Entecavir 1mg tablets
Requires a prescription from a doctor or prescriber
Entecavir is an oral antiviral drug used in the treatment of hepatitis B infection.
Official documents, adverse reaction reporting, and safety monitoring
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Official medicine documents
Safety monitoring data
Yellow Card reports
The MHRA Yellow Card scheme collects reports of suspected side effects from healthcare professionals and patients. View the Drug Analysis Profile (iDAP) for real-world adverse reaction data.
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Suspected adverse reactions reported for Entecavir
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Interactive Drug Analysis Profiles for all medicines
Report a side effect
Submit a Yellow Card report to the MHRA
Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
EudraVigilance
The European Medicines Agency (EMA) collects suspected adverse reaction reports from across the EU/EEA through the EudraVigilance system. Search for safety data on this medicine.
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Suspected adverse reactions reported for Entecavir
About EudraVigilance
Learn about EU pharmacovigilance and safety monitoring
EudraVigilance data is published by the European Medicines Agency (EMA). A suspected adverse reaction is not necessarily caused by the medicine.
11 branded products available
MHRA licensed products
View all licensed products for Entecavir on the MHRA register
Baraclude 1mg tablets
Entecavir 1mg tablets
Entecavir 1mg tablets
Entecavir 1mg tablets
Entecavir 1mg tablets
This is the NHS Drug Tariff indicative price used for reimbursement purposes. It may not reflect the price paid by patients or pharmacies.
View full Drug TariffSource: NHS Drug Tariff via NHSBSA. Derived from dm+d VMPP (Virtual Medicinal Product Pack) pricing data. Contains public sector information licensed under the Open Government Licence v3.0.
WHO defined daily dose (DDD)
500 microgram
Not a recommended dose. The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is a statistical measure used for research and comparison purposes only.
Source: WHO Collaborating Centre for Drug Statistics Methodology, distributed via NHS dm+d BNF mapping files. Contains public sector information licensed under the Open Government Licence v3.0.
Therapeutically similar medicines
Similarity based on WHO Anatomical Therapeutic Chemical (ATC) classification and NHS BNF section grouping. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Clinical guidelines and formulary information
British National Formulary
Entecavir
Source: British National Formulary, NICE. Joint Formulary Committee. Contains public sector information licensed under the Open Government Licence v3.0.
NICE clinical guidance(4)
Entecavir for the treatment of chronic hepatitis B (TA153)
Hepatitis B (chronic): diagnosis and management (CG165)
Tenofovir disoproxil for the treatment of chronic hepatitis B (TA173)
Bulevirtide for treating chronic hepatitis D (TA896)
Source: National Institute for Health and Care Excellence (NICE). Contains public sector information licensed under the Open Government Licence v3.0.
Check stock at pharmacies and supply information
Pharmacy stock checkers
Search for this medicine at major UK pharmacy chains. These links open the retailer's own website — results depend on their current online catalogue.
Supply & product information
Official product databases and supply status monitoring
Pharmacy links redirect to the retailer's own search and do not represent real-time stock levels. emc (electronic medicines compendium) is operated by Datapharm Ltd. Shortage information sourced from NHS Specialist Pharmacy Service (SPS), sps.nhs.uk.
Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. BNF codes from NHS Business Services Authority (NHSBSA). ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
128-149 hours
Mechanism
By competing with the natural substrate deoxyguanosine triphosphate, entecavir f…
Food interactions
1 warning
Human targets
None mapped
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
1.5 hours
Half-life
128-149 hours
Protein binding
13%
Metabolism
Clearance
101.8 mL/min
* renal cl=197.9…
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Entecavir is a guanine analogue that inhibits all three steps in the viral replication process, and the manufacturer claims that it is more efficacious than previous agents used to treat hepatitis B (lamivudine and adefovir). It was approved by the U.S. Food and Drug Administration (FDA) in March 2005.
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 330 interactions
How the body processes this drug — absorption, distribution, metabolism, and elimination
* renal cl=197.9 +/- 78.1 mL/min [Mild impaired renal function]
* renal cl=135.6 +/- 31.6 mL/min [Moderate impaired renal function]
* renal cl=40.3 +/- 10.1 mL/min [severe impaired renal function]
* apparent oral cl=588.1 +/- 153.7 mL/min [Unimpaired renal function]
* apparent oral cl=309.2 +/- 62.6 mL/min [Mild impaired renal function]
* apparent oral cl=226.3 +/- 60.1 mL/min [Moderate impaired renal function]
* apparent oral cl=100.6 +/- 29.1 mL/min [severe impaired renal function]
* apparent oral cl=50.6 +/- 16.5 mL/min [severe impaired renal function amnaged with Hemodialysis]
* apparent oral cl=35.7 +/- 19.6 mL/min [severe impaired renal function amnaged with CAPD]
ATC J05AF10
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Entecavir
Additional database identifiers
Drugs Product Database (DPD)
13030
ChemSpider
135679
BindingDB
50248008
ZINC
ZINC000003802690
UniProt Accession
Q3MS49_HBV
International reference pricing
Reference pricing from DrugBank. Prices are indicative and may not reflect current UK costs.
Source: DrugBank. Used under CC BY-NC 4.0 academic licence for non-commercial purposes.
Patent information
All patents expired, 2 expired
Source: DrugBank · CC BY-NC 4.0. Patent data sourced from national patent offices. Expiry dates may not reflect extensions, regulatory exclusivity periods, or legal challenges.
DrugBank citations
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