Patient Leaflet Updated 20-Jul-2026 | Aurobindo Pharma - Milpharm Ltd.
Entecavir 0.5mg & 1mg film-coated tablets
Entecavir 0.5 mg film-coated tablets
Entecavir 1 mg film-coated tablets
entecavir
1. What Entecavir is and what it is used for
2. What you need to know before you take Entecavir
3. How to take Entecavir
4. Possible side effects
5. How to store Entecavir
6. Contents of the pack and other information
Entecavir tablets are anti-viral medicines, used to treat chronic (long term) hepatitis B virus (HBV) infection in adults. Entecavir can be used in people whose liver is damaged but still functions properly (compensated liver disease) and in people whose liver is damaged and does not function properly (decompensated liver disease).
Entecavir tablets are also used to treat chronic (long term) HBV infection in children and adolescents aged 2 years to less than 18 years. Entecavir can be used in children whose liver is damaged but still functions properly (compensated liver disease).
Infection by the hepatitis B virus can lead to damage to the liver. Entecavir reduces the amount of virus in your body, and improves the condition of the liver.
Talk to your doctor or pharmacist before taking Entecavir.
Entecavir should not be used for children below 2 years of age or weighing less than 10 kg.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
In most cases you may take Entecavir with or without food. However, if you have had a previous treatment with a medicine containing the active substance lamivudine you should consider the following. If you were switched over to Entecavir because the treatment with lamivudine was not successful, you should take Entecavir on an empty stomach once daily. If your liver disease is very advanced, your doctor will also instruct you to take Entecavir on an empty stomach. Empty stomach means at least 2 hours after a meal and at least 2 hours before your next meal.
0.5 mg:
Children and adolescents (from 2 to less than 18 years of age) can take entecavir with or without food.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. It has not been demonstrated that Entecavir is safe to use during pregnancy.
Entecavir must not be used during pregnancy unless specifically directed by your doctor. It is important that women of childbearing age receiving treatment with Entecavir use an effective method of contraception to avoid becoming pregnant.
You should not breast-feed during treatment with Entecavir. Tell your doctor if you are breast-feeding. It is not known whether entecavir, the active ingredient in Entecavir tablets, is excreted in human breast milk.
Dizziness, tiredness (fatigue) and sleepiness (somnolence) are common side effects which may impair your ability to drive and use machines. If you have any concerns consult your doctor.
Entecavir contains lactose monohydrate. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.
Not all patients need to take the same dose of Entecavir.
Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
For adults the recommended dose is either 0.5 mg or 1 mg once daily orally (by mouth).
0.5 mg:
For children and adolescents (from 2 to less than 18 years of age), your child’s doctor will decide the right dose based on your child’s weight. Children weighing at least 32.6 kg may take the 0.5 mg tablet or an entecavir oral solution may be available. For patients weighing from 10 kg to 32.5 kg, an entecavir oral solution is recommended.
All dosing will be taken once daily orally (by mouth). There are no recommendations for entecavir in children less than 2 years of age or weighing less than 10 kg.
Your child’s doctor will decide the right dose based on your child’s weight.
1 mg:
For children and adolescents (from 2 to less than 18 years of age), Entecavir 0.5 mg tablets are available or an entecavir oral solution may be available.
Your child’s doctor will decide the right dose based on your child’s weight.
Your doctor will advise you on the dose that is right for you. Always take the dose recommended by your doctor to ensure that your medicine is fully effective and to reduce the development of resistance to treatment. Take Entecavir as long as your doctor has told you. Your doctor will tell you if and when you should stop the treatment.
Some patients must take Entecavir on an empty stomach (see Entecavir with food and drink in Section 2). If your doctor instructs you to take Entecavir on an empty stomach, empty stomach means at least 2 hours after a meal and at least 2 hours before your next meal.
Contact your doctor at once.
It is important that you do not miss any doses. If you miss a dose of Entecavir, take it as soon as possible, and then take your next scheduled dose at its regular time. If it is almost time for your next dose, do not take the missed dose. Wait and take the next dose at the regular time. Do not take a double dose to make up for a forgotten dose.
Some people get very serious hepatitis symptoms when they stop taking Entecavir. Tell your doctor immediately about any changes in symptoms that you notice after stopping treatment.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Patients treated with Entecavir have reported the following side effects:
The side effects experienced in children and adolescents are similar to those experienced in adults as described above with the following difference:
Very common (at least 1 in 10 patients): low levels of neutrophils (one type of white blood cells, which are important in fighting infection).
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet.
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system listed in Yellow Card Scheme, Website: www.mhra.gov.uk/yellowcard. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the label, carton, blister or bottle after EXP. The expiry date refers to the last day of that month.
Blister Pack: Store below 30°C.
HDPE Pack: This medicine does not require any special storage conditions.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
Film coated tablet.
Entecavir 0.5 mg film-coated tablets
White triangular shaped, biconvex, film-coated tablets, debossed with ‘ET’ on one side and ‘0 5’ on the other side.
Entecavir 1 mg film-coated tablets
White round shaped, biconvex, film-coated tablets, debossed with ‘ET’ on one side and ‘1’ on the other side.
Entecavir film-coated tablets are available in blister packs and HDPE bottle packs with polypropylene closure.
Pack sizes:
Blister packs: 30 and 90 film-coated tablets
HDPE packs: 30, 100 and 250 film-coated tablets.
Not all pack sizes may be marketed.
or
or
This leaflet was last revised in 10/2025.
P1540350
Milpharm Limited, 1 Roundwood Avenue, Stockley Park, Uxbridge, UB11 1AF, UK
+ 44 (0)208 845 8811
+44 (0)208 845 8811
http://www.aurobindo.com
+44 (0)208 845 8795