Anti-infective
Hepatitis antivirals
Treatments for hepatitis B and C — Modern tablets that cure most hepatitis C and control hepatitis B, protecting the liver long term.
Education and reference only. This is a plain-language class overview — it deliberately contains no doses. Always check the current Summary of Product Characteristics (SmPC), the BNF and your local formulary before prescribing or administering any medicine.
Quick answer
What is Hepatitis antivirals?
Hepatitis antivirals treat long-term (chronic) infection with the hepatitis B or C viruses, which damage the liver over years. Direct-acting antivirals cure most hepatitis C in a short course, while hepatitis B medicines suppress the virus and protect the liver, usually long-term.
- How it works: The medicines block the specific machinery each virus uses to copy itself inside liver cells.
- In practice: In practice viral hepatitis treatment has been transformed.
What it is
Hepatitis antivirals treat long-term (chronic) infection with the hepatitis B or C viruses, which damage the liver over years. Direct-acting antivirals cure most hepatitis C in a short course, while hepatitis B medicines suppress the virus and protect the liver, usually long-term.
How it works
The medicines block the specific machinery each virus uses to copy itself inside liver cells. For hepatitis C, combining agents that hit different steps clears the virus completely in most people. For hepatitis B, the drugs hold viral copying down so inflammation and scarring slow or improve, but the virus persists, which is why treatment usually continues.
In practice
In practice viral hepatitis treatment has been transformed. Chronic hepatitis C is now curable in the great majority with a short course (typically a few months) of well-tolerated direct-acting antiviral tablets, chosen by genotype and the state of the liver, with cure confirmed by a blood test some weeks after finishing. Chronic hepatitis B is different: the antivirals control and suppress the virus and protect the liver but are usually taken long-term rather than curing it, and stopping can cause a dangerous flare, so it is not stopped without specialist supervision. Across both, the practical themes are assessing the liver for scarring (fibrosis or cirrhosis) because that changes treatment and follow-up, checking for and managing co-infection with HIV (and the risk of hepatitis B reactivation when people start strong immunosuppressants), drug interactions (notably with some statins, certain heart and HIV drugs and acid-reducers), and continued liver-cancer surveillance in those with cirrhosis even after cure. Prevention through hepatitis B vaccination and harm-reduction is part of the wider picture.
Examples
Practical use
How to take it & use it well
- Take the tablets every day at the times you have been told and complete the full course, as stopping early or missing doses can let the virus survive and become harder to treat.
- Follow the food advice for your particular medicine, link your doses to a daily routine, and use reminders, since a steady level in your body gives the best chance of clearing or controlling the infection.
- Avoid alcohol while you are being treated, as it puts extra strain on a liver that is already under pressure and can work against your recovery.
- If you are being treated for hepatitis B, never stop your tablets without specialist advice, as suddenly stopping can cause the liver to flare up badly.
- Tell your pharmacist about everything else you take, including indigestion remedies, heart tablets and herbal products, as several can clash with hepatitis treatments.
- Keep all your blood tests and scans, as these show how your liver is responding and, if you already have scarring, continue checking for liver cancer even after the virus is cleared.
Common uses
- Chronic hepatitis C (usually curative course)
- Chronic hepatitis B (long-term suppression)
- Preventing hepatitis B reactivation with immunosuppression
Monitoring
- Cure confirmation (hepatitis C) and viral load (hepatitis B)
- Liver function and fibrosis/cirrhosis assessment
- Kidney function and liver-cancer surveillance where relevant
Weighing it up
Advantages & disadvantages
Advantages
- Modern hepatitis C treatment usually cures the infection with a short, well-tolerated course of tablets.
- Curing hepatitis C removes the virus, which can halt or even reverse some liver damage and lowers future risk.
- Hepatitis B medicines reliably suppress the virus, protecting the liver and reducing the risk of cirrhosis and cancer.
- Most of these treatments are tablets taken at home and are far easier to tolerate than older injection-based regimens.
- Successful treatment also reduces the chance of passing the infection on to others.
Disadvantages
- Hepatitis B treatment is usually long-term, and stopping it suddenly can trigger a dangerous flare of the liver.
- Even after hepatitis C is cured, anyone with existing scarring still needs lifelong checks for liver cancer.
- Some people get side effects such as tiredness, headache or nausea, particularly early in treatment.
- These medicines interact with several other drugs, so every other treatment has to be reviewed first.
- A cure for hepatitis C does not make you immune, so you can catch it again if exposed.
Key safety principles
What to watch for
- Hepatitis B antivirals are usually long-term — stopping suddenly can cause a serious liver flare; only stop under specialist advice.
- Assess the liver for scarring (cirrhosis); cancer surveillance continues even after hepatitis C is cured.
- Check interactions (some statins, heart, HIV and acid-reducing drugs) and screen for HIV co-infection.
Key interactions
What to avoid or check alongside
- Indigestion remedies and antacids can reduce how well some hepatitis C tablets are absorbed, so they need to be spaced apart or avoided.
- Certain heart-rhythm medicines can interact dangerously with some hepatitis C treatments and must be reviewed by the specialist.
- Some cholesterol-lowering statins can build up with these treatments, so the type or amount may need adjusting.
- Herbal products such as St John's wort can lower the level of antiviral treatment and should be avoided.
- Alcohol adds to the strain on the liver and can work against treatment, so it is best avoided altogether.
Patient & carer advice
- Hepatitis C can usually be cured by a short course of well-tolerated tablets
- If you have hepatitis B, do not stop your medicine without advice — stopping can flare the liver
- Avoid alcohol, keep your appointments, and tell prescribers about all your other medicines
Use with
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Answers
Hepatitis antivirals: frequently asked questions
Can hepatitis C really be cured?
Yes. For most people, a short course of modern tablets clears hepatitis C completely, with high cure rates and few side effects. After treatment you will have a blood test to confirm the virus has gone. If you already have liver scarring, you will still need ongoing liver checks.
Why can't I just stop my hepatitis B tablets when I feel well?
Hepatitis B treatment is usually long-term and keeps the virus suppressed rather than curing it. Stopping suddenly can cause the virus to surge and the liver to flare up badly, which can be serious. Only ever stop on your specialist's advice.
Do I still need liver scans after my hepatitis C is cured?
If you developed cirrhosis or significant scarring before being cured, yes. The cure removes the virus but not the existing damage, which still carries a risk of liver cancer. Regular surveillance scans continue so any problem can be caught early.
Can I drink alcohol while being treated?
It is best to avoid alcohol completely. Your liver is already under strain from the infection, and alcohol adds to the damage and can work against your treatment. Talk to your team about support if cutting down is difficult.
Can I catch hepatitis C again after being cured?
Yes. Being cured does not make you immune, so you can become infected again if you are exposed to the virus, for example through sharing injecting equipment. Taking steps to avoid re-exposure protects the benefit of your treatment.
Authoritative sources
Always verify against the source
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