A Framework for Fitness-for-Purpose and Reuse in Computational Phenotyping
November 17, 2025
Brand Name :
Balcoltra
Synonyms :
levonorgestrel oral/ferrous bisglycinate/ ethinylestradiol
Class :
Contraceptives, Oral
Dosage Forms & StrengthsÂ
TabletÂ
0.1mg/0.02mcg (21 tabs) plus 36.5mg ferrous bisglycinate (7 tabs)Â
(levonorgestrel oral/ethinylestradiol)/with {ferrous bisglycinate}Â
Take one active tablet orally daily for three weeks and then take one ferrous tablet orally daily on Days 22 to 28
Note: Take tablets in the sequence as indicated on blister pack
Dosage Modifications
Stop taking drug if following adverse reactions occurs:
Arterial thrombotic event or venous thromboembolic event, proptosis, diplopia, papilledema, Unexplained loss of vision
Hepatic impairment
Study not performed
Dosing Considerations
Start with transdermal patch of levonorgestrel oral/ethinylestradiol/ferrous bisglycinate on the next scheduled application
After a first-trimester abortion then start levonorgestrel oral/ethinylestradiol/ ferrous bisglycinate instantly
After childbirth, start with contraceptive therapy following instructions for women those are not currently using hormonal contraception
Safety and efficacy not determined in less than 18 years old Â
Refer to adult dosingÂ
Actions and SpectrumÂ
levonorgestrel oral/ethinylestradiol both are synthetic progestin hormone, and they work primarily by preventing ovulation, making it more difficult for sperm to reach the egg, and altering the uterine lining to reduce the chance of implantation.Â
ferrous bisglycinate is a form of iron supplement and it provides iron, an essential mineral required to produce hemoglobin, which carries oxygen in the blood.
Frequency defined Â
1-10%Â
Nausea (7%)Â
Amenorrhea (2%)Â
Vaginal moniliasis (2%)Â
Breast pain (4%)Â
Emotional lability (3%)Â
Acne (3%)Â
Depression (2%)Â
Abdominal pain (4%)Â
Metrorrhagia (8%)Â
Dysmenorrhea (7%)Â
<1%Â
HypertensionÂ
DysmenorrheaÂ
FlatulenceÂ
Weight gainÂ
HypercholesterolemiaÂ
>10%Â
Headache (14%)Â
Post marketing ReportsÂ
Musculoskeletal and connective-tissue disorders: back pain, muscle spasm, Pain in extremity, arthralgiaÂ
Immune system disorders: including pruritus, rash, urticaria, erythema, hypersensitivity reactionsÂ
Respiratory, thoracic, and mediastinal disorders: cough, NasopharyngitisÂ
Psychiatric disorders: Depression, anxiety, insomniaÂ
Vascular disorders: Deep vein thrombosis, pulmonary embolismÂ
Gastrointestinal disorders: vomiting, diarrhea, abdominal pain, nauseaÂ
Cardiac disorder: Chest pain, palpitations, dyspneaÂ
Sleep disorders: SomnolenceÂ
Black Box WarningÂ
Cigarette smoking will raise the threat of great cardiovascular occasions from blended hormonal contraceptive (CHC) use. Â
This threat will increase with age, in girls aged ≥35 year, and with the wide variety of cigarettes smoked.Â
Contraindication/Caution:Â
Contraindication:Â
Caution:Â
Pregnancy consideration:Â
Pregnancy category: N/AÂ
Lactation: levonorgestrel oral/ethinylestradiol are present in human milkÂ
Pregnancy Categories:        Â
Category A: well-controlled and Satisfactory studies show no risk to the fetus in the first or later trimester.Â
Category B: there was no evidence of risk to the fetus in animal studies, and there were not enough studies on pregnant women. Â
Category C: there was evidence of risk of adverse effects in animal reproduction studies, and no adequate evidence in human studies must take care of potential risks in pregnant women.Â
Category D: adequate data with sufficient evidence of human fetal risk from various platforms, but despite the potential risk, and used only in emergency cases for potential benefits.Â
Category X: Drugs listed in this category outweigh the risks over benefits. Hence these categories of drugs need to be avoided by pregnant women.Â
Category N: There is no data available for the drug under this category.Â
Pharmacology Â
levonorgestrel oral/ethinylestradiol both are synthetic progestin, a type of female sex hormone. It acts by binding to progesterone receptors in the body. Â
levonorgestrel oral/ethinylestradiol they prevent pregnancy by inhibiting ovulation (release of an egg from the ovaries), thickening cervical mucus thus making it harder for sperm to reach the egg also reduces the risk of breakthrough bleeding, and enhances the contraceptive efficacy of combined drug.Â
ferrous bisglycinate is a form of iron supplement used to treat or prevent iron deficiency anemia. It contains iron, an essential mineral required to produce hemoglobin, which carries oxygen in the blood. Â
PharmacodynamicsÂ
levonorgestrel oral/ethinylestradiol both exerts its effects by binding to progesterone receptors in target tissues, including the hypothalamus, pituitary gland, and reproductive organs.Â
ferrous bisglycinate provides supplemental iron, which is necessary to treat or prevent iron deficiency anemia.Â
PharmacokineticsÂ
Absorption  Â
levonorgestrel oral/ethinylestradiol both well absorbed after oral administration. Â
ferrous bisglycinate is a form of iron supplement shows high bioavailability and better absorption.Â
DistributionÂ
levonorgestrel oral/ethinylestradiol both extensively bound to plasma proteins.Â
ferrous bisglycinate is distributed throughout the body.Â
MetabolismÂ
levonorgestrel oral/ethinylestradiol both undergoes metabolism mainly in the liver.Â
ferrous bisglycinate as iron is not significantly metabolized in the body.Â
Elimination and excretionÂ
levonorgestrel oral/ethinylestradiol are excreted in urine around 40 to 68% and in feces 16 to 48%.Â
iron supplements are primarily excreted through feces and sweat.Â
AdministrationÂ
Oral contraceptive containing levonorgestrel /ethinylestradiol are usually taken orally in form of tablets. Â
ferrous bisglycinate, as an iron supplement is taken orally and available in various forms such as tablets and capsules.Â
Patient information leafletÂ
Generic Name: levonorgestrel oral/ferrous bisglycinate/ethinylestradiol        Â
Why do we use levonorgestrel oral/ferrous bisglycinate/ethinylestradiol?Â
levonorgestrel oral/ethinylestradiol are commonly used for birth control to prevent pregnancy as combined oral contraceptives.  Â
ferrous bisglycinate is a form of iron supplement used to treat iron deficiency.Â
Iron supplements like ferrous bisglycinate help increase iron levels in the body and improve red blood cell production.Â