Verificando…
Traduzido automaticamente. Doses e advertências: confira o original em inglês. Ler em inglês

Entecavir

Entecavir tablets are indicated for the treatment of chronic hepatitis B virus infection in adults and pediatric patients 2 years of age and older wit.

Checked against the official label · Updated

MEDICAMENTO SUJEITO A RECEITA MÉDICA Oral Alertas de segurança registados

Entecavir: quick answers

Used for
Entecavir tablets are indicated for the treatment of chronic hepatitis B virus infection in.
Usual adult dose
Decompensated liver disease (adults): 1 mg once daily.
Children
Nucleoside-inhibitor-treatment-naïve and lamivudine-experienced pediatric patients at least 2 years of age and weighing at least 10 kg: dosing is based on weight.
With food?
Entecavir tablets should be administered on an empty stomach.
Prescription
Prescription medicine in the United States; rules differ by country.

From the official label (Nov 2019). Your prescription and pharmacist come first.

How to use Entecavir

O que diz a bula oficial. Se um médico receitou, siga a receita. Se a bula da sua caixa for diferente, vale a da sua caixa.

Advertência grave: SEVERE ACUTE EXACERBATIONS OF HEPATITIS B, PATIENTS CO-INFECTED WITH HIV AND HBV, AND LACTIC ACIDOSIS AND HEPATOMEGALY Severe acute exacerbations of hepatitis B have been reported in patients who have discontinued anti-hepatitis B therapy, including entecavir. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who discontinue anti-hepatitis B therapy. …
Para quem é

Entecavir tablets are indicated for the treatment of chronic hepatitis B virus infection in adults and pediatric patients 2 years of age and older with evidence of active viral replication and either evidence of persistent elevations in serum aminotransferases (ALT or AST) or histologically active disease. Entecavir tablets are a hepatitis B virus nucleoside analogue reverse transcriptase inhibitor indicated for the treatment of chronic hepatitis B virus infection in adults and children at least 2 years of age with evidence of active viral replication and either evidence of persistent elevations in serum aminotransferases (ALT or AST) or histologically active disease. ( 1 )

Como tomar e com que frequência
  • Nucleoside-inhibitor-treatment-naïve with compensated liver disease (greater than or equal to 16 years old): 0.5 mg once daily
  • Nucleoside-inhibitor-treatment-naïve and lamivudine-experienced
  • Pediatric patients at least 2 years of age and weighing at least 10 kg: dosing is based on weight
  • Lamivudine-refractory or known lamivudine or telbivudine resistance substitutions (greater than or equal to 16 years old): 1 mg once daily
  • Decompensated liver disease (adults): 1 mg once daily
  • Renal impairment: Dosage adjustment is recommended if creatinine clearance is less than 50 mL/min
  • Entecavir tablets should be administered on an empty stomach
  • Timing of Administration Entecavir tablets should be administered on an empty stomach (at least 2 hours after a meal and 2 hours before the next meal)
  • Recommended Dosage
  • In Adults Compensated Liver Disease The recommended dose of entecavir tablets for chronic hepatitis B virus infection in nucleoside-inhibitor-treatment-naïve
  • Adults and adolescents 16 years of age and older is 0.5 mg once daily
  • The recommended dose of entecavir tablets
  • In adults and adolescents (at least 16 years of age) with a history of hepatitis B viremia while receiving lamivudine or known lamivudine or telbivudine resistance substitutions rtM204I/V with or without rtL180M, rtL80I/V, or rtV173L is 1 mg once daily
  • Decompensated Liver Disease The recommended dose of entecavir tablets for chronic hepatitis B virus infection
Strengths it comes in

Entecavir tablets, USP 0.5 mg are white to off-white, oval, film-coated, biconvex bevel edged, unscored tablets, debossed with “AN” on one side and “446” on the other side. Entecavir tablets, USP 1 mg are pink, oval, film-coated, biconvex bevel edged, unscored tablets, debossed with “AN” on one side and “449” on the other side. Tablets: 0.5 mg and 1 mg (3, 16)

Children
  • Entecavir was evaluated in two clinical trials of pediatric subjects 2 years of age and older with HBeAg-positive chronic HBV infection and compensated liver disease
  • The exposure of entecavir in nucleoside-inhibitor-treatment-naïve and lamivudine-experienced pediatric subjects 2 years of age and older with HBeAg-positive chronic HBV infection and compensated liver disease receiving 0.015 mg/kg (up to 0.5 mg once daily) or 0.03 mg/kg (up to 1 mg once daily), respectively, was evaluated in Study AI463028. …
Older adults

Clinical studies of entecavir did not include sufficient numbers of subjects aged 65 years and over to determine whether they respond differently from younger subjects. Entecavir is substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. …

While you are taking it
  • See FDA-approved patient labeling (Patient Information)
  • Severe Acute Exacerbation of Hepatitis after Discontinuation of Treatment Inform patients that discontinuation of anti-hepatitis B therapy, including entecavir, may result in severe acute exacerbations of hepatitis B
  • Advise the patient to not discontinue entecavir without first informing their healthcare provider [see Warnings and Precautions ] . …
Talk to a doctor first if
  • None
  • None
Medicines it may not mix with

Since entecavir is primarily eliminated by the kidneys [see Clinical Pharmacology (12.3) ] , co-administration of entecavir with drugs that reduce renal function or compete for active tubular secretion may increase serum concentrations of either entecavir or the co-administered drug. Co-administration of entecavir with lamivudine, adefovir dipivoxil, or tenofovir disoproxil fumarate did not result in significant drug interactions. The effects of co-administration of entecavir with other drugs that are renally eliminated or are known to affect renal function have not been evaluated, and patients should be monitored closely for adverse events when entecavir is co-administered with such drugs.

Warnings

Severe acute exacerbations of hepatitis B virus infection after discontinuation: Monitor hepatic function closely for at least several months. (5.1, 6.1) Co-infection with HIV: Entecavir is not recommended unless the patient is also receiving HAART. (5.2) Lactic acidosis and severe hepatomegaly with steatosis: If suspected, treatment should be suspended. (5.3) 5.1 Severe Acute Exacerbations of Hepatitis B Severe acute exacerbations of hepatitis B have been reported in patients who have discontinued anti-hepatitis B therapy, including entecavir [see Adverse Reactions (6.1) ] . …

Possíveis efeitos colaterais

The following adverse reactions are discussed in other sections of the labeling: Exacerbations of hepatitis after discontinuation of treatment [see Boxed Warning , Warnings and Precautions (5.1) ] . Lactic acidosis and severe hepatomegaly with steatosis [see Boxed Warning , Warnings and Precautions (5.3) ] . In adults, the most common adverse reactions (≥3%, all severity grades) are headache, fatigue, dizziness, and nausea. The adverse reactions observed in pediatric patients were consistent with those observed in adults. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Amneal Pharmaceuticals at 1-877-835-5472 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . …

Pregnancy and breastfeeding

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to entecavir during pregnancy. Healthcare providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. …

If you take too much

There is limited experience of entecavir overdosage reported in patients. Healthy subjects who received single entecavir doses up to 40 mg or multiple doses up to 20 mg/day for up to 14 days had no increase in or unexpected adverse events. If overdose occurs, the patient must be monitored for evidence of toxicity, and standard supportive treatment applied as necessary. Following a single 1 mg dose of entecavir, a 4-hour hemodialysis session removed approximately 13% of the entecavir dose.

Se esquecer uma dose

Tome assim que lembrar, a menos que esteja quase na hora da próxima dose. Nesse caso, pule a dose esquecida. Nunca tome duas doses de uma vez para compensar. Confira a bula, pois alguns medicamentos são diferentes.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2019-11-24.

How much Entecavir costs

In other countries

Prices in other countries are not what you will pay where you live; they show how prices compare.

Marcas pelo mundo

Products with Entecavir as the active ingredient. Names differ between countries.

Registered products

United States (FDA)

EntecavirENTECAVIR .5 mg/1 · Tablet, Film Coated · Patheon, Inc.
NDC 63285-887Label
EntecavirENTECAVIR 1 mg/1 · Tablet, Film Coated · Patheon, Inc.
NDC 63285-888Label
EntecavirENTECAVIR .5 mg/1 · Tablet, Film Coated · Yaopharma Co., Ltd.
NDC 50771-013Label
EntecavirENTECAVIR 1 mg/1 · Tablet, Film Coated · Yaopharma Co., Ltd.
NDC 50771-014Label
EntecavirENTECAVIR 50 kg/50kg · Powder · Aurobindo Pharma Limited
NDC 65862-798Label

Nigeria (NAFDAC)

NAFDACEntecavir 1 mg Tablet C4-1641NAFDACEntecavir 0.5 mg Tablet C4-1640

Other countries: check your pack's registration number and we point you to your regulator.

Safety alerts and recalls

Entecavir Tablets, USP, 0.5 mg, 30-count bottle, Rx Only, Manufactured by: Zydus Lifesciences Ltd., Ahmedabad, India, Distributed by: Zydus Pharmaceuticals (USA) Inc., Pennington, U.S. FDA Class II
24 Sep 2025 · Zydus Pharmaceuticals (USA) Inc · OngoingFailed impurity/degradation specifications:Out of Specification result for an individual organic impurity
Entecavir Tablets, USP, 1 mg, 30-count bottle, Rx Only, Manufactured by: Zydus Lifesciences Ltd., Ahmedabad, India, Distributed by: Zydus Pharmaceuticals (USA) Inc., Pennington, NJU.S. FDA Class II
24 Sep 2025 · Zydus Pharmaceuticals (USA) Inc · OngoingFailed impurity/degradation specifications:Out of Specification result for an individual organic impurity
Entecavir Tablets, USP, 1 mg, 30 Tablets, Rx Only, Manufactured by: Zydus Lifesciences Ltd., Ahmedabad, India, Distributed by: Zydus Pharmaceuticals (USA) Inc., Pennington, NJ 0853U.S. FDA Class II
4 Sep 2025 · Zydus Pharmaceuticals (USA) Inc · OngoingFailed Impurity/Degradation Specifications
Entecavir Tablets, USP, 0.5 mg, 30 Tablets, Rx Only, Manufactured by: Zydus Lifesciences Ltd., Ahmedabad, India, Distributed by: Zydus Pharmaceuticals (USA) Inc., Pennington, NJ 08U.S. FDA Class II
4 Sep 2025 · Zydus Pharmaceuticals (USA) Inc · OngoingFailed Impurity/Degradation Specifications

A recall usually affects certain batches only. Compare the lot number on your pack.

Check your pack of Entecavir

Type the registration number on the pack, or scan it with your camera.

Ou tire fotos da caixa
Restam 3 verificações grátis hoje Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Entecavir

What is Entecavir used for?

Entecavir tablets are indicated for the treatment of chronic hepatitis B virus infection in adults and pediatric patients 2 years of age and older with evidence of active viral replication and either evidence of persistent elevations in serum aminotransferases (ALT or AST) or histologically active disease. Entecavir tablets are a hepatitis B virus nucleoside analogue reverse transcriptase inhibitor indicated for the (From the official U.S. FDA label.)

How do I take Entecavir?

Follow your prescription or the leaflet in your pack. The official label says: Nucleoside-inhibitor-treatment-naïve with compensated liver disease (greater than or equal to 16 years old): 0.5 mg once daily. ( 2.2 ) Nucleoside-inhibitor-treatment-naïve and lamivudine-experienced pediatric patients at least 2 years of age and weighing at least 10 kg: dosing is based on weight. ( 2.3 ) Lamivudine-refractory or known lamivudine or telbivudine resistance subst…

Should I take Entecavir with food?

Entecavir tablets should be administered on an empty stomach.

Do I need a prescription for Entecavir?

Usually yes. Entecavir is a prescription medicine in most countries. Rules differ by country.

What brands contain Entecavir?

Entecavir is sold under names such as Baraclude. Brand names differ between countries.

What are the side effects of Entecavir?

The official label lists: The following adverse reactions are discussed in other sections of the labeling: Exacerbations of hepatitis after discontinuation of treatment [see Boxed Warning , Warnings and Precautions (5.1) ] . Lactic acidosis and severe hepatomegaly with steatosis [see Boxed Warning , Warnings and Precautions (5.3) ] . In adults, the most common adverse reactions (≥3%, all severity grades… Tell your doctor about any side effect that bothers you or does not go away.

Can children take Entecavir?

Entecavir was evaluated in two clinical trials of pediatric subjects 2 years of age and older with HBeAg-positive chronic HBV infection and compensated liver disease. The exposure of entecavir in nucleoside-inhibitor-treatment-naïve and lamivudine-experienced pediatric subjects 2 years of age and older with HBeAg-positive chronic HBV infection and compensated liver disease rece… Always use the dose for the child's age or weight on the pack or prescription.

Can I take Entecavir when pregnant or breastfeeding?

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to entecavir during pregnancy. Healthcare providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. … Ask your doctor or midwife first.

What medicines interact with Entecavir?

Since entecavir is primarily eliminated by the kidneys [see Clinical Pharmacology (12.3) ] , co-administration of entecavir with drugs that reduce renal function or compete for active tubular secretion may increase serum concentrations of either entecavir or the co-administered drug. Co-administration of entecavir with lamivudine, adefovir dipivoxil, or tenofovir disoproxil fum… Use the free interaction checker before combining medicines.

What happens if I take too much Entecavir?

There is limited experience of entecavir overdosage reported in patients. Healthy subjects who received single entecavir doses up to 40 mg or multiple doses up to 20 mg/day for up to 14 days had no increase in or unexpected adverse events. If overdose occurs, the patient must be monitored for eviden… Get medical help right away.

How can I check that my Entecavir is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.