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Brand Name :
Engerix-B, Recombivax HB
Synonyms :
Hepatitis B Vaccine (Recombinant)
Class :
Vaccine, Inactivated (Viral), Recombinant
Brand Name :
Engerix-B, Recombivax HB
Synonyms :
Hepatitis B Vaccine (Recombinant)
Class :
Vaccine, Inactivated (Viral), Recombinant
Dosage Forms & StrengthsÂ
Suspension Â
10 mcg/mlÂ
20 mcg/mlÂ
40 mcg/mlÂ
Dosage Forms & StrengthsÂ
Suspension Â
5 mcg/0.5 mlÂ
10 mcg/0.5 mlÂ
Refer to adult dosingÂ
Actions and SpectrumÂ
The Hepatitis B Vaccine (Recombinant) works by triggering the immune system to produce protective antibodies against the Hepatitis B virus. The vaccine contains recombinant viral surface proteins, known as the hepatitis B surface antigen (HBsAg).
Frequency not defined Â
Drowsiness, fatigue Â
Flushing, hypotensionÂ
Body pain, chills Â
Irritability, malaiseÂ
Headache, insomnia Â
Skin rash, urticariaÂ
Abdominal pain, anorexiaÂ
Diarrhea, dyspepsia Â
Paresthesia, tingling sensation, vertigoÂ
Decreased appetiteÂ
Diaphoresis Â
Nausea, stomach crampsÂ
DysuriaÂ
Rhinitis, upper respiratory tract infectionÂ
LymphadenopathyÂ
AngioedemaÂ
Bruising at injection siteÂ
Erythema at injection site Â
InfluenzaÂ
Induration at injection site Â
injection site noduleÂ
Neck pain, neck stiffnessÂ
Arthralgia, back pain, myalgiaÂ
Shoulder pain, weaknessÂ
Cough, pharyngitisÂ
Post marketing report Â
Anaphylactoid reactionÂ
Febrile seizures Â
Abnormal hepatic function tests Â
Herpes zosterÂ
Petechiae, purpura Â
Arthritis Â
Thrombocytopenia, tinnitusÂ
Transverse myelitis, uveitisÂ
Bell’s palsy, brain diseaseÂ
Agitation, alopeciaÂ
Radiculopathy, seizure, serum sickness-like reactionÂ
Stevens-Johnson syndromeÂ
Anaphylaxis, apneaÂ
bronchospasmÂ
Syncope, systemic lupus erythematosus, tachycardiaÂ
Vasculitis, visual disturbanceÂ
Black Box WarningÂ
None
Contraindication/Caution:Â
Contraindication:Â
Caution:Â
Pregnancy consideration:Â
Pregnancy category: N/AÂ
Lactation: Excretion into human milk is unknown Â
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
The vaccine is based on hepatitis B surface antigen (HBsAg) generated by yeast cells using recombinant DNA methods. Â
The part of the hepatitis B gene that codes for HBsAg is cloned into yeast, which is then grown to create hepatitis B vaccine. Â
PharmacodynamicsÂ
The differentiated plasma cells secrete large amounts of specific antibodies, known as anti-HBs antibodies. Â
These antibodies are highly specific to the HBsAg present in the vaccine. They circulate in the bloodstream, providing humoral immunity against the Hepatitis B virus.Â
PharmacokineticsÂ
ADME is not fully understood
AdministrationÂ
The Hepatitis B Vaccine (Recombinant) is administered through intramuscular injection.
Patient information leafletÂ
Generic Name: Hepatitis B Vaccine (Recombinant)Â
Why do we use Hepatitis B Vaccine (Recombinant)?Â
The essential use of the Hepatitis B Vaccine (Recombinant) is for the prevention of Hepatitis B virus (HBV) infection.  Â
The Hepatitis B vaccine is recommended for all infants shortly after birth, typically within the first 24 hours.  Â
Administering this vaccine at birth helps provide early protection for babies born to mothers who are Hepatitis B positive.Â