What it is used for
- Treating chronic hepatitis B when the virus is active.
- Helps reduce virus activity and protect the liver.
How it is used
- Take it exactly as your doctor prescribed; your doctor decides the dose.
- It is usually taken long term; your doctor decides how long.
- Do not stop it on your own, even if you feel well.
Before and while using it
- Stopping suddenly can cause a severe flare of hepatitis; always ask your doctor first.
- You will need regular liver and kidney tests.
- Your doctor may test you for HIV before you start.
- Tell your doctor if you are pregnant, planning a pregnancy or breastfeeding.
Get medical help straight away if
- Your face, lips or tongue swell, or you find it hard to breathe.
- You get a severe rash, blistering or peeling skin.
- A side effect worries you or doesn’t go away: contact your doctor or pharmacist.
Questions about this medicine?
Talk to a doctor by video, or send your question by text.
Source: National drug formulary 2023, page 163
This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.