Tenofovir disoproxil
Also sold as: Viread, Tenvir
Prescription neededAntivirals
Comes as:Tablet
Usual adult dose
Dose is set by your doctor. Usual adult dose for hepatitis B or HIV: 300 mg once a day, long term. Do not stop on your own, because hepatitis can flare up badly.
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- nausea
- diarrhoea
- headache
- tiredness
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- kidney problems
- bone pain or weak bones
- severe flare of hepatitis after stopping
Do not take it, or take care, if
- Kidney disease (dose change and regular kidney tests needed)
- Weak bones (use with caution)
- Hepatitis B: never stop suddenly
Interactions
Medicines that can react with this one.
Moderate2 medicinesTake together only with care. Ask your doctor or pharmacist.
- Diclofenac
Regular or high-dose NSAIDs with tenofovir raise the risk of kidney damage.
- Gentamicin
Both can harm the kidneys; kidney function should be checked.