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propylthiouracil - Uses, Side Effects & Warnings - medtigo

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propylthiouracil

Brand Name :

PTU

Synonyms :

propylthiouracil

Class :

Antithyroid agents





No data available for drug.

Actions and Spectrum: 

Actions: 

  • Inhibits the production of thyroid hormone by blocking the activity of an enzyme called thyroperoxidase, which is involved in the synthesis of thyroid hormones. 
  • Reduces the conversion of the thyroid hormone thyroxine (T4) to its active form, triiodothyronine (T3), by inhibiting another enzyme called 5′-deiodinase. 
  • May also have some immunosuppressive effects. 

Spectrum: 

  • PTU is mainly used in the treatment of hyperthyroidism, including Graves’ disease, toxic multinodular goiter, and toxic adenoma. 
  • It can also be used in the treatment of thyroid storm, a life-threatening complication of hyperthyroidism. 
  • PTU may be used in pregnant women with hyperthyroidism, as it is considered safer than methimazole, another medication used for hyperthyroidism, during pregnancy. 

DRUG INTERACTION

propylthiouracil

&

  • interferon beta 1b
  • tetracaine/oxymetazoline intranasal
  • benzocaine oropharyngeal
  • benzalkonium chloride/menthol/petrolatum topical
  • inamrinone
  • alpha 1 proteinase inhibitor
  • potassium bicarbonate/potassium citrate
  • potassium phosphate/sodium acid phosphate
  • asparaginase Erwinia chrysanthemi recombinant
  • motixafortide
  • pegloticase
  • etesevimab
  • Rho(D) immune globulin
  • tetanus immune globulin (TIG)
  • reltecimod (pending FDA approval)
  • avasopasem
  • trimethoprim/polymyxin B ophthalmic
  • naphazoline ophthalmic
  • sulfacetamide topical
  • sirolimus intravitreal (pending FDA approval)
  • sirolimus protein bound
  • sirolimus topical
  • glycopyrronium tosylate topical
  • sofpironium
  • olmesartan, amlodipine and hydrochlorothiazide
  • dovitinib (Pending FDA Approval)
  • epinephrine inhaled
  • quizartinib (Pending FDA Approval)
  • ranibizumab intravitreal injection
  • sodium hyaluronate
  • bacitracin and lidocaine topical
  • brimonidine topical
  • benzoyl peroxide and tretinoin topical
  • talquetamab
  • betrixaban
  • acetaminophen/caffeine/pyrilamine
  • fentanyl transmucosal
  • bacitracin topical
  • buprenorphine,long-acting injection
  • buprenorphine buccal
  • nalmefene intranasal
  • sulbactam/durlobactam
  • metronidazole topical 
  • daratumumab/hyaluronidase
  • glofitamab
  • rituximab-hyaluronidase
  • drospirenone/ethinyl estradiol/levomefolate
  • loncastuximab tesirine
  • ingenol mebutate topical
  • momelotinib
  • trastuzumab/deruxtecan
  • trastuzumab/hyaluronidase
  • trastuzumab duocarmazine
  • lifileucel
  • umbralisib
  • eflornithine/sulindac
  • cytarabine/daunorubicin liposomal
  • doxorubicin liposomal
  • epcoritamab
  • lanadelumab  
  • esomeprazole/naproxen 
  • terbinafine topical
  • ravulizumab
  • clotrimazole topical
  • choline magnesium trisalicylate
  • tacrolimus ointment
  • mechlorethamine topical
  • donislecel
  • pozelimab (Pending FDA Approval)
  • rabies immune globulin, human (RIG)
  • melphalan flufenamide
  • sintilimab (Pending FDA Approval)
  • oportuzumab monatox (Pending FDA Approval)
  • sotorasib
  • irinotecan liposomal
  • sulfur topical
  • silver sulfadiazine
  • capsaicin transdermal
  • sutimlimab
  • tretinoin topical
  • acetaminophen rectal
  • menthol topical
  • naftifine
  • oatmeal, colloidal topical
  • oxiconazole
  • methylsalicylate/menthol topical
  • C1 inhibitor human
  • lifitegrast ophthalmic
  • prednisolone/sulfacetamide ophthalmic
  • mannitol inhalation
  • ofloxacin otic
  • petrolatum & mineral oil topical
  • clascoterone topical
  • gefapixant (Pending FDA Approval)
  • colesevelam
  • technetium Tc 99m succimer
  • nebivolol/valsartan
  • ciprofloxacin/fluocinolone acetonide, otic
  • finafloxacin otic
  • magnesium hydroxide/mineral oil
  • phenylephrine/mineral oil/petrolatum rectal
  • carbamide peroxide oral
  • atropine ophthalmic
  • sodium sulfacetamide/sulfur
  • sulfacetamide ophthalmic
  • lucinactant
  • benzonatate
  • besifloxacin ophthalmic
  • benzhydrocodone/acetaminophen
  • beractant
  • trimagnesium citrate anhydrous
  • vitamin b2
  • carbamide peroxide otic
  • mineral oil topical
  • ethyl alcohol intranasal
  • boric acid/alcohol otic
  • absorbable gelatin compressed sponge, USP
  • absorbable gelatin sponge, USP
  • vincristine liposomal
  • technetium Tc 99m albumin aggregated injection
  • metaproterenol
  • budesonide inhaled/formoterol/glycopyrrolate inhaled
  • epinephrine racemic
  • umeclidinium bromide/vilanterol inhaled
  • indacaterol, inhaled/glycopyrrolate inhaled
  • betaine  
  • laronidase 
  • estrogens esterified/methyltestosterone            
  • cerliponase alfa
  • ertugliflozin/sitagliptin
  • hawthorn
  • shepherd’s purse
  • thiamine
  • naphazoline/glycerin ophthalmic
  • oxymetazoline ophthalmic
  • dorzolamide
  • dexamethasone intraocular
  • dexamethasone/ciprofloxacin
  • dexamethasone ophthalmic
  • metipranolol ophthalmic
  • timolol ophthalmic
  • boron
  • fezolinetant
  • pegunigalsidase alfa-iwxj
  • biotin
  • pantothenic acid
  • silicon
  • sodium acid phosphate
  • hypochlorous acid topical
  • methenamine/sodium acid phosphate
  • aviptadil 
  • bremelanotide
  • glucagon intranasal
  • metformin and repaglinide
  • bai ji
  • pau d’arco
  • juzentaihoto
  • mistletoe
  • quercetin
  • rosemary
  • sheng di huang
  • chasteberry
  • maitake
  • grapefruit
  • lentinan
  • juniper
  • nettle
  • parsley
  • rose hips
  • tongkat ali
  • horny goat weed
  • damiana
  • yohimbe
  • insulin NPH
  • aprocitentan
  • noni Juice
  • sodium iodide I-131
  • green tea
  • sea cucumber
  • wheat germ extract
  • fenofibrate micronized 
  • rogisen
  • danshen
  • lutein
  • witch hazel
  • dextroamphetamine transdermal
  • amphetamine/dextroamphetamine
  • hoodia
  • kolanut
  • boswellia
  • opuntia ficus indica
  • lavender
  • nadh
  • tea tree oil
  • metformin/sitagliptin 
  • dapagliflozin/ metformin/saxagliptin  
  • antihemophilic factor recombinant
  • inclisiran
  • bempedoic acid/ezetimibe
  • volanesorsen  
  • omega 3 carboxylic acids
  • pericyazine
  • levomepromazine (methotrimeprazine)
  • betaxolol ophthalmic
  • respiratory syncytial virus vaccine, adjuvanted
  • phenylephrine hydrochloride and tropicamide ophthalmic
  • alirocumab
  • neomycin/polymyxin B/gramicidin ophthalmic
  • factor IX
  • gentamicin topical
  • ansofaxine (Pending FDA Approval)
  • zuranolone (Pending FDA Approval)
  • factor IX, recombinant
  • factor IX complex
  • factor XIII A-subunit, recombinant
  • factor X, human
  • mesalamine rectal
  • etrasimod
  • anti-inhibitor coagulant complex
  • factor IX, recombinant/albumin fusion protein
  • fibrinogen, human
  • aminocaproic acid
  • metyrosine
  • nonoxynol-9 vaginal
  • progesterone intravaginal gel
  • ipecac syrup
  • botulinum antitoxin, heptavalent
  • pentetate calcium trisodium
  • crotalidae polyvalent immune FAB (ovine)
  • dehydrated alcohol injection 
  • gold sodium thiomalate (Discontinued)
  • lactic acid/citric acid/potassium bitartrate vaginal
  • von Willebrand factor, recombinant
  • luspatercept
  • digoxin immune FAB (Antidote)
  • crotalidae immune FAB (equine)
  • magnesium (Antidote)
  • pyridoxine (Antidote)
  • edetate calcium disodium
  • albumin IV
  • nitroglycerin sublingual
  • obiltoxaximab
  • anthrax immune globulin
  • nitroglycerin topical
  • dextrose
  • nesiritide
  • estradiol vaginal
  • bazedoxifene/conjugated estrogens
  • botulism immune globulin iv
  • amoxicillin/omeprazole/rifabutin
  • synthetic human angiotensin II
  • nitroglycerin IV
  • nitroglycerin translingual
  • nitroprusside sodium
  • tetrahydrozoline/zinc sulfate/hypromellose ophthalmic
  • sodium citrate/citric acid
  • pemetrexate
  • methicillin
  • plasminogen 
  • acai
  • american ginseng
  • cordyceps
  • tramadol/acetaminophen
  • belladonna alkaloids/phenobarbital
  • erythromycin topical/benzoyl peroxide
  • glucosamine sulfate
  • panax ginseng (suppl/herb)
  • tolnaftate
  • sulopenem etzadroxil/probenecid (Pending FDA Approval)
  • sulfur hexafluoride
  • sotrovimab
  • arbaclofen
  • rifampin/isoniazid
  • clindamycin /tretinoin topical
  • benzoyl peroxide/clindamycin topical
  • apremilast
  • antivenins, centuroides (scorpion)
  • bamlanivimab and etesevimab
  • vilobelimab
  • gadobenate
  • pentosan polysulfate sodium
  • methylsalicylate/menthol/camphor topical
  • antivenin, black widow spider
  • benzoyl peroxide and hydrocortisone
  • clindamycin topical
  • isometheptene, dichloralphenazone and acetaminophen
  • acetaminophen and phenyltoloxamine
  • erythromycin topical
  • erythromycin ophthalmic
  • alpha hydroxy acids, topical
  • buprenorphine transdermal
  • butalbital/acetaminophen/caffeine
  • buprenorphine/samidorphan
  • buprenorphine subdermal implant
  • celecoxib/tramadol
  • drospirenone/ethinyl estradiol
  • resorcinol/sulfur
  • eflornithine
  • rifampin/isoniazid/pyrazinamide
  • tofersen
  • devil’s claw
  • ticarcillin/clavulanate
  • atropine/pralidoxime
  • aprepitant
  • suramin
  • phenelzine 
  • artichoke
  • american dogwood
  • attapulgite
  • atlantic cedar
  • axalimogene filolisbac
  • sodium thiosulfate & sodium nitrite
  • ataluren
  • omidubicel-onlv
  • capsicum
  • ginger
  • cryoprecipitate
  • bictegravir/emtricitabine/tenofovir DF
  • emtricitabine/tenofovir DF
  • fo-ti
  • siberian ginseng
  • granulocytes
  • zinc substituted heme C
  • zinc trihydroxide
  • ashwagandha 
  • cat’s claw
  • glandular products
  • SAMe
  • shark cartilage
  • altovis
  • feverfew
  • horse chestnut
  • magnesium aspartate
  • octacosanol
  • pleurisy root
  • star anise
  • butterbur
  • elderberry
  • licorice (Suppl/herb)
  • aconite
  • pentetate zinc trisodium
  • menthol topical/zinc oxide topical
  • corn-starch/kaolin/zinc oxide topical
  • 5-htp
  • butcher’s broom
  • articulin
  • bearberry
  • goldenrod
  • progesterone, natural
  • black cohosh
  • wild yam
  • cranberry
  • dong quai
  • phytoestrogens
  • norethindrone
  • false Unicorn Root
  • raspberry Leaf
  • asafoetida
  • turmeric
  • dehydroepiandrosterone (DHEA)
  • hyaluronan
  • aliskiren/amlodipine
  • octreotide (Antidote)
  • tranexamic acid injection
  • duocal
  • neocate infant formula
  • pediatric Eo28
  • aloe
  • red clover
  • propolis
  • androstenedione
  • heartsease
  • comfrey
  • bilberry
  • chamomile
  • eyebright
  • calendula
  • sage
  • yucca
  • polypody
  • odevixibat
  • vinpocetine
  • olanzapine/samidorphan
  • creatine
  • yerba mate
  • spesolimab
  • azficel-T
  • tiludronate
  • estetrol and drospirenone
  • pseudoephedrine/fexofenadine
  • lincomycin
  • neomycin oral
  • fluocinolone acetonide, otic
  • tretinoin/ hydroquinone/ fluocinolone
  • halobetasol topical
  • hydrocortisone/​iodoquinol
  • penicillin G procaine /penicillin G benzathine
  • hydrocortisone probutate topical
  • colistin/neomycin/hydrocortisone/thonzonium otic
  • ebola zaire vaccine
  • hepatitis a/​b vaccine
  • vibegron
  • lindane
  • nystatin topical
  • respiratory syncytial virus (RSV) vaccine
  • chikungunya vaccine
  • tenecteplase
  • reteplase
  • anthrax vaccine adsorbed, adjuvanted
  • meningococcal ABCWY pentavalent vaccine
  • eculizumab
  • cholestyramine
  • tinzaparin
  • taurolidine/​citrate/​heparin
  • protein C concentrate
  • antithrombin alfa
  • antithrombin III
  • multivitamins, vision
  • ibuprofen/​chlorpheniramine/​pseudoephedrine
  • acetaminophen/ibuprofen
  • ibuprofen/pseudoephedrine
  • paclitaxel protein-bound
  • acetic acid vaginal
  • acetic acid otic
  • hydrocodone/ ibuprofen
  • methyl salicylate / isopropanol/ citronellyl acetate/ citric acid
  • ibuprofen and phenylephrine
  • acetylcysteine (Antidote)
  • iron/​folic acid/​vitamin/​mineral
  • iobenguane I-131
  • dolutegravir/rilpivirine
  • chlorhexidine topical
  • chlorhexidine oral
  • thyroid desiccated
  • proparacaine ophthalmic
  • podophyllum resin
  • phendimetrazine
  • phenoxybenzamine
  • polidocanol
  • phentermine and topiramate
  • piflufolastat F18
  • piperacillin/tazobactam
  • prednisolone and gentamicin ophthalmic
  • promethazine and codeine
  • poractant alfa
  • protamine sulfate
  • aflibercept intravitreal
  • prednicarbate
  • promethazine/dextromethorphan
  • codeine, phenylephrine, and promethazine
  • potassium phosphate
  • glatiramer acetate
  • gentamicin (Ophthalmic)
  • leniolisib
  • rezafungin
  • fluorometholone
  • dalfampridine
  • hydrocortisone topical 
  • empagliflozin and linagliptin
  • triamcinolone topical
  • minocycline topical
  • minocycline dental
  • ketotifen ophthalmic
  • darunavir and cobicistat
  • lidocaine topical
  • neomycin/polymyxin B/bacitracin/lidocaine (OTC)
  • lidocaine/ hydrocortisone
  • lidocaine anesthetic
  • lidocaine ophthalmic
  • lidocaine/tetracaine
  • desonide
  • dabigatran
  • fexofenadine
  • fluoride
  • decitabine and cedazuridine
  • dasiglucagon
  • hydroxypropyl cellulose ophthalmic
  • epoetin alfa
  • ibritumomab tiuxetan
  • trimethobenzamide
  • dexamethasone/ tobramycin
  • tafasitamab
  • valacyclovir
  • mebendazole
  • levoleucovorin
  • flaxseed
  • germanium
  • glutathione
  • lycopene
  • pygeum
  • horseradish
  • ziv-aflibercept
  • micafungin
  • trofinetide
  • taliglucerase alfa
  • tildrakizumab
  • sulopenem (Pending FDA Approval)
  • thyrotropin alfa
  • birch
  • thrombin, topical
  • tivozanib
  • tafluprost
  • methohexital
  • urea and hydrocortisone
  • unoprostone ophthalmic
  • trihexyphenidyl
  • ezetimibe
  • evolocumab
  • trifluridine and tipiracil
  • methenamine
  • misoprostol
  • miltefosine
  • rimantadine
  • maralixibat
  • coenzyme Q10
  • chlorella
  • garlic
  • forskolin
  • zavegepant
  • menotropins
  • margetuximab
  • meprobamate
  • melarsoprol
  • evening primrose oil
  • lemongrass
  • molindone
  • fenugreek
  • phytosterols
  • red yeast rice
  • uridine triacetate
  • tropicamide
  • incobotulinumtoxinA
  • Grape Seed Extract
  • carbachol ophthalmic
  • cosyntropin
  • cyclopentolate and phenylephrine
  • carteolol ophthalmic
  • pentazocine/naloxone
  • pentazocine/acetaminophen
  • casimersen
  • carisoprodol, aspirin, and codeine
  • carisoprodol
  • carboprost tromethamine
  • flurandrenolide
  • brinzolamide/brimonidine
  • betamethasone topical
  • omaveloxolone
  • bardoxolone
  • allogeneic processed thymus tissue
  • fluocinolone topical
  • tacrolimus topical
  • ruxolitnib topical
  • pimecrolimus topical
  • sofosbuvir, velpatasvir and voxilaprevir
  • sofosbuvir/velpatasvir
  • mitotane
  • elbasvir/​grazoprevir
  • wheat dextrin
  • vanadium
  • iron/folic acid/vitamin/mineral
  • molybdenum
  • sparsentan
  • velmanase alfa-tycv
  • pegcetacoplan
  • ferrous sulfate
  • cyclosporine ophthalmic
  • ferric pyrophosphate
  • ammonium lactate
  • etelcalcetide
  • iodoquinol
  • sucroferric oxyhydroxide
  • doxercalciferol
  • terconazole vaginal
  • cortisone
  • pyronaridine
  • tetrahydrozoline, ophthalmic
  • tenapanor
  • tesamorelin
  • benazepril/hydrochlorothiazide
  • nadolol and bendroflumethiazide
  • spironolactone and hydrochlorothiazide
  • COVID-19 Vaccine, mRNA
  • atosiban
  • bisoprolol and hydrochlorothiazide
  • ephedrine/guaifenesin
  • clonidine/chlorthalidone
  • captopril/hydrochlorothiazide
  • amlodipine/valsartan/hydrochlorothiazide
  • hydrochlorothiazide and irbesartan
  • candesartan/hydrochlorothiazide
  • ciclesonide intranasal
  • cromolyn sodium ophthalmic
  • methyldopa/hydrochlorothiazide
  • valsartan/hydrochlorothiazide
  • hydrochlorothiazide and triamterene
  • moexipril/hydrochlorothiazide
  • mometasone/intranasal
  • ofloxacin ophthalmic
  • cysteamine
  • metoprolol/hydrochlorothiazide
  • amlodipine/olmesartan
  • eprosartan/hydrochlorothiazide
  • amlodipine/telmisartan
  • hydrochlorothiazide/aliskiren
  • betamethasone/clotrimazole
  • telmisartan/hydrochlorothiazide
  • benazepril/amlodipine
  • bezlotoxumab
  • propranolol/hydrochlorothiazide
  • bupropion/naltrexone
  • burosumab
  • acetylcholine chloride intraocular solution
  • bupivacaine and meloxicam
  • budesonide and formoterol (inhalation)
  • valerian
  • entacapone/levodopa/carbidopa
  • carbidopa/levodopa
  • calaspargase pegol
  • cabotegravir
  • cefixime
  • calfactant
  • brinzolamide
  • daprodustat
  • brimonidine and timolol
  • brodalumab
  • buprenorphine and naloxone
  • hydrocortisone acetic acid otic
  • butorphanol
  • butoconazole
  • adapalene and benzoyl peroxide
  • acrivastine and pseudoephedrine
  • neomycin/polymyxin B/bacitracin topical
  • midodrine
  • baloxavir marboxil
  • bacitracin, neomycin, polymyxin B, and hydrocortisone topical
  • avatrombopag
  • glucagon
  • atenolol/chlorthalidone
  • adefovir
  • activated charcoal
  • avalglucosidase alfa
  • aclidinium and formoterol
  • iclaprim (Pending FDA Approval)
  • ampicillin/sulbactam
  • quinupristin/dalfopristin
  • lamivudine/zidovudine/abacavir
  • acetaminophen and caffeine
  • acetaminophen/pamabrom
  • abacavir and lamivudine
  • anifrolumab
  • elacestrant
  • anidulafungin
  • acetohydroxamic acid
  • alogliptin/pioglitazone
  • anthralin
  • pirtobrutinib
  • gabapentin
  • galsulfase
  • gadoterate meglumine
  • ferric gluconate
  • ferric derisomaltose
  • ethanolamine oleate
  • eteplirsen
  • vasopressin
  • desmopressin
  • meropenem/vaborbactam
  • ecallantide
  • econazole topical
  • dornase alfa
  • aspirin/dipyridamole
  • dipyridamole
  • difenoxin and atropine
  • diflorasone
  • difluprednate ophthalmic
  • eptinezumab
  • diethylpropion
  • dexchlorpheniramine
  • dexmethylphenidate
  • serdexmethylphenidate/​dexmethylphenidate
  • bexagliflozin
  • galcanezumab
  • fremanezumab
  • tapinarof topical
  • darifenacin
  • dalbavancin
  • darbepoetin alfa
  • azilsartan
  • colestipol
  • corticorelin
  • crotamiton
  • crofelemer
  • allogeneic cultured keratinocytes/fibroblasts in bovine collagen
  • tapentadol
  • cyclopentolate
  • polymyxin B/bacitracin topical
  • ketoconazole topical
  • tavaborole
  • tagraxofusp
  • crisaborole
  • crizanlizumab
  • satralizumab
  • spinosad
  • sacubitril/valsartan
  • sargramostim
  • sebelipase alfa
  • regadenoson
  • ribociclib/letrozole
  • ragweed allergen extract
  • radium-223 dichloride
  • secnidazole
  • setmelanotide
  • polycarbophil
  • plecanatide
  • sacituzumab govitecan
  • pertuzumab
  • pertuzumab/trastuzumab/hyaluronidase
  • pamidronate
  • halcinonide
  • glecaprevir/​pibrentasvir
  • glucarpidase
  • golodirsen
  • dextrose (antidote)
  • hexaminolevulinate
  • iohexol
  • ferric citrate
  • elapegademase
  • emicizumab
  • erenumab
  • danaparoid
  • dantrolene
  • eflapegrastim
  • edaravone
  • amcinonide
  • carglumic acid
  • alcaftadine ophthalmic
  • agalsidase beta
  • afamelanotide
  • fosdenopterin
  • lidocaine and chlorhexidine
  • levorphanol
  • calcifediol
  • factor VIIa, recombinant
  • triheptanoin
  • peanut oral allergen powder
  • teprotumumab
  • poly-L-lactic acid/carboxymethylcellulose/mannitol
  • xenon Xe 129 hyperpolarized
  • ublituximab
  • anacaulase
  • glatiramer
  • peginterferon beta-1a
  • interferon beta-1a
  • onabotulinumtoxinA
  • cycloserine
  • ethionamide
  • cabotegravir and rilpivirine
  • vericiguat
  • omidenepag isopropyl
  • azelastine/fluticasone intranasal
  • benzyl peroxide
  • vutrisiran
  • brimonidine
  • testosterone topical
  • lenacapavir
  • tebentafusp
  • mosunetuzumab
  • faricimab
  • ganirelix
  • nadofaragene firadenovec
  • ozenoxacin
  • guaifenesin
  • adagrasib
  • guselkumab
  • adalimumab-aacf
  • nonoxynol-9
  • nifurtimox
  • nusinersen
  • nitazoxanide
  • mavacamten
  • calcipotriene
  • bimatoprost
  • obinutuzumab
  • amifostine
  • oxycodone/​aspirin
  • oxycodone/ibuprofen
  • oteseconazole
  • oxychlorosene
  • porfimer
  • pramoxine /hydrocortisone topical
  • podofilox
  • quinapril/hydrochlorothiazide
  • acetaminophen/pamabrom/pyrilamine
  • levobunolol
  • paregoric
  • idursulfase
  • lesinurad and allopurinol
  • latanoprost/​netarsudil ophthalmic
  • lactase enzyme
  • bioadherent oral
  • latanoprost and timolol
  • latanoprostene bunod
  • ledipasvir/sofosbuvir
  • imipenem/cilastatin/relebactam
  • imipenem/cilastatin
  • hemin
  • deucravacitinib
  • house dust mite allergen extract
  • halobetasol topical/tazarotene
  • remimazolam
  • somatropin
  • remifentanil
  • ethotoin
  • etidronate
  • empagliflozin, linagliptin, and metformin
  • elvitegravir/cobicistat/emtricitabine/tenofovir AF
  • empagliflozin/​linagliptin
  • evinacumab
  • finasteride and tadalafil
  • flortaucipir (18F)
  • proparacaine/ fluorescein ophthalmic
  • fluorescein/benoxinate ophthalmic
  • fluphenazine
  • alogliptin/​metformin
  • alogliptin/pioglitazone
  • alitretinoin topical
  • dextrose/ sodium citrate/fructose
  • dasabuvir
  • ombitasvir​/paritaprevir/​ritonavir
  • hydrocodone/​chlorpheniramine/​pseudoephedrine
  • hydroxyamphetamine/​tropicamide
  • acamprosate
  • gadobutrol
  • teclistamab
  • tremelimumab
  • futibatinib
  • etranacogene dezaparvovec
  • olutasidenib
  • naproxen and diphenhydramine
  • naratriptan
  • gadopiclenol
  • gadoxetate
  • gadoversetamide
  • naphazoline/pheniramine
  • naphazoline
  • nalbuphine
  • vosoritide
  • vitamin K1 (phytonadione)
  • moxidectin
  • basiliximab
  • fecal microbiota, live-jslm
  • ibuprofen/famotidine
  • famotidine
  • raxibacumab
  • omalizumab
  • measles, mumps, rubella, and varicella vaccine, live (Rx)
  • senna/docusate
  • dinoprostone
  • measles mumps and rubella vaccine, live
  • immune globulin IM (IGIM)
  • dyclonine
  • doravirine, lamivudine, and tenofovir disoproxil fumarate
  • elexacaftor/tezacaftor/ivacaftor
  • ivacaftor/tezacaftor
  • treosulfan
  • tranexamic acid
  • norethindrone acetate/​estradiol/​elagolix
  • artesunate
  • trientine
  • trifarotene
  • ziconotide
  • vonoprazan/amoxicillin/clarithromycin
  • pyrithione zinc
  • zinc oxide topical
  • naphazoline/​zinc sulfate/​glycerin ophthalmic
  • voretigene neparvovec
  • nirmatrelvir/ritonavir
  • bebetelovimab
  • sodium chloride
  • relugolix/​estradiol/​norethindrone
  • defibrotide
  • prothionamide
  • liraglutide
  • etilfrine
  • alpha-lipoic acid
  • ramosetron
  • olodaterol/tritropium
  • cimetropium
  • umeclidinium
  • itopride
  • secretin
  • naftopidil
  • trimeprazine
  • benperidol
  • chlormethiazole
  • multivitamins
  • secukinumab
  • glycopyrrolate inhaled and formoterol
  • amitriptyline and chlordiazepoxide
  • tirzepatide
  • relugolix/estradiol/norethindrone
  • mupirocin
  • alvimopan
  • chlordiazepoxide
  • insulin regular human
  • insulin aspart protamine/​insulin aspart
  • insulin isophane human/​insulin regular human
  • insulin degludec/insulin aspart
  • teplizumab
  • chlordiazepoxide/clidinium
  • aspirin, sodium bicarbonate, and citric acid
  • aluminum hydroxide, magnesium hydroxide, and simethicone
  • glycopyrrolate inhaled
  • olodaterol/tiotropium
  • umeclidinium bromide
  • timolol/dorzolamide
  • travoprost ophthalmic
  • loxapine
  • eptifibatide
  • hydrocodone/acetaminophen
  • omega 3 fatty acids
  • trandolapril/​verapamil
  • abciximab
  • artificial saliva
  • diphtheria, hepatitis B, pertussis (acellular), polio, and tetanus vaccine
  • diphtheria, haemophilus B, pertussis, polio, tetanus vaccine
  • haemophilus influenzae type b vaccine/hepatitis b vaccine
  • butalbital/aspirin/caffeine 
  • colchicine/probenecid
  • atovaquone and proguanil
  • ursodiol
  • chenodiol
  • casirivimab/imdevimab
  • tixagevimab/cilgavimab
  • molnupiravir
  • bebtelovimab
  • calcium, magnesium, potassium and sodium oxybate
  • sodium oxybate
  • diphtheria, polio, pertussis acellular, tetanus vaccine
  • pseudoephedrine loratadine
  • sodium chloride nasal
  • hydroxychloroquine sulfate
  • atorvastatin and ezetimibe
  • teriparatide
  • alendronate and cholecalciferol
  • alprostadil (IV)
  • romosozumab
  • risedronate
  • alendronate
  • glyburide/metformin
  • clorazepate
  • rosuvastatin/​ezetimibe
  • paclitaxel/encequidar
  • valsartan/amlodipine
  • enalapril/hydrochlorothiazide
  • enalapril and felodipine
  • amiloride/hydrochlorothiazide
  • triamterene/hydrochlorothiazide
  • lisinopril/hydrochlorothiazide
  • tegaserod
  • rhein
  • ritanserin
  • sulfaphenazole
  • sulconazole
  • taurursodiol
  • bromeperidol
  • carbapenems
  • fotemustine
  • difelikefalin
  • bromopride
  • alizapride
  • olopatadine
  • oxomemazine
  • paraldehyde
  • oxcarbazepine
  • kratom
  • elexacaftor
  • oritavancin
  • miocamycin
  • curcumin sulfate
  • seproxetine
  • clotrimazole
  • remacemide
  • piperine
  • ditiocarb
  • danoprevir
  • oxetacaine
  • topiroxostat
  • indisulam
  • tofisopam
  • noscapine
  • thiopental
  • tioconazole
  • nicotinamide
  • rutin
  • mequitazine
  • somatostatin
  • vapreotide
  • econazole
  • saracatinib
  • lestaurtinib
  • efonidipine
  • zimelidine
  • indalpine
  • desvenlafaxine
  • benidipine
  • dapoxetine
  • tesmilifene
  • pergolide
  • sitaxentan
  • resveratrol
  • bifonazole
  • tildipirosin
  • solithromycin
  • selamectin
  • imiquimod topical
  • fluorouracil topical
  • peginterferon alfa-2b
  • interferon alfa-2b
  • alteplase
  • tanshinone I
  • rosmarinic acid
  • caryophyllene
  • ursolic acid
  • cepharanthine
  • veliflapon
  • mirikizumab
  • cp-96345
  • famprofazone
  • peoniflorin
  • fepradinol
  • licofelone
  • polmacoxib
  • ebselen
  • taxifolin
  • betulinic acid
  • flurbiprofen axetil
  • talniflumate
  • morniflumate
  • nitroaspirin
  • firocoxib
  • ns-398
  • cimicoxib
  • robenacoxib
  • sc-236
  • imidazole salicylate
  • trolamine salicylate
  • pirprofen
  • benorilate
  • ethenzamide
  • mofebutazone
  • proquazone
  • carbaspirin calcium
  • guacetisal
  • proglumetacin
  • propyphenazone
  • pranoprofen
  • bendazac
  • tenidap
  • lonazolac
  • nifenazone
  • flunoxaprofen
  • difenpiramide
  • feprazone
  • bufexamac
  • alminoprofen
  • suxibuzone
  • fentiazac
  • tinoridine
  • tepoxalin
  • indobufen
  • flunixin
  • propacetamol
  • clonixin
  • droxicam
  • epirizole
  • etofenamate
  • ibuproxam
  • indoprofen
  • kebuzone
  • felbinac
  • zaltoprofen
  • azapropazone
  • zomepirac
  • niflumic acid
  • magnesium salicylate
  • suprofen
  • nepafenac
  • bromfenac
  • ciprofloxacin and hydrocortisone (otic) (Rx)
  • hydrocortisone/neomycin/polymyxin otic (Rx)
  • vigabatrine
  • valproate
  • tezepelumab (Rx)
  • triamcinolone acetonide/nystatin
  • triamcinolone suprachoroidal (Rx)
  • triamcinolone, intranasal
  • ciclesonide inhaled
  • diosmin
  • tirbanibulin
  • padeliporfin
  • roxadustat
  • aminosalicylic acid
  • rasburicase
  • tetracaine
  • articaine
  • ropivacaine
  • nitrous oxide
  • sulfapyridine
  • sulfanilamide
  • mafenide
  • isometheptene
  • amyl nitrite
  • antipyrine
  • isosorbide dinitrate
  • prilocaine
  • nitroglycerin
  • tobacco
  • batefenterol
  • hexoprenaline
  • pf-00610355
  • racepinephrine
  • protokylol
  • doxofylline
  • phenylpropanolamine
  • isoetharine
  • ephedra sinica root
  • dipivefrin
  • arbutamine
  • norepinephrine
  • fenoterol
  • clenbuterol
  • pirbuterol
  • epinephrine
  • ritodrine
  • procaterol
  • orciprenaline
  • bitolterol
  • abediterol
  • fluticasone furoate, umeclidinium and vilanterol
  • fluticasone furoate and vilanterol
  • mometasone and formoterol
  • pramoxine topical (OTC)
  • menthol/pramoxine (topical)
  • tetrastarch
  • plasma protein fraction
  • hetastarch
  • rokitamycin
  • ridaforolimus
  • oleandomycin
  • patupilone
  • mitemcinal
  • midecamycin
  • mirvetuximab soravtansine
  • lorvotuzumab mertansine
  • kitasamycin
  • flurithromycin
  • eprinomectin
  • epofolate
  • epothilone D
  • coltuximab ravtansine
  • dirithromycin
  • doramectin
  • cethromycin
  • carbomycin
  • paramethasone
  • dexamethasone isonicotinate
  • quinupristin
  • sarilumab
  • dalfopristin
  • curcumin
  • luliconazole
  • procaine
  • chloroprocaine
  • phencyclidine
  • tenocyclidine
  • profenamine
  • halothane
  • lfenprodil
  • calcium levulinate
  • agmatine
  • calcium pangamate
  • calcium glubionate
  • edodekin alfa
  • beloranib
  • aflibercept
  • endostar
  • volociximab
  • roquinimex
  • anecortave acetate
  • squalamine
  • brolucizumab
  • trebananib
  • semaxanib
  • endostatin
  • halofuginone
  • resveratol
  • ranibizumab
  • fumagilin
  • bevacizumab
  • hyperforin
  • aminohippuric acid
  • opicapone
  • pafolacianine
  • bempedoic acid
  • belantamab mafodotin
  • prasterone
  • glecaprevir
  • levomenol
  • parachlorophenol
  • gadoxetic acid
  • cholecystokinin
  • caspofungin
  • ouabain
  • rifampicin
  • taurocholic acid
  • methylphosphinic acid
  • revefenacin
  • isoprenaline
  • posiphen
  • acotiamide
  • triflupromazine
  • pegvisomant
  • pipecuronium
  • regramostim
  • phenserine
  • diethylcarbamazine
  • cinchocaine
  • pancuronium
  • bambuterol
  • hexafluronium
  • aprotinin
  • tyrothricin
  • decamethonium
  • ipidacrine
  • tubocurarine
  • paraoxon
  • ginkgo biloba
  • methanesulfonyl fluoride
  • dichlorvos
  • fenthion
  • metrifonate
  • coumaphos
  • huperzine A
  • distigmine
  • neostigmine
  • isoflurophate
  • tasosartan
  • fimasartan
  • methylthioninium
  • minaprine
  • gallamine triethiodide
  • ambenonium
  • abiraterone
  • mibefradil
  • hydrocortisone (systemic)
  • cetirizine (systemic)
  • Talimogene Laherparepvec
  • Diacerein
  • Magnesium glucoheptonate
  • acyclovir and hydrocortisone
  • acyclovir (ophthalmic)
  • acyclovir (topical)
  • docosanol cream
  • camphor and phenol
  • dolutegravir, abacavir, and lamivudine
  • peramivir
  • lisdexamfetamine
  • ergoloid mesylates
  • memantine/donepezil
  • tranylcypromine
  • isocarboxazid
  • methenamine/sodium salicylate/benzoic acid
  • mometasone topical (Rx)
  • Esketamine intranasal
  • Oracit
  • Shohls Solution
  • sodium lactate
  • sodium citrate
  • lecanemab
  • donepezil (Rx)
  • donepezil transdermal
  • sodium thiosulfate
  • ciclopirox
  • undecylenic acid
  • butenafine
  • calcium and vitamin D
  • zoledronic acid
  • calcitonin salmon
  • pizotifen
  • indoramin
  • salicylic acid acne
  • minoxidil topical
  • adapalene
  • orlistat
  • COVID-19 subunit vaccine
  • amoxicillin /vonoprazan
  • levamlodipine (Rx)
  • Omeprazole, amoxicillin, and clarithromycin
  • simvastatin/ezetimibe
  • amlodipine/atorvastatin
  • amoxicillin and clavulanate potassium
  • lansoprazole, amoxicillin, and clarithromycin
  • noradrenaline
  • carbaryl
  • botulinum toxin
  • atropine
  • artemether/lumefantrine
  • ergonovine
  • bunazosin (Not available in the United States)
  • ibalizumab
  • dolutegravir
  • hydrocodone/pseudoephedrine
  • cetirizine/pseudoephedrine
  • acetaminophen/dextromethorphan/pseudoephedrine/guaifenesin
  • acetaminophen IV/ibuprofen IV (Pending FDA Approval)
  • medroxyprogesterone
  • acetaminophen/caffeine
  • Acetaminophen/magnesium salicylate/pamabrom
  • megestrol
  • pyridoxine (vitamin B6)
  • folic acid-cyanocobalamin-pyridoxine
  • L-methylfolate-pyridoxal 5′-phosphate-methylcobalamine
  • estropipate
  • betamethasone (systemic)
  • dolutegravir and lamivudine
  • zidovudine and lamivudine
  • mineral oil (oral/rectal)
  • regular insulin
  • dextromethorphan/bupropion
  • diphenhydramine/ibuprofen
  • enfuvirtide
  • doxapram
  • methamphetamine
  • dextroamphetamine
  • ephedrine
  • brompheniramine, dextromethorphan and phenylephrine
  • aspirin, chlorpheniramine, and phenylephrine
  • acetaminophen, pheniramine, and phenylephrine
  • chlorpheniramine and phenylephrine
  • guaifenesin and phenylephrine
  • rivastigmine
  • pyridostigmine
  • arecoline
  • physostigmine
  • abobotulinumtoxinA
  • echothiophate iodide
  • malathion
  • glibenclamide
  • rimabotulinumtoxinB
  • pioglitazone
  • daxibotulinumtoxinA
  • prabotulinumtoxinA
  • mepenzolate
  • trospium
  • modafinil
  • budesonide (oral inhalation)
  • budesonide (nasal)
  • budesonide (Topical)
  • vedolizumab
  • hydrocodone and homatropine
  • homatropine ophthalmic
  • methscopolamine
  • oxandrolone
  • nandrolone
  • fluoxymesterone
  • procyclidine
  • biperiden
  • benztropine
  • oxymetholone
  • ipratropium
  • belladonna/opium
  • pilocarpine
  • nicotine intranasal
  • succinylcholine
  • cromolyn sodium
  • mepolizumab
  • palivizumab
  • reslizumab
  • dupilumab
  • potassium iodide
  • beclomethasone (nasal)
  • tetrahydrozoline nasal
  • fluticasone (topical)
  • tecovirimat
  • entacapone
  • vaccinia immune globulin intravenous (Rx)
  • smallpox (vaccinia) vaccine, live
  • terazosin
  • labetalol 
  • smallpox and monkeypox vaccine (live, nonreplicating) (US: Availability limited to health department/CDC expanded access protocol) (Rx)
  • oxymetazoline
  • xylometazoline
  • meclizine
  • prazosin
  • belinostat
  • nabilone
  • tripelennamine
  • bismuth subcitrate, metronidazole and tetracycline
  • levalbuterol
  • rifaximin
  • cotrimoxazole
  • ethacrynic acid
  • senna
  • bisacodyl
  • sodium picosulfate, citric acid, and magnesium oxide
  • kaolin
  • anastrozole
  • docusate
  • cascara
  • dichlorphenamide
  • bismuth subsalicylate
  • methylcellulose
  • magnesium sulfate 
  • talazoparib
  • diphenoxylate/atropine
  • bacillus clausii
  • psyllium
  • bifidobacterium
  • lactobacillus
  • saccharomyces boulardii
  • lanreotide
  • cyproterone
  • ramucirumab (Rx)
  • fidaxomicin
  • tobramycin (systemic)
  • dacomitinib
  • pembrolizumab
  • amikacin (systemic)
  • panitumumab
  • blinatumomab
  • durvalumab
  • olaratumab
  • necitumumab
  • moxetumomab pasudotox
  • mogamulizumab
  • inotuzumab
  • dinutuximab
  • pentamycin
  • dibekacin
  • cemiplimab
  • gemtuzumab
  • demeclocycline
  • omadacycline
  • tobramycin (ophthalmic)
  • sarecycline
  • cefiderocol
  • valrubicin
  • plicamycin
  • denileukin diftitox
  • decitabine
  • niraparib
  • methacholine
  • carbachol
  • bethanechol
  • acetylcholine
  • atezolizumab
  • raloxifene
  • avelumab
  • leucovorin
  • cladabrine
  • pralatrexate
  • meclofenamate
  • pemetrexed
  • ustekinumab
  • diroximel fumarate
  • daratumumab
  • coccidioidin skin test
  • candida albicans extract
  • brewer’s yeast
  • poliovirus vaccine, live, trivalent
  • elotuzumab
  • trimetrexate
  • l-methyl folate
  • methyclothiazide
  • Influenza virus vaccine
  • acitretin
  • tafamidis
  • sapropterin
  • Pidotimod
  • nitisinone
  • mipomersen
  • levetiracetam
  • Inebilizumab
  • Diethylamine salicylate
  • COVID-19 vaccine
  • Cephalothin
  • alitretinoin
  • Alitretinoin
  • methotrexate
  • verteporfin
  • omacetaxine
  • methyl aminolevulinate topical
  • efgartigimod alfa
  • aminolevulinic acid
  • cetuximab
  • streptozocin
  • zoster vaccine recombinant
  • lyme disease vaccine
  • human papillomavirus vaccine
  • daclizumab
  • lomustiine
  • amitriptyline
  • triptorelin
  • Tedizolid
  • rituximab
  • darolutamide
  • altretamine
  • Varicella-zoster vaccine
  • topotecan
  • ajmaline
  • pneumococcal vaccine
  • poliovirus vaccine
  • adenovirus vaccine type 7
  • adenovirus vaccine type 4
  • brincidofovir
  • lenograstim
  • ofatumumab
  • doxorubicin
  • thioguanine
  • tetanus toxoid
  • primidone
  • lipegfilgrastim
  • pegaspargase
  • monomethyl fumarate
  • ibritumomab
  • dimethyl fumarate
  • varicella-zoster vaccine (recombinant)
  • influenza virus vaccine, h5n1, live
  • carmustine
  • influenza virus vaccine (h5n1), adjuvanted
  • influenza a (h5n1) vaccine
  • eluxadoline
  • influenza virus vaccine quadrivalent, adjuvanted
  • idecabtagene vicleucel
  • adenovirus types 4 and 7 live, oral
  • thiotepa
  • tocilizumab
  • levodopa inhaled
  • efalizumab
  • canakinumab
  • aminoglutethimide
  • ado-trastuzumab emtansine
  • adenovirus vaccine
  • zoster vaccine live
  • typhoid vaccine, live
  • influenza virus vaccine, live, trivalent
  • influenza virus vaccine, h1n1, live
  • delavirdine
  • paclitaxel
  • siltuximab
  • miconazole
  • fludarabine
  • epirubicin
  • vinblastine
  • lomustine
  • risankizumab
  • rilonacept
  • pacritinib
  • linezolid
  • griseofulvin
  • vincristine
  • rufinamide
  • phenobarbital
  • nelarabine
  • mitoxantrone
  • mitomycin
  • mitapivat
  • letermovir
  • lasmiditan
  • idarubicin
  • filgrastim
  • elagolix
  • daunorubicin
  • daclatasvir
  • carfilzomib
  • anakinra
  • alefacept
  • thalidomide
  • teriflunomide
  • rubella virus vaccine
  • ozanimod
  • mumps virus vaccine
  • measles virus vaccine
  • golimumab
  • etanercept
  • certolizumab
  • adalimumab
  • etoposide
  • mechlorethamine
  • adenovirus type 7 vaccine
  • melphalan
  • palifermin
  • pimecrolimus
  • ropeginterferon alfa 2b
  • tacrolimus
  • tofacitinib
  • amphotericin B cholesteryl sulfate
  • amphotericin B deoxycholate
  • amphotericin B liposomal
  • amphotericin B phospholipid complex
  • anthrax vaccine adsorbed
  • denosumab
  • diphtheria & tetanus toxoids
  • echinacea
  • haemophilus influenzae type b vaccine
  • hepatitis A vaccine inactivated
  • hepatitis a/b vaccine
  • hepatitis b vaccine
  • HIV vaccine
  • human papillomavirus vaccine, quadrivalent
  • hydroxyurea
  • influenza virus vaccine (H5N1)
  • influenza virus vaccine trivalent
  • influenza virus vaccine trivalent, adjuvanted
  • influenza virus vaccine trivalent, recombinant
  • meningococcal A C Y and W-135 diphtheria conjugate vaccine
  • meningococcal A C Y and W-135 polysaccharide vaccine combined
  • meningococcal group B vaccine
  • ofatumumab SC
  • pneumococcal vaccine 13-valent
  • pneumococcal vaccine heptavalent
  • pneumococcal vaccine polyvalent
  • poliovirus vaccine inactivated
  • rabies vaccine
  • sipuleucel-T
  • trastuzumab
  • trastuzumab deruxtecan
  • eslicarbazepine acetate
  • vitamin A
  • rifampin
  • belzutifan
  • belimumab
  • belatacept
  • armodafinil
  • amobarbital
  • alemtuzumab
  • ocrelizumab
  • nivolumab
  • natalizumab
  • fingolimod
  • desogestrel
  • butalbital
  • brexanolone
  • zoster vaccine
  • yellow fever vaccine
  • varicella virus vaccine
  • smallpox vaccine
  • rotavirus vaccine
  • rubella vaccine
  • influenza virus vaccine quadrivalent
  • atracurium
  • dengue vaccine
  • tisagenlecleucel
  • lisocabtagene maraleucel
  • ciltacabtagene autoleucel
  • brexucabtagene autoleucel
  • axicabtagene ciloleucel
  • chlorambucil
  • ethinyl estradiol
  • dicumarol
  • atenolol
  • anisindione
  • penicillin G benzathine
  • sequelerin
  • chloramphenicol
  • heparin
  • enoxaparin
  • dalteparin
  • bivalirudin
  • argatroban
  • willow bark
  • bazedoxifene/conjugated estrogens
  • aspirin rectal
  • aspirin/citric acid/sodium bicarbonate
  • aspirin
  • ganaxolone
  • erythromycin stearate
  • erythromycin lactobionate
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propylthiouracil + 

chenodeoxycholic acid

They may diminish the serum concentration when combined with bile acid sequestrants

carbamazepine

they both increase the effect of each other when used simultaneously

clozapine

they both increase the effect of each other when used simultaneously 

methimazole

they both increase the effect of each other when used simultaneously

pexidartinib

they both increase the effect of each other when used simultaneously

pretomanid

they both increase the toxicity of each other when used simultaneously

ropeginterferon alfa b

they both increase the toxicity of each other when used simultaneously

methimazole

they both increase the effect of each other when used simultaneously

nortriptyline 

may increase the arrhythmogenic affect

lanthanum carbonate 

may diminish the serum concentration when combined with thyroid products

calcium carbonate

may decrease the serum concentration

magaldrate

may decrease the serum concentration

magnesium trisilicate

may decrease the serum concentration

omeprazole

may decrease the serum concentration

tiludronic acid

may decrease the serum concentration

estrogens esterified/methyltestosterone             

may decrease the therapeutic effect of estrogen derivatives

cadexomer iodine

they increase the effect of each other by pharmacodynamic synergism

iodinated glycerol

they increase the effect of each other by pharmacodynamic synergism

iodine

they increase the effect of each other by pharmacodynamic synergism

 

Dosage forms & Strengths 

Tablet 

50mg 

Hyperthyroidism And Thyrotoxicosis 

300-450 mg orally divided every 8 hours, depending on the severity of the condition
(A dose of 600-900 mg/day maybe required)
Maintenance dose- 100-150 mg orally divided every 8 hours
Thyrotoxic Crisis
(Off-label)
Initially 200-300 mg orally every 4-6 hours on 1st day
Reduce the dose gradually
Maintenance dose- 100-150 mg/day divided 2-3 times daily



Graves Disease 

Initially 50-150 mg orally every 8 hours
Maintenance dose- 50 mg orally 2-3 times daily, for 12-18 months
Taper the dose until euthyroid is attained



 

Dosage forms & Strengths: 

Tablet: 

50 mg 

Hyperthyroidism And Thyrotoxicosis 

Indicated in children for hyperthyroidism only
For neonates, less than 28 days old: 5-10 mg/kg orally divided 3 times daily
For <6 years: 5-7 mg/kg orally divided 3 times daily
For 6-10 years: 50-150 mg orally divided 3 times daily
For >10 years: 150-300 mg orally divided daily
Maintenance dose: Usually one to two third of the intial dose 2-3 times daily based on the response



 

Refer to the adult dosing 

Frequency not defined 

Agranulocytosis 

Aplastic anemia 

Hepatitis 

Polyarthritis 

Drowsiness 

Vertigo 

Alopecia 

Erythema nodosum 

Skin ulcers 

Goiter 

Weight gain 

Constipation 

Loss of taste 

Granulopenia 

Leukopenia 

Thrombocytopenia 

 

Black Box Warning: 

Severe liver injury and acute liver failure are rare but serious side effects of propylthiouracil, and patients taking this medication should be closely monitored for symptoms and signs of liver injury. The FDA recommends that healthcare providers measure liver function tests prior to initiating treatment with propylthiouracil and periodically thereafter, especially during the first six months of therapy. 

propylthiouracil should be reserved for those patients who cannot tolerate other treatments, such as methimazole, radioactive iodine, or surgery, due to the potential risk of liver injury. In pregnant women with hyperthyroidism, propylthiouracil may be the treatment of choice during the first trimester of pregnancy due to the strong association of methimazole with congenital malformations during this period. However, in later stages of pregnancy, methimazole is generally preferred due to a lower risk of liver injury in the mother. 

Contraindication/Caution: 

Contraindications: 

  • Known hypersensitivity to PTU or any of its components. 
  • Patients with a history of agranulocytosis (a severe blood disorder) or other blood dyscrasias related to PTU use. 

Precautions: 

  • Patients with liver disease or a history of liver injury, as PTU can cause severe liver damage. 
  • Patients with bone marrow depression or other blood disorders, as PTU can affect blood cell counts. 
  • Patients with autoimmune diseases, as PTU may exacerbate these conditions. 
  • PTU should be used with caution in pregnant women, particularly during the first trimester, as it can cross the placenta and affect fetal thyroid function. The medication should only be used if the benefits outweigh the risks. 
  • PTU can interact with other medications, such as warfarin and digoxin, and patients should be monitored closely for any potential drug interactions. 
  • PTU should be used with caution in patients with renal impairment, as it is excreted by the kidneys. 

Pregnancy consideration:  

Category D 

Breastfeeding warnings:  

Propylthiouracil is distributed in breastmilk and hence contraindicated during breastfeeding  

Pregnancy category: 

  • Category A: Satisfactory and well-controlled studies show no risk to the fetus in the first or later trimester. 
  • Category B: No evidence shown of risk to the fetus found in animal reproduction studies, and there are not enough studies on pregnant women    
  • Category C: Adverse effects on the fetus found with evidence in animal reproduction studies and no adequate evidence for a product in humans; Pregnant women must take care of the potential risks. 
  • Category D: There is adequate data available with sufficient evidence of human fetal risk from various platforms. However, despite potential dangers may be used only in emergency cases for potential benefits. 
  • Category X: Drugs listed in this category outweigh risks over benefits. The drug is not for pregnant women. 
  • Category N: No data is available for the drug under this category. 

Pharmacology: 

propylthiouracil (PTU) is an antithyroid medication used in the treatment of hyperthyroidism, which is the overactivity of the thyroid gland that leads to excessive thyroid hormone production. Here are some key points about the pharmacology of PTU: 

  • Mechanism of action: PTU inhibits the synthesis of thyroid hormones by blocking the iodination of thyroglobulin and the coupling of iodotyrosine residues. It also inhibits the conversion of thyroxine (T4) to triiodothyronine (T3) in peripheral tissues by blocking the enzyme 5′-deiodinase. 
  • Pharmacokinetics: PTU is rapidly absorbed after oral administration and reaches peak plasma levels within 30 minutes to 2 hours. The drug is extensively metabolized in the liver and excreted in the urine as metabolites. The half-life of PTU is about 1-2 hours, but the duration of its therapeutic effect is much longer due to the inhibition of thyroid hormone synthesis. 
  • Indications: PTU is used to treat hyperthyroidism, including Graves’ disease, toxic multinodular goiter, and thyroid storm. It is also sometimes used in preparation for thyroidectomy or radioactive iodine therapy. 
  • Dosage: The usual adult dose of PTU is 100-150 mg three times daily. The dose may be adjusted based on the patient’s response and thyroid function tests. 
  • Adverse effects: PTU can cause a variety of side effects, including skin rash, arthralgia, leukopenia, agranulocytosis, hepatotoxicity, and vasculitis. Patients taking PTU should be monitored closely for signs of these adverse effects, especially during the first few months of therapy. 
  • Drug interactions: PTU can interact with other medications, such as warfarin, which can increase the risk of bleeding. It can also enhance the effects of other antithyroid drugs, such as methimazole. 

Pharmacodynamics: 

The pharmacodynamics of PTU involve inhibition of both thyroid hormone synthesis and peripheral conversion, leading to a reduction in circulating levels of T4 and T3 and improvement in symptoms of hyperthyroidism. The slow onset and prolonged duration of action of the drug must be considered when managing patients with hyperthyroidism. 

Pharmacokinetics: 

Absorption 

The 75% of drug is absorbed 

Duration of action is 12-24 hours 

The half-life of elimination is 1-2 hours 

Distribution 

The volume of distribution is 0.4 L/kg 

The bound protein is 80-85% 

Peak plasma concentration is achieved in 1-2 hours 

The peak plasma concentration is 6-9 mcg/mL 

Metabolism 

The drug is metabolised in the liver, to glucuronide conjugates, sulfur metabolites, inorganic sulfates 

Elimination and Excretion 

The rate of total body clearance is 7 L/hr 

The drug is excreted 35% in urine

Administration: 

propylthiouracil (PTU) is an anti-thyroid medication used to treat hyperthyroidism, a condition where the thyroid gland produces too much thyroid hormone. PTU works by inhibiting the production of thyroid hormone by blocking the activity of an enzyme called thyroid peroxidase. 

PTU is usually taken orally in tablet form, and the dose and duration of treatment will depend on the individual patient’s condition and response to the medication. It is important to take the medication exactly as prescribed by the healthcare provider and not to stop taking it abruptly without medical advice, as this can cause a rebound increase in thyroid hormone levels. 

PTU can have several potential side effects, including nausea, vomiting, loss of appetite, headache, dizziness, rash, and joint pain. Rare but serious side effects can also occur, such as liver toxicity and a decrease in white blood cell count. Patients should be monitored closely for any signs of these side effects and advised to seek medical attention immediately if they occur. 

In addition, PTU should not be used during pregnancy unless the benefits outweigh the risks, as it can cross the placenta and potentially harm the developing fetus. It is also important to inform the healthcare provider of any other medications or supplements being taken, as they may interact with PTU and affect its effectiveness or increase the risk of side effects. 

Patient information leaflet 

Generic Name: propylthiouracil 

Pronounced: PRO-pil-THYE-oh-URE-a-sil 

Why do we use propylthiouracil? 

propylthiouracil (PTU) is used to treat hyperthyroidism, a condition where the thyroid gland produces too much thyroid hormone. Hyperthyroidism can be caused by various conditions, including Graves’ disease, toxic multinodular goiter, and toxic adenoma. 

PTU works by inhibiting the production of thyroid hormone by blocking the activity of an enzyme called thyroid peroxidase. This enzyme is required for the synthesis of thyroid hormone, and by inhibiting its activity, PTU reduces the amount of thyroid hormone produced by the thyroid gland. 

PTU is often used as a first-line treatment for hyperthyroidism, particularly in patients who cannot tolerate or have contraindications to other anti-thyroid medications like methimazole. PTU may also be used in combination with other medications or radioactive iodine therapy to achieve better control of hyperthyroidism. 

In addition to treating hyperthyroidism, PTU may also be used to prepare patients for thyroid surgery by reducing the size and activity of the thyroid gland before the procedure. 

ADVERTISEMENT 

propylthiouracil

Brand Name :

PTU

Synonyms :

propylthiouracil

Class :

Antithyroid agents




No data available for drug.

Dosage forms & Strengths 

Tablet 

50mg 

hyperthyroidism and Thyrotoxicosis 

300-450 mg orally divided every 8 hours, depending on the severity of the condition
(A dose of 600-900 mg/day maybe required)
Maintenance dose- 100-150 mg orally divided every 8 hours
Thyrotoxic Crisis
(Off-label)
Initially 200-300 mg orally every 4-6 hours on 1st day
Reduce the dose gradually
Maintenance dose- 100-150 mg/day divided 2-3 times daily



graves Disease 

Initially 50-150 mg orally every 8 hours
Maintenance dose- 50 mg orally 2-3 times daily, for 12-18 months
Taper the dose until euthyroid is attained



Dosage forms & Strengths: 

Tablet: 

50 mg 

hyperthyroidism and Thyrotoxicosis 

Indicated in children for hyperthyroidism only
For neonates, less than 28 days old: 5-10 mg/kg orally divided 3 times daily
For <6 years: 5-7 mg/kg orally divided 3 times daily
For 6-10 years: 50-150 mg orally divided 3 times daily
For >10 years: 150-300 mg orally divided daily
Maintenance dose: Usually one to two third of the intial dose 2-3 times daily based on the response



Refer to the adult dosing 

DRUG INTERACTION

propylthiouracil

&

  • interferon beta 1b
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  • metronidazole topical 
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  • ciprofloxacin/fluocinolone acetonide, otic
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  • betaine  
  • laronidase 
  • estrogens esterified/methyltestosterone            
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  • luspatercept
  • digoxin immune FAB (Antidote)
  • crotalidae immune FAB (equine)
  • magnesium (Antidote)
  • pyridoxine (Antidote)
  • edetate calcium disodium
  • albumin IV
  • nitroglycerin sublingual
  • obiltoxaximab
  • anthrax immune globulin
  • nitroglycerin topical
  • dextrose
  • nesiritide
  • estradiol vaginal
  • bazedoxifene/conjugated estrogens
  • botulism immune globulin iv
  • amoxicillin/omeprazole/rifabutin
  • synthetic human angiotensin II
  • nitroglycerin IV
  • nitroglycerin translingual
  • nitroprusside sodium
  • tetrahydrozoline/zinc sulfate/hypromellose ophthalmic
  • sodium citrate/citric acid
  • pemetrexate
  • methicillin
  • plasminogen 
  • acai
  • american ginseng
  • cordyceps
  • tramadol/acetaminophen
  • belladonna alkaloids/phenobarbital
  • erythromycin topical/benzoyl peroxide
  • glucosamine sulfate
  • panax ginseng (suppl/herb)
  • tolnaftate
  • sulopenem etzadroxil/probenecid (Pending FDA Approval)
  • sulfur hexafluoride
  • sotrovimab
  • arbaclofen
  • rifampin/isoniazid
  • clindamycin /tretinoin topical
  • benzoyl peroxide/clindamycin topical
  • apremilast
  • antivenins, centuroides (scorpion)
  • bamlanivimab and etesevimab
  • vilobelimab
  • gadobenate
  • pentosan polysulfate sodium
  • methylsalicylate/menthol/camphor topical
  • antivenin, black widow spider
  • benzoyl peroxide and hydrocortisone
  • clindamycin topical
  • isometheptene, dichloralphenazone and acetaminophen
  • acetaminophen and phenyltoloxamine
  • erythromycin topical
  • erythromycin ophthalmic
  • alpha hydroxy acids, topical
  • buprenorphine transdermal
  • butalbital/acetaminophen/caffeine
  • buprenorphine/samidorphan
  • buprenorphine subdermal implant
  • celecoxib/tramadol
  • drospirenone/ethinyl estradiol
  • resorcinol/sulfur
  • eflornithine
  • rifampin/isoniazid/pyrazinamide
  • tofersen
  • devil’s claw
  • ticarcillin/clavulanate
  • atropine/pralidoxime
  • aprepitant
  • suramin
  • phenelzine 
  • artichoke
  • american dogwood
  • attapulgite
  • atlantic cedar
  • axalimogene filolisbac
  • sodium thiosulfate & sodium nitrite
  • ataluren
  • omidubicel-onlv
  • capsicum
  • ginger
  • cryoprecipitate
  • bictegravir/emtricitabine/tenofovir DF
  • emtricitabine/tenofovir DF
  • fo-ti
  • siberian ginseng
  • granulocytes
  • zinc substituted heme C
  • zinc trihydroxide
  • ashwagandha 
  • cat’s claw
  • glandular products
  • SAMe
  • shark cartilage
  • altovis
  • feverfew
  • horse chestnut
  • magnesium aspartate
  • octacosanol
  • pleurisy root
  • star anise
  • butterbur
  • elderberry
  • licorice (Suppl/herb)
  • aconite
  • pentetate zinc trisodium
  • menthol topical/zinc oxide topical
  • corn-starch/kaolin/zinc oxide topical
  • 5-htp
  • butcher’s broom
  • articulin
  • bearberry
  • goldenrod
  • progesterone, natural
  • black cohosh
  • wild yam
  • cranberry
  • dong quai
  • phytoestrogens
  • norethindrone
  • false Unicorn Root
  • raspberry Leaf
  • asafoetida
  • turmeric
  • dehydroepiandrosterone (DHEA)
  • hyaluronan
  • aliskiren/amlodipine
  • octreotide (Antidote)
  • tranexamic acid injection
  • duocal
  • neocate infant formula
  • pediatric Eo28
  • aloe
  • red clover
  • propolis
  • androstenedione
  • heartsease
  • comfrey
  • bilberry
  • chamomile
  • eyebright
  • calendula
  • sage
  • yucca
  • polypody
  • odevixibat
  • vinpocetine
  • olanzapine/samidorphan
  • creatine
  • yerba mate
  • spesolimab
  • azficel-T
  • tiludronate
  • estetrol and drospirenone
  • pseudoephedrine/fexofenadine
  • lincomycin
  • neomycin oral
  • fluocinolone acetonide, otic
  • tretinoin/ hydroquinone/ fluocinolone
  • halobetasol topical
  • hydrocortisone/​iodoquinol
  • penicillin G procaine /penicillin G benzathine
  • hydrocortisone probutate topical
  • colistin/neomycin/hydrocortisone/thonzonium otic
  • ebola zaire vaccine
  • hepatitis a/​b vaccine
  • vibegron
  • lindane
  • nystatin topical
  • respiratory syncytial virus (RSV) vaccine
  • chikungunya vaccine
  • tenecteplase
  • reteplase
  • anthrax vaccine adsorbed, adjuvanted
  • meningococcal ABCWY pentavalent vaccine
  • eculizumab
  • cholestyramine
  • tinzaparin
  • taurolidine/​citrate/​heparin
  • protein C concentrate
  • antithrombin alfa
  • antithrombin III
  • multivitamins, vision
  • ibuprofen/​chlorpheniramine/​pseudoephedrine
  • acetaminophen/ibuprofen
  • ibuprofen/pseudoephedrine
  • paclitaxel protein-bound
  • acetic acid vaginal
  • acetic acid otic
  • hydrocodone/ ibuprofen
  • methyl salicylate / isopropanol/ citronellyl acetate/ citric acid
  • ibuprofen and phenylephrine
  • acetylcysteine (Antidote)
  • iron/​folic acid/​vitamin/​mineral
  • iobenguane I-131
  • dolutegravir/rilpivirine
  • chlorhexidine topical
  • chlorhexidine oral
  • thyroid desiccated
  • proparacaine ophthalmic
  • podophyllum resin
  • phendimetrazine
  • phenoxybenzamine
  • polidocanol
  • phentermine and topiramate
  • piflufolastat F18
  • piperacillin/tazobactam
  • prednisolone and gentamicin ophthalmic
  • promethazine and codeine
  • poractant alfa
  • protamine sulfate
  • aflibercept intravitreal
  • prednicarbate
  • promethazine/dextromethorphan
  • codeine, phenylephrine, and promethazine
  • potassium phosphate
  • glatiramer acetate
  • gentamicin (Ophthalmic)
  • leniolisib
  • rezafungin
  • fluorometholone
  • dalfampridine
  • hydrocortisone topical 
  • empagliflozin and linagliptin
  • triamcinolone topical
  • minocycline topical
  • minocycline dental
  • ketotifen ophthalmic
  • darunavir and cobicistat
  • lidocaine topical
  • neomycin/polymyxin B/bacitracin/lidocaine (OTC)
  • lidocaine/ hydrocortisone
  • lidocaine anesthetic
  • lidocaine ophthalmic
  • lidocaine/tetracaine
  • desonide
  • dabigatran
  • fexofenadine
  • fluoride
  • decitabine and cedazuridine
  • dasiglucagon
  • hydroxypropyl cellulose ophthalmic
  • epoetin alfa
  • ibritumomab tiuxetan
  • trimethobenzamide
  • dexamethasone/ tobramycin
  • tafasitamab
  • valacyclovir
  • mebendazole
  • levoleucovorin
  • flaxseed
  • germanium
  • glutathione
  • lycopene
  • pygeum
  • horseradish
  • ziv-aflibercept
  • micafungin
  • trofinetide
  • taliglucerase alfa
  • tildrakizumab
  • sulopenem (Pending FDA Approval)
  • thyrotropin alfa
  • birch
  • thrombin, topical
  • tivozanib
  • tafluprost
  • methohexital
  • urea and hydrocortisone
  • unoprostone ophthalmic
  • trihexyphenidyl
  • ezetimibe
  • evolocumab
  • trifluridine and tipiracil
  • methenamine
  • misoprostol
  • miltefosine
  • rimantadine
  • maralixibat
  • coenzyme Q10
  • chlorella
  • garlic
  • forskolin
  • zavegepant
  • menotropins
  • margetuximab
  • meprobamate
  • melarsoprol
  • evening primrose oil
  • lemongrass
  • molindone
  • fenugreek
  • phytosterols
  • red yeast rice
  • uridine triacetate
  • tropicamide
  • incobotulinumtoxinA
  • Grape Seed Extract
  • carbachol ophthalmic
  • cosyntropin
  • cyclopentolate and phenylephrine
  • carteolol ophthalmic
  • pentazocine/naloxone
  • pentazocine/acetaminophen
  • casimersen
  • carisoprodol, aspirin, and codeine
  • carisoprodol
  • carboprost tromethamine
  • flurandrenolide
  • brinzolamide/brimonidine
  • betamethasone topical
  • omaveloxolone
  • bardoxolone
  • allogeneic processed thymus tissue
  • fluocinolone topical
  • tacrolimus topical
  • ruxolitnib topical
  • pimecrolimus topical
  • sofosbuvir, velpatasvir and voxilaprevir
  • sofosbuvir/velpatasvir
  • mitotane
  • elbasvir/​grazoprevir
  • wheat dextrin
  • vanadium
  • iron/folic acid/vitamin/mineral
  • molybdenum
  • sparsentan
  • velmanase alfa-tycv
  • pegcetacoplan
  • ferrous sulfate
  • cyclosporine ophthalmic
  • ferric pyrophosphate
  • ammonium lactate
  • etelcalcetide
  • iodoquinol
  • sucroferric oxyhydroxide
  • doxercalciferol
  • terconazole vaginal
  • cortisone
  • pyronaridine
  • tetrahydrozoline, ophthalmic
  • tenapanor
  • tesamorelin
  • benazepril/hydrochlorothiazide
  • nadolol and bendroflumethiazide
  • spironolactone and hydrochlorothiazide
  • COVID-19 Vaccine, mRNA
  • atosiban
  • bisoprolol and hydrochlorothiazide
  • ephedrine/guaifenesin
  • clonidine/chlorthalidone
  • captopril/hydrochlorothiazide
  • amlodipine/valsartan/hydrochlorothiazide
  • hydrochlorothiazide and irbesartan
  • candesartan/hydrochlorothiazide
  • ciclesonide intranasal
  • cromolyn sodium ophthalmic
  • methyldopa/hydrochlorothiazide
  • valsartan/hydrochlorothiazide
  • hydrochlorothiazide and triamterene
  • moexipril/hydrochlorothiazide
  • mometasone/intranasal
  • ofloxacin ophthalmic
  • cysteamine
  • metoprolol/hydrochlorothiazide
  • amlodipine/olmesartan
  • eprosartan/hydrochlorothiazide
  • amlodipine/telmisartan
  • hydrochlorothiazide/aliskiren
  • betamethasone/clotrimazole
  • telmisartan/hydrochlorothiazide
  • benazepril/amlodipine
  • bezlotoxumab
  • propranolol/hydrochlorothiazide
  • bupropion/naltrexone
  • burosumab
  • acetylcholine chloride intraocular solution
  • bupivacaine and meloxicam
  • budesonide and formoterol (inhalation)
  • valerian
  • entacapone/levodopa/carbidopa
  • carbidopa/levodopa
  • calaspargase pegol
  • cabotegravir
  • cefixime
  • calfactant
  • brinzolamide
  • daprodustat
  • brimonidine and timolol
  • brodalumab
  • buprenorphine and naloxone
  • hydrocortisone acetic acid otic
  • butorphanol
  • butoconazole
  • adapalene and benzoyl peroxide
  • acrivastine and pseudoephedrine
  • neomycin/polymyxin B/bacitracin topical
  • midodrine
  • baloxavir marboxil
  • bacitracin, neomycin, polymyxin B, and hydrocortisone topical
  • avatrombopag
  • glucagon
  • atenolol/chlorthalidone
  • adefovir
  • activated charcoal
  • avalglucosidase alfa
  • aclidinium and formoterol
  • iclaprim (Pending FDA Approval)
  • ampicillin/sulbactam
  • quinupristin/dalfopristin
  • lamivudine/zidovudine/abacavir
  • acetaminophen and caffeine
  • acetaminophen/pamabrom
  • abacavir and lamivudine
  • anifrolumab
  • elacestrant
  • anidulafungin
  • acetohydroxamic acid
  • alogliptin/pioglitazone
  • anthralin
  • pirtobrutinib
  • gabapentin
  • galsulfase
  • gadoterate meglumine
  • ferric gluconate
  • ferric derisomaltose
  • ethanolamine oleate
  • eteplirsen
  • vasopressin
  • desmopressin
  • meropenem/vaborbactam
  • ecallantide
  • econazole topical
  • dornase alfa
  • aspirin/dipyridamole
  • dipyridamole
  • difenoxin and atropine
  • diflorasone
  • difluprednate ophthalmic
  • eptinezumab
  • diethylpropion
  • dexchlorpheniramine
  • dexmethylphenidate
  • serdexmethylphenidate/​dexmethylphenidate
  • bexagliflozin
  • galcanezumab
  • fremanezumab
  • tapinarof topical
  • darifenacin
  • dalbavancin
  • darbepoetin alfa
  • azilsartan
  • colestipol
  • corticorelin
  • crotamiton
  • crofelemer
  • allogeneic cultured keratinocytes/fibroblasts in bovine collagen
  • tapentadol
  • cyclopentolate
  • polymyxin B/bacitracin topical
  • ketoconazole topical
  • tavaborole
  • tagraxofusp
  • crisaborole
  • crizanlizumab
  • satralizumab
  • spinosad
  • sacubitril/valsartan
  • sargramostim
  • sebelipase alfa
  • regadenoson
  • ribociclib/letrozole
  • ragweed allergen extract
  • radium-223 dichloride
  • secnidazole
  • setmelanotide
  • polycarbophil
  • plecanatide
  • sacituzumab govitecan
  • pertuzumab
  • pertuzumab/trastuzumab/hyaluronidase
  • pamidronate
  • halcinonide
  • glecaprevir/​pibrentasvir
  • glucarpidase
  • golodirsen
  • dextrose (antidote)
  • hexaminolevulinate
  • iohexol
  • ferric citrate
  • elapegademase
  • emicizumab
  • erenumab
  • danaparoid
  • dantrolene
  • eflapegrastim
  • edaravone
  • amcinonide
  • carglumic acid
  • alcaftadine ophthalmic
  • agalsidase beta
  • afamelanotide
  • fosdenopterin
  • lidocaine and chlorhexidine
  • levorphanol
  • calcifediol
  • factor VIIa, recombinant
  • triheptanoin
  • peanut oral allergen powder
  • teprotumumab
  • poly-L-lactic acid/carboxymethylcellulose/mannitol
  • xenon Xe 129 hyperpolarized
  • ublituximab
  • anacaulase
  • glatiramer
  • peginterferon beta-1a
  • interferon beta-1a
  • onabotulinumtoxinA
  • cycloserine
  • ethionamide
  • cabotegravir and rilpivirine
  • vericiguat
  • omidenepag isopropyl
  • azelastine/fluticasone intranasal
  • benzyl peroxide
  • vutrisiran
  • brimonidine
  • testosterone topical
  • lenacapavir
  • tebentafusp
  • mosunetuzumab
  • faricimab
  • ganirelix
  • nadofaragene firadenovec
  • ozenoxacin
  • guaifenesin
  • adagrasib
  • guselkumab
  • adalimumab-aacf
  • nonoxynol-9
  • nifurtimox
  • nusinersen
  • nitazoxanide
  • mavacamten
  • calcipotriene
  • bimatoprost
  • obinutuzumab
  • amifostine
  • oxycodone/​aspirin
  • oxycodone/ibuprofen
  • oteseconazole
  • oxychlorosene
  • porfimer
  • pramoxine /hydrocortisone topical
  • podofilox
  • quinapril/hydrochlorothiazide
  • acetaminophen/pamabrom/pyrilamine
  • levobunolol
  • paregoric
  • idursulfase
  • lesinurad and allopurinol
  • latanoprost/​netarsudil ophthalmic
  • lactase enzyme
  • bioadherent oral
  • latanoprost and timolol
  • latanoprostene bunod
  • ledipasvir/sofosbuvir
  • imipenem/cilastatin/relebactam
  • imipenem/cilastatin
  • hemin
  • deucravacitinib
  • house dust mite allergen extract
  • halobetasol topical/tazarotene
  • remimazolam
  • somatropin
  • remifentanil
  • ethotoin
  • etidronate
  • empagliflozin, linagliptin, and metformin
  • elvitegravir/cobicistat/emtricitabine/tenofovir AF
  • empagliflozin/​linagliptin
  • evinacumab
  • finasteride and tadalafil
  • flortaucipir (18F)
  • proparacaine/ fluorescein ophthalmic
  • fluorescein/benoxinate ophthalmic
  • fluphenazine
  • alogliptin/​metformin
  • alogliptin/pioglitazone
  • alitretinoin topical
  • dextrose/ sodium citrate/fructose
  • dasabuvir
  • ombitasvir​/paritaprevir/​ritonavir
  • hydrocodone/​chlorpheniramine/​pseudoephedrine
  • hydroxyamphetamine/​tropicamide
  • acamprosate
  • gadobutrol
  • teclistamab
  • tremelimumab
  • futibatinib
  • etranacogene dezaparvovec
  • olutasidenib
  • naproxen and diphenhydramine
  • naratriptan
  • gadopiclenol
  • gadoxetate
  • gadoversetamide
  • naphazoline/pheniramine
  • naphazoline
  • nalbuphine
  • vosoritide
  • vitamin K1 (phytonadione)
  • moxidectin
  • basiliximab
  • fecal microbiota, live-jslm
  • ibuprofen/famotidine
  • famotidine
  • raxibacumab
  • omalizumab
  • measles, mumps, rubella, and varicella vaccine, live (Rx)
  • senna/docusate
  • dinoprostone
  • measles mumps and rubella vaccine, live
  • immune globulin IM (IGIM)
  • dyclonine
  • doravirine, lamivudine, and tenofovir disoproxil fumarate
  • elexacaftor/tezacaftor/ivacaftor
  • ivacaftor/tezacaftor
  • treosulfan
  • tranexamic acid
  • norethindrone acetate/​estradiol/​elagolix
  • artesunate
  • trientine
  • trifarotene
  • ziconotide
  • vonoprazan/amoxicillin/clarithromycin
  • pyrithione zinc
  • zinc oxide topical
  • naphazoline/​zinc sulfate/​glycerin ophthalmic
  • voretigene neparvovec
  • nirmatrelvir/ritonavir
  • bebetelovimab
  • sodium chloride
  • relugolix/​estradiol/​norethindrone
  • defibrotide
  • prothionamide
  • liraglutide
  • etilfrine
  • alpha-lipoic acid
  • ramosetron
  • olodaterol/tritropium
  • cimetropium
  • umeclidinium
  • itopride
  • secretin
  • naftopidil
  • trimeprazine
  • benperidol
  • chlormethiazole
  • multivitamins
  • secukinumab
  • glycopyrrolate inhaled and formoterol
  • amitriptyline and chlordiazepoxide
  • tirzepatide
  • relugolix/estradiol/norethindrone
  • mupirocin
  • alvimopan
  • chlordiazepoxide
  • insulin regular human
  • insulin aspart protamine/​insulin aspart
  • insulin isophane human/​insulin regular human
  • insulin degludec/insulin aspart
  • teplizumab
  • chlordiazepoxide/clidinium
  • aspirin, sodium bicarbonate, and citric acid
  • aluminum hydroxide, magnesium hydroxide, and simethicone
  • glycopyrrolate inhaled
  • olodaterol/tiotropium
  • umeclidinium bromide
  • timolol/dorzolamide
  • travoprost ophthalmic
  • loxapine
  • eptifibatide
  • hydrocodone/acetaminophen
  • omega 3 fatty acids
  • trandolapril/​verapamil
  • abciximab
  • artificial saliva
  • diphtheria, hepatitis B, pertussis (acellular), polio, and tetanus vaccine
  • diphtheria, haemophilus B, pertussis, polio, tetanus vaccine
  • haemophilus influenzae type b vaccine/hepatitis b vaccine
  • butalbital/aspirin/caffeine 
  • colchicine/probenecid
  • atovaquone and proguanil
  • ursodiol
  • chenodiol
  • casirivimab/imdevimab
  • tixagevimab/cilgavimab
  • molnupiravir
  • bebtelovimab
  • calcium, magnesium, potassium and sodium oxybate
  • sodium oxybate
  • diphtheria, polio, pertussis acellular, tetanus vaccine
  • pseudoephedrine loratadine
  • sodium chloride nasal
  • hydroxychloroquine sulfate
  • atorvastatin and ezetimibe
  • teriparatide
  • alendronate and cholecalciferol
  • alprostadil (IV)
  • romosozumab
  • risedronate
  • alendronate
  • glyburide/metformin
  • clorazepate
  • rosuvastatin/​ezetimibe
  • paclitaxel/encequidar
  • valsartan/amlodipine
  • enalapril/hydrochlorothiazide
  • enalapril and felodipine
  • amiloride/hydrochlorothiazide
  • triamterene/hydrochlorothiazide
  • lisinopril/hydrochlorothiazide
  • tegaserod
  • rhein
  • ritanserin
  • sulfaphenazole
  • sulconazole
  • taurursodiol
  • bromeperidol
  • carbapenems
  • fotemustine
  • difelikefalin
  • bromopride
  • alizapride
  • olopatadine
  • oxomemazine
  • paraldehyde
  • oxcarbazepine
  • kratom
  • elexacaftor
  • oritavancin
  • miocamycin
  • curcumin sulfate
  • seproxetine
  • clotrimazole
  • remacemide
  • piperine
  • ditiocarb
  • danoprevir
  • oxetacaine
  • topiroxostat
  • indisulam
  • tofisopam
  • noscapine
  • thiopental
  • tioconazole
  • nicotinamide
  • rutin
  • mequitazine
  • somatostatin
  • vapreotide
  • econazole
  • saracatinib
  • lestaurtinib
  • efonidipine
  • zimelidine
  • indalpine
  • desvenlafaxine
  • benidipine
  • dapoxetine
  • tesmilifene
  • pergolide
  • sitaxentan
  • resveratrol
  • bifonazole
  • tildipirosin
  • solithromycin
  • selamectin
  • imiquimod topical
  • fluorouracil topical
  • peginterferon alfa-2b
  • interferon alfa-2b
  • alteplase
  • tanshinone I
  • rosmarinic acid
  • caryophyllene
  • ursolic acid
  • cepharanthine
  • veliflapon
  • mirikizumab
  • cp-96345
  • famprofazone
  • peoniflorin
  • fepradinol
  • licofelone
  • polmacoxib
  • ebselen
  • taxifolin
  • betulinic acid
  • flurbiprofen axetil
  • talniflumate
  • morniflumate
  • nitroaspirin
  • firocoxib
  • ns-398
  • cimicoxib
  • robenacoxib
  • sc-236
  • imidazole salicylate
  • trolamine salicylate
  • pirprofen
  • benorilate
  • ethenzamide
  • mofebutazone
  • proquazone
  • carbaspirin calcium
  • guacetisal
  • proglumetacin
  • propyphenazone
  • pranoprofen
  • bendazac
  • tenidap
  • lonazolac
  • nifenazone
  • flunoxaprofen
  • difenpiramide
  • feprazone
  • bufexamac
  • alminoprofen
  • suxibuzone
  • fentiazac
  • tinoridine
  • tepoxalin
  • indobufen
  • flunixin
  • propacetamol
  • clonixin
  • droxicam
  • epirizole
  • etofenamate
  • ibuproxam
  • indoprofen
  • kebuzone
  • felbinac
  • zaltoprofen
  • azapropazone
  • zomepirac
  • niflumic acid
  • magnesium salicylate
  • suprofen
  • nepafenac
  • bromfenac
  • ciprofloxacin and hydrocortisone (otic) (Rx)
  • hydrocortisone/neomycin/polymyxin otic (Rx)
  • vigabatrine
  • valproate
  • tezepelumab (Rx)
  • triamcinolone acetonide/nystatin
  • triamcinolone suprachoroidal (Rx)
  • triamcinolone, intranasal
  • ciclesonide inhaled
  • diosmin
  • tirbanibulin
  • padeliporfin
  • roxadustat
  • aminosalicylic acid
  • rasburicase
  • tetracaine
  • articaine
  • ropivacaine
  • nitrous oxide
  • sulfapyridine
  • sulfanilamide
  • mafenide
  • isometheptene
  • amyl nitrite
  • antipyrine
  • isosorbide dinitrate
  • prilocaine
  • nitroglycerin
  • tobacco
  • batefenterol
  • hexoprenaline
  • pf-00610355
  • racepinephrine
  • protokylol
  • doxofylline
  • phenylpropanolamine
  • isoetharine
  • ephedra sinica root
  • dipivefrin
  • arbutamine
  • norepinephrine
  • fenoterol
  • clenbuterol
  • pirbuterol
  • epinephrine
  • ritodrine
  • procaterol
  • orciprenaline
  • bitolterol
  • abediterol
  • fluticasone furoate, umeclidinium and vilanterol
  • fluticasone furoate and vilanterol
  • mometasone and formoterol
  • pramoxine topical (OTC)
  • menthol/pramoxine (topical)
  • tetrastarch
  • plasma protein fraction
  • hetastarch
  • rokitamycin
  • ridaforolimus
  • oleandomycin
  • patupilone
  • mitemcinal
  • midecamycin
  • mirvetuximab soravtansine
  • lorvotuzumab mertansine
  • kitasamycin
  • flurithromycin
  • eprinomectin
  • epofolate
  • epothilone D
  • coltuximab ravtansine
  • dirithromycin
  • doramectin
  • cethromycin
  • carbomycin
  • paramethasone
  • dexamethasone isonicotinate
  • quinupristin
  • sarilumab
  • dalfopristin
  • curcumin
  • luliconazole
  • procaine
  • chloroprocaine
  • phencyclidine
  • tenocyclidine
  • profenamine
  • halothane
  • lfenprodil
  • calcium levulinate
  • agmatine
  • calcium pangamate
  • calcium glubionate
  • edodekin alfa
  • beloranib
  • aflibercept
  • endostar
  • volociximab
  • roquinimex
  • anecortave acetate
  • squalamine
  • brolucizumab
  • trebananib
  • semaxanib
  • endostatin
  • halofuginone
  • resveratol
  • ranibizumab
  • fumagilin
  • bevacizumab
  • hyperforin
  • aminohippuric acid
  • opicapone
  • pafolacianine
  • bempedoic acid
  • belantamab mafodotin
  • prasterone
  • glecaprevir
  • levomenol
  • parachlorophenol
  • gadoxetic acid
  • cholecystokinin
  • caspofungin
  • ouabain
  • rifampicin
  • taurocholic acid
  • methylphosphinic acid
  • revefenacin
  • isoprenaline
  • posiphen
  • acotiamide
  • triflupromazine
  • pegvisomant
  • pipecuronium
  • regramostim
  • phenserine
  • diethylcarbamazine
  • cinchocaine
  • pancuronium
  • bambuterol
  • hexafluronium
  • aprotinin
  • tyrothricin
  • decamethonium
  • ipidacrine
  • tubocurarine
  • paraoxon
  • ginkgo biloba
  • methanesulfonyl fluoride
  • dichlorvos
  • fenthion
  • metrifonate
  • coumaphos
  • huperzine A
  • distigmine
  • neostigmine
  • isoflurophate
  • tasosartan
  • fimasartan
  • methylthioninium
  • minaprine
  • gallamine triethiodide
  • ambenonium
  • abiraterone
  • mibefradil
  • hydrocortisone (systemic)
  • cetirizine (systemic)
  • Talimogene Laherparepvec
  • Diacerein
  • Magnesium glucoheptonate
  • acyclovir and hydrocortisone
  • acyclovir (ophthalmic)
  • acyclovir (topical)
  • docosanol cream
  • camphor and phenol
  • dolutegravir, abacavir, and lamivudine
  • peramivir
  • lisdexamfetamine
  • ergoloid mesylates
  • memantine/donepezil
  • tranylcypromine
  • isocarboxazid
  • methenamine/sodium salicylate/benzoic acid
  • mometasone topical (Rx)
  • Esketamine intranasal
  • Oracit
  • Shohls Solution
  • sodium lactate
  • sodium citrate
  • lecanemab
  • donepezil (Rx)
  • donepezil transdermal
  • sodium thiosulfate
  • ciclopirox
  • undecylenic acid
  • butenafine
  • calcium and vitamin D
  • zoledronic acid
  • calcitonin salmon
  • pizotifen
  • indoramin
  • salicylic acid acne
  • minoxidil topical
  • adapalene
  • orlistat
  • COVID-19 subunit vaccine
  • amoxicillin /vonoprazan
  • levamlodipine (Rx)
  • Omeprazole, amoxicillin, and clarithromycin
  • simvastatin/ezetimibe
  • amlodipine/atorvastatin
  • amoxicillin and clavulanate potassium
  • lansoprazole, amoxicillin, and clarithromycin
  • noradrenaline
  • carbaryl
  • botulinum toxin
  • atropine
  • artemether/lumefantrine
  • ergonovine
  • bunazosin (Not available in the United States)
  • ibalizumab
  • dolutegravir
  • hydrocodone/pseudoephedrine
  • cetirizine/pseudoephedrine
  • acetaminophen/dextromethorphan/pseudoephedrine/guaifenesin
  • acetaminophen IV/ibuprofen IV (Pending FDA Approval)
  • medroxyprogesterone
  • acetaminophen/caffeine
  • Acetaminophen/magnesium salicylate/pamabrom
  • megestrol
  • pyridoxine (vitamin B6)
  • folic acid-cyanocobalamin-pyridoxine
  • L-methylfolate-pyridoxal 5′-phosphate-methylcobalamine
  • estropipate
  • betamethasone (systemic)
  • dolutegravir and lamivudine
  • zidovudine and lamivudine
  • mineral oil (oral/rectal)
  • regular insulin
  • dextromethorphan/bupropion
  • diphenhydramine/ibuprofen
  • enfuvirtide
  • doxapram
  • methamphetamine
  • dextroamphetamine
  • ephedrine
  • brompheniramine, dextromethorphan and phenylephrine
  • aspirin, chlorpheniramine, and phenylephrine
  • acetaminophen, pheniramine, and phenylephrine
  • chlorpheniramine and phenylephrine
  • guaifenesin and phenylephrine
  • rivastigmine
  • pyridostigmine
  • arecoline
  • physostigmine
  • abobotulinumtoxinA
  • echothiophate iodide
  • malathion
  • glibenclamide
  • rimabotulinumtoxinB
  • pioglitazone
  • daxibotulinumtoxinA
  • prabotulinumtoxinA
  • mepenzolate
  • trospium
  • modafinil
  • budesonide (oral inhalation)
  • budesonide (nasal)
  • budesonide (Topical)
  • vedolizumab
  • hydrocodone and homatropine
  • homatropine ophthalmic
  • methscopolamine
  • oxandrolone
  • nandrolone
  • fluoxymesterone
  • procyclidine
  • biperiden
  • benztropine
  • oxymetholone
  • ipratropium
  • belladonna/opium
  • pilocarpine
  • nicotine intranasal
  • succinylcholine
  • cromolyn sodium
  • mepolizumab
  • palivizumab
  • reslizumab
  • dupilumab
  • potassium iodide
  • beclomethasone (nasal)
  • tetrahydrozoline nasal
  • fluticasone (topical)
  • tecovirimat
  • entacapone
  • vaccinia immune globulin intravenous (Rx)
  • smallpox (vaccinia) vaccine, live
  • terazosin
  • labetalol 
  • smallpox and monkeypox vaccine (live, nonreplicating) (US: Availability limited to health department/CDC expanded access protocol) (Rx)
  • oxymetazoline
  • xylometazoline
  • meclizine
  • prazosin
  • belinostat
  • nabilone
  • tripelennamine
  • bismuth subcitrate, metronidazole and tetracycline
  • levalbuterol
  • rifaximin
  • cotrimoxazole
  • ethacrynic acid
  • senna
  • bisacodyl
  • sodium picosulfate, citric acid, and magnesium oxide
  • kaolin
  • anastrozole
  • docusate
  • cascara
  • dichlorphenamide
  • bismuth subsalicylate
  • methylcellulose
  • magnesium sulfate 
  • talazoparib
  • diphenoxylate/atropine
  • bacillus clausii
  • psyllium
  • bifidobacterium
  • lactobacillus
  • saccharomyces boulardii
  • lanreotide
  • cyproterone
  • ramucirumab (Rx)
  • fidaxomicin
  • tobramycin (systemic)
  • dacomitinib
  • pembrolizumab
  • amikacin (systemic)
  • panitumumab
  • blinatumomab
  • durvalumab
  • olaratumab
  • necitumumab
  • moxetumomab pasudotox
  • mogamulizumab
  • inotuzumab
  • dinutuximab
  • pentamycin
  • dibekacin
  • cemiplimab
  • gemtuzumab
  • demeclocycline
  • omadacycline
  • tobramycin (ophthalmic)
  • sarecycline
  • cefiderocol
  • valrubicin
  • plicamycin
  • denileukin diftitox
  • decitabine
  • niraparib
  • methacholine
  • carbachol
  • bethanechol
  • acetylcholine
  • atezolizumab
  • raloxifene
  • avelumab
  • leucovorin
  • cladabrine
  • pralatrexate
  • meclofenamate
  • pemetrexed
  • ustekinumab
  • diroximel fumarate
  • daratumumab
  • coccidioidin skin test
  • candida albicans extract
  • brewer’s yeast
  • poliovirus vaccine, live, trivalent
  • elotuzumab
  • trimetrexate
  • l-methyl folate
  • methyclothiazide
  • Influenza virus vaccine
  • acitretin
  • tafamidis
  • sapropterin
  • Pidotimod
  • nitisinone
  • mipomersen
  • levetiracetam
  • Inebilizumab
  • Diethylamine salicylate
  • COVID-19 vaccine
  • Cephalothin
  • alitretinoin
  • Alitretinoin
  • methotrexate
  • verteporfin
  • omacetaxine
  • methyl aminolevulinate topical
  • efgartigimod alfa
  • aminolevulinic acid
  • cetuximab
  • streptozocin
  • zoster vaccine recombinant
  • lyme disease vaccine
  • human papillomavirus vaccine
  • daclizumab
  • lomustiine
  • amitriptyline
  • triptorelin
  • Tedizolid
  • rituximab
  • darolutamide
  • altretamine
  • Varicella-zoster vaccine
  • topotecan
  • ajmaline
  • pneumococcal vaccine
  • poliovirus vaccine
  • adenovirus vaccine type 7
  • adenovirus vaccine type 4
  • brincidofovir
  • lenograstim
  • ofatumumab
  • doxorubicin
  • thioguanine
  • tetanus toxoid
  • primidone
  • lipegfilgrastim
  • pegaspargase
  • monomethyl fumarate
  • ibritumomab
  • dimethyl fumarate
  • varicella-zoster vaccine (recombinant)
  • influenza virus vaccine, h5n1, live
  • carmustine
  • influenza virus vaccine (h5n1), adjuvanted
  • influenza a (h5n1) vaccine
  • eluxadoline
  • influenza virus vaccine quadrivalent, adjuvanted
  • idecabtagene vicleucel
  • adenovirus types 4 and 7 live, oral
  • thiotepa
  • tocilizumab
  • levodopa inhaled
  • efalizumab
  • canakinumab
  • aminoglutethimide
  • ado-trastuzumab emtansine
  • adenovirus vaccine
  • zoster vaccine live
  • typhoid vaccine, live
  • influenza virus vaccine, live, trivalent
  • influenza virus vaccine, h1n1, live
  • delavirdine
  • paclitaxel
  • siltuximab
  • miconazole
  • fludarabine
  • epirubicin
  • vinblastine
  • lomustine
  • risankizumab
  • rilonacept
  • pacritinib
  • linezolid
  • griseofulvin
  • vincristine
  • rufinamide
  • phenobarbital
  • nelarabine
  • mitoxantrone
  • mitomycin
  • mitapivat
  • letermovir
  • lasmiditan
  • idarubicin
  • filgrastim
  • elagolix
  • daunorubicin
  • daclatasvir
  • carfilzomib
  • anakinra
  • alefacept
  • thalidomide
  • teriflunomide
  • rubella virus vaccine
  • ozanimod
  • mumps virus vaccine
  • measles virus vaccine
  • golimumab
  • etanercept
  • certolizumab
  • adalimumab
  • etoposide
  • mechlorethamine
  • adenovirus type 7 vaccine
  • melphalan
  • palifermin
  • pimecrolimus
  • ropeginterferon alfa 2b
  • tacrolimus
  • tofacitinib
  • amphotericin B cholesteryl sulfate
  • amphotericin B deoxycholate
  • amphotericin B liposomal
  • amphotericin B phospholipid complex
  • anthrax vaccine adsorbed
  • denosumab
  • diphtheria & tetanus toxoids
  • echinacea
  • haemophilus influenzae type b vaccine
  • hepatitis A vaccine inactivated
  • hepatitis a/b vaccine
  • hepatitis b vaccine
  • HIV vaccine
  • human papillomavirus vaccine, quadrivalent
  • hydroxyurea
  • influenza virus vaccine (H5N1)
  • influenza virus vaccine trivalent
  • influenza virus vaccine trivalent, adjuvanted
  • influenza virus vaccine trivalent, recombinant
  • meningococcal A C Y and W-135 diphtheria conjugate vaccine
  • meningococcal A C Y and W-135 polysaccharide vaccine combined
  • meningococcal group B vaccine
  • ofatumumab SC
  • pneumococcal vaccine 13-valent
  • pneumococcal vaccine heptavalent
  • pneumococcal vaccine polyvalent
  • poliovirus vaccine inactivated
  • rabies vaccine
  • sipuleucel-T
  • trastuzumab
  • trastuzumab deruxtecan
  • eslicarbazepine acetate
  • vitamin A
  • rifampin
  • belzutifan
  • belimumab
  • belatacept
  • armodafinil
  • amobarbital
  • alemtuzumab
  • ocrelizumab
  • nivolumab
  • natalizumab
  • fingolimod
  • desogestrel
  • butalbital
  • brexanolone
  • zoster vaccine
  • yellow fever vaccine
  • varicella virus vaccine
  • smallpox vaccine
  • rotavirus vaccine
  • rubella vaccine
  • influenza virus vaccine quadrivalent
  • atracurium
  • dengue vaccine
  • tisagenlecleucel
  • lisocabtagene maraleucel
  • ciltacabtagene autoleucel
  • brexucabtagene autoleucel
  • axicabtagene ciloleucel
  • chlorambucil
  • ethinyl estradiol
  • dicumarol
  • atenolol
  • anisindione
  • penicillin G benzathine
  • sequelerin
  • chloramphenicol
  • heparin
  • enoxaparin
  • dalteparin
  • bivalirudin
  • argatroban
  • willow bark
  • bazedoxifene/conjugated estrogens
  • aspirin rectal
  • aspirin/citric acid/sodium bicarbonate
  • aspirin
  • ganaxolone
  • erythromycin stearate
  • erythromycin lactobionate
  • erythromycin ethylsuccinate
  • elbasvir/grazoprevir
  • daridorexant
  • cholera vaccine
  • lumacaftor/ivacaftor
  • dienogest/estradiol valerate
  • zafirlukast
  • urofollitropin
  • tralokinumab
  • torsemide
  • tazarotene
  • pseudoephedrine
  • propoxiphene napsylate
  • propoxiphene hydrochloride
  • oxyphencyclimine hydrochloride
  • oxymetazoline hydrochloride
  • naxitamab
  • nandrolone decanoate
  • methylphenidate
  • methocarbamol
  • idoxuridine
  • hyaluronidase
  • hyaluronic acid
  • gonadoreline hydrochloride
  • glycopyrrolate
  • ganirelix acetate
  • gallium citrate
  • fulvestrant
  • fexofenadine hydrochloride
  • fenefluramine hydrochloride
  • febuxostat
  • famciclovir
  • ergocalciferol
  • divalproex sodium
  • diclorfenamide
  • dezocine
  • desmopressin acetate
  • demeclocycline hydrochloride
  • defibrotide sodium
  • deferiprone
  • deferasirox
  • daunorubicin hydrochloride
  • darunavir
  • darifenacin hydrobromide
  • daptomycin
  • dapsone
  • dantrolene sodium
  • danazol
  • dalafampridine
  • dalbavancin Hydrochloride
  • daclatasvir dihydrochloride
  • dactinomycin
  • dacitabine
  • cefiderocol sulfate tosylate
  • butoconazole nitrate
  • benralizumab (Rx)
  • albuterol
  • acetylcysteine
  • acebutolol
  • acam2000
  • abrocitinib
  • abatacept
  • abametapir
  • abaloparatide
  • chloroquine
  • ferric maltol
  • lorlatinib
  • piracetam
  • timolol
  • chlorothiazide
  • ferric pyrophosphate citrate
  • lornoxicam
  • piretanide
  • tinidazole
  • chloroxylenol
  • ferric sulfate
  • lorpiprazole
  • pirfenidone
  • tiopronin
  • chlorpheniramine
  • ferrous bisglycinate
  • losartan
  • piroxicam
  • tiotropium
  • chlorpromazine
  • ferrous fumarate
  • lovastatin
  • pitavastatin
  • tipranavir
  • chlorpropamide
  • ferrous gluconate
  • loxoprofen
  • pitolisant
  • tirofiban
  • chlorprothixene
  • ferrous succinate
  • lubiprostone
  • pivampicillin
  • tisotumab vedotin
  • chlorthalidone
  • ferrous sulfate anhydrous
  • lumateperone
  • pivmecillinam
  • tixocortol
  • chlorzoxazone
  • ferumoxides
  • lumefantrine
  • plazomicin
  • tizanidine
  • abiraterone
  • cholecalciferolc
  • ferumoxsil
  • lumiracoxib
  • plerixafor
  • tobramycin (oral inhalation)
  • acalabrutinib
  • choline c 11
  • ferumoxytol
  • lurasidone
  • polatuzumab vedotin
  • tocainide
  • acarbose
  • choline magnesium trisalicylate
  • fesoterodine
  • lurbinectedin
  • polythiazide
  • tocofersolan
  • aceclofenac
  • choline salicylate
  • fexinidazole
  • lynestrenol
  • pomalidomide
  • tocopherol
  • acemetacin
  • chondroitin sulfate
  • finasteride
  • macimorelin
  • ponatinib
  • acenocoumarol
  • chromic chloride
  • finerenone (Rx)
  • macitentan
  • ponesimod
  • tolazamide
  • acetaminophen
  • chromic nitrate
  • fish oil
  • magaldrate
  • posaconazole
  • tolbutamide
  • acetazolamide
  • chromium
  • flavoxate
  • magnesium
  • potassium
  • tolcapone
  • acetohexamide
  • chromium gluconate
  • flecainide
  • magnesium carbonate
  • potassium acetate
  • tolfenamic acid
  • acetylsalicylic acid
  • chromium nicotinate
  • flibanserin
  • magnesium chloride
  • potassium bicarbonate
  • tolmetin
  • acipimox
  • chromous sulfate
  • floctafenine
  • magnesium citrate
  • potassium cation
  • tolterodine
  • aclidinium
  • ciclesonide
  • florbetaben (18f)
  • magnesium gluconate
  • potassium chloride
  • tolvaptan
  • acrivastine
  • cidofovir
  • florbetapir (18f)
  • magnesium hydroxide
  • potassium citrate
  • topiramate
  • acyclovir
  • cilazapril
  • floxuridine
  • magnesium oxide
  • potassium nitrate
  • adefovir dipivoxil
  • cilostazol
  • flucloxacillin
  • magnesium silicate
  • potassium perchlorate
  • torasemide
  • adenosine
  • cimetidine
  • fluconazole
  • potassium sulfate
  • toremifene
  • agomelatine
  • cinacalcet
  • flucytosine
  • magnesium trisilicate
  • tositumomab
  • albendazole
  • cinnarizine
  • fludeoxyglucose (18f)
  • mangafodipir
  • pralidoxime
  • trabectedin
  • albiglutide
  • cinoxacin
  • fludrocortisone
  • manidipine
  • pralsetinib
  • tramadol
  • albutrepenonacog alfa
  • ciprofibrate
  • fluindione
  • mannitol
  • pramipexole
  • trametinib
  • alclofenac
  • cisapride
  • flumazenil
  • maprotiline
  • pramlintide
  • trandolapril
  • aldesleukin
  • cisplatin
  • flumethasone
  • maraviroc
  • prasugrel
  • trastuzumab emtansine
  • alectinib
  • citalopram
  • flunarizine
  • maribavir
  • pravastatin
  • trazodone
  • alendronic acid
  • cladribine
  • flunisolide
  • mebeverine
  • prazepamb
  • treprostinil
  • alfentanil
  • clarithromycin
  • flunitrazepam
  • mecamylamine
  • praziquantel
  • tretinoin
  • alfuzosin
  • clemastine
  • fluocinolone acetonide
  • mecasermin
  • prednisolone
  • triamcinolone
  • alimemazine
  • clevidipine
  • fluocinonide
  • meclofenamic acid
  • prednisolone acetate
  • triamterene
  • aliskiren
  • clindamycin
  • fluocortolone
  • medrogestone
  • prednisolone phosphate
  • triazolam
  • allopurinol
  • clobazam
  • fluorouracil
  • medroxyprogesterone acetate
  • prednisone (Rx)
  • trichlormethiazide
  • almasilate
  • clobetasol propionate
  • fluoxetine
  • mefenamic acid
  • prednisone acetate
  • triclabendazole
  • almotriptan
  • clofarabine
  • flupentixol
  • mefloquine
  • pregabalin
  • triethylenetetramine
  • alogliptin
  • clofazimine
  • fluprednisolone
  • megestrol acetate
  • pregnenolone
  • trifluoperazine
  • alosetron
  • clofibrate
  • flurazepam
  • melatonin
  • prenylamine
  • trifluridine
  • alpelisib
  • clomipramine
  • flurbiprofen
  • meloxicam
  • pretomanid
  • trilaciclib
  • alprazolam
  • fluspirilene
  • memantine
  • primaquine
  • trilostane
  • clonidine
  • flutamide
  • menthyl salicylate
  • probenecid
  • trimebutine
  • aluminium phosphate
  • clopidogrel
  • fluticasone (nasal)
propylthiouracil + 

chenodeoxycholic acid

They may diminish the serum concentration when combined with bile acid sequestrants

carbamazepine

they both increase the effect of each other when used simultaneously

clozapine

they both increase the effect of each other when used simultaneously 

methimazole

they both increase the effect of each other when used simultaneously

pexidartinib

they both increase the effect of each other when used simultaneously

pretomanid

they both increase the toxicity of each other when used simultaneously

ropeginterferon alfa b

they both increase the toxicity of each other when used simultaneously

methimazole

they both increase the effect of each other when used simultaneously

nortriptyline 

may increase the arrhythmogenic affect

lanthanum carbonate 

may diminish the serum concentration when combined with thyroid products

calcium carbonate

may decrease the serum concentration

magaldrate

may decrease the serum concentration

magnesium trisilicate

may decrease the serum concentration

omeprazole

may decrease the serum concentration

tiludronic acid

may decrease the serum concentration

estrogens esterified/methyltestosterone             

may decrease the therapeutic effect of estrogen derivatives

cadexomer iodine

they increase the effect of each other by pharmacodynamic synergism

iodinated glycerol

they increase the effect of each other by pharmacodynamic synergism

iodine

they increase the effect of each other by pharmacodynamic synergism

Actions and Spectrum: 

Actions: 

  • Inhibits the production of thyroid hormone by blocking the activity of an enzyme called thyroperoxidase, which is involved in the synthesis of thyroid hormones. 
  • Reduces the conversion of the thyroid hormone thyroxine (T4) to its active form, triiodothyronine (T3), by inhibiting another enzyme called 5′-deiodinase. 
  • May also have some immunosuppressive effects. 

Spectrum: 

  • PTU is mainly used in the treatment of hyperthyroidism, including Graves’ disease, toxic multinodular goiter, and toxic adenoma. 
  • It can also be used in the treatment of thyroid storm, a life-threatening complication of hyperthyroidism. 
  • PTU may be used in pregnant women with hyperthyroidism, as it is considered safer than methimazole, another medication used for hyperthyroidism, during pregnancy. 

Frequency not defined 

Agranulocytosis 

Aplastic anemia 

Hepatitis 

Polyarthritis 

Drowsiness 

Vertigo 

Alopecia 

Erythema nodosum 

Skin ulcers 

Goiter 

Weight gain 

Constipation 

Loss of taste 

Granulopenia 

Leukopenia 

Thrombocytopenia 

 

Black Box Warning: 

Severe liver injury and acute liver failure are rare but serious side effects of propylthiouracil, and patients taking this medication should be closely monitored for symptoms and signs of liver injury. The FDA recommends that healthcare providers measure liver function tests prior to initiating treatment with propylthiouracil and periodically thereafter, especially during the first six months of therapy. 

propylthiouracil should be reserved for those patients who cannot tolerate other treatments, such as methimazole, radioactive iodine, or surgery, due to the potential risk of liver injury. In pregnant women with hyperthyroidism, propylthiouracil may be the treatment of choice during the first trimester of pregnancy due to the strong association of methimazole with congenital malformations during this period. However, in later stages of pregnancy, methimazole is generally preferred due to a lower risk of liver injury in the mother. 

Contraindication/Caution: 

Contraindications: 

  • Known hypersensitivity to PTU or any of its components. 
  • Patients with a history of agranulocytosis (a severe blood disorder) or other blood dyscrasias related to PTU use. 

Precautions: 

  • Patients with liver disease or a history of liver injury, as PTU can cause severe liver damage. 
  • Patients with bone marrow depression or other blood disorders, as PTU can affect blood cell counts. 
  • Patients with autoimmune diseases, as PTU may exacerbate these conditions. 
  • PTU should be used with caution in pregnant women, particularly during the first trimester, as it can cross the placenta and affect fetal thyroid function. The medication should only be used if the benefits outweigh the risks. 
  • PTU can interact with other medications, such as warfarin and digoxin, and patients should be monitored closely for any potential drug interactions. 
  • PTU should be used with caution in patients with renal impairment, as it is excreted by the kidneys. 

Pregnancy consideration:  

Category D 

Breastfeeding warnings:  

Propylthiouracil is distributed in breastmilk and hence contraindicated during breastfeeding  

Pregnancy category: 

  • Category A: Satisfactory and well-controlled studies show no risk to the fetus in the first or later trimester. 
  • Category B: No evidence shown of risk to the fetus found in animal reproduction studies, and there are not enough studies on pregnant women    
  • Category C: Adverse effects on the fetus found with evidence in animal reproduction studies and no adequate evidence for a product in humans; Pregnant women must take care of the potential risks. 
  • Category D: There is adequate data available with sufficient evidence of human fetal risk from various platforms. However, despite potential dangers may be used only in emergency cases for potential benefits. 
  • Category X: Drugs listed in this category outweigh risks over benefits. The drug is not for pregnant women. 
  • Category N: No data is available for the drug under this category. 

Pharmacology: 

propylthiouracil (PTU) is an antithyroid medication used in the treatment of hyperthyroidism, which is the overactivity of the thyroid gland that leads to excessive thyroid hormone production. Here are some key points about the pharmacology of PTU: 

  • Mechanism of action: PTU inhibits the synthesis of thyroid hormones by blocking the iodination of thyroglobulin and the coupling of iodotyrosine residues. It also inhibits the conversion of thyroxine (T4) to triiodothyronine (T3) in peripheral tissues by blocking the enzyme 5′-deiodinase. 
  • Pharmacokinetics: PTU is rapidly absorbed after oral administration and reaches peak plasma levels within 30 minutes to 2 hours. The drug is extensively metabolized in the liver and excreted in the urine as metabolites. The half-life of PTU is about 1-2 hours, but the duration of its therapeutic effect is much longer due to the inhibition of thyroid hormone synthesis. 
  • Indications: PTU is used to treat hyperthyroidism, including Graves’ disease, toxic multinodular goiter, and thyroid storm. It is also sometimes used in preparation for thyroidectomy or radioactive iodine therapy. 
  • Dosage: The usual adult dose of PTU is 100-150 mg three times daily. The dose may be adjusted based on the patient’s response and thyroid function tests. 
  • Adverse effects: PTU can cause a variety of side effects, including skin rash, arthralgia, leukopenia, agranulocytosis, hepatotoxicity, and vasculitis. Patients taking PTU should be monitored closely for signs of these adverse effects, especially during the first few months of therapy. 
  • Drug interactions: PTU can interact with other medications, such as warfarin, which can increase the risk of bleeding. It can also enhance the effects of other antithyroid drugs, such as methimazole. 

Pharmacodynamics: 

The pharmacodynamics of PTU involve inhibition of both thyroid hormone synthesis and peripheral conversion, leading to a reduction in circulating levels of T4 and T3 and improvement in symptoms of hyperthyroidism. The slow onset and prolonged duration of action of the drug must be considered when managing patients with hyperthyroidism. 

Pharmacokinetics: 

Absorption 

The 75% of drug is absorbed 

Duration of action is 12-24 hours 

The half-life of elimination is 1-2 hours 

Distribution 

The volume of distribution is 0.4 L/kg 

The bound protein is 80-85% 

Peak plasma concentration is achieved in 1-2 hours 

The peak plasma concentration is 6-9 mcg/mL 

Metabolism 

The drug is metabolised in the liver, to glucuronide conjugates, sulfur metabolites, inorganic sulfates 

Elimination and Excretion 

The rate of total body clearance is 7 L/hr 

The drug is excreted 35% in urine

Administration: 

propylthiouracil (PTU) is an anti-thyroid medication used to treat hyperthyroidism, a condition where the thyroid gland produces too much thyroid hormone. PTU works by inhibiting the production of thyroid hormone by blocking the activity of an enzyme called thyroid peroxidase. 

PTU is usually taken orally in tablet form, and the dose and duration of treatment will depend on the individual patient’s condition and response to the medication. It is important to take the medication exactly as prescribed by the healthcare provider and not to stop taking it abruptly without medical advice, as this can cause a rebound increase in thyroid hormone levels. 

PTU can have several potential side effects, including nausea, vomiting, loss of appetite, headache, dizziness, rash, and joint pain. Rare but serious side effects can also occur, such as liver toxicity and a decrease in white blood cell count. Patients should be monitored closely for any signs of these side effects and advised to seek medical attention immediately if they occur. 

In addition, PTU should not be used during pregnancy unless the benefits outweigh the risks, as it can cross the placenta and potentially harm the developing fetus. It is also important to inform the healthcare provider of any other medications or supplements being taken, as they may interact with PTU and affect its effectiveness or increase the risk of side effects. 

Patient information leaflet 

Generic Name: propylthiouracil 

Pronounced: PRO-pil-THYE-oh-URE-a-sil 

Why do we use propylthiouracil? 

propylthiouracil (PTU) is used to treat hyperthyroidism, a condition where the thyroid gland produces too much thyroid hormone. Hyperthyroidism can be caused by various conditions, including Graves’ disease, toxic multinodular goiter, and toxic adenoma. 

PTU works by inhibiting the production of thyroid hormone by blocking the activity of an enzyme called thyroid peroxidase. This enzyme is required for the synthesis of thyroid hormone, and by inhibiting its activity, PTU reduces the amount of thyroid hormone produced by the thyroid gland. 

PTU is often used as a first-line treatment for hyperthyroidism, particularly in patients who cannot tolerate or have contraindications to other anti-thyroid medications like methimazole. PTU may also be used in combination with other medications or radioactive iodine therapy to achieve better control of hyperthyroidism. 

In addition to treating hyperthyroidism, PTU may also be used to prepare patients for thyroid surgery by reducing the size and activity of the thyroid gland before the procedure. 

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