Can I switch between daily and event-based dosing?

PrEP dosing is very easy to change.

PrEP can adapt to your needs at different times. You can stop and restart PrEP, or change the way you take it.

Talk to your clinic about ways of taking PrEP and about how to stop or restart when you need to.

See pages 15 to 20 about daily and event-based dosing.

Having active hepatitis B needs daily PrEP, every day.

Stopping PrEP can lead to rapid inflammation in the liver.

This can be very serious. It can lead to hospitalisation and in rare cases can be fatal.

Is PEP recommended if I am on PrEP?

PEP stands for post-exposure prophylaxis and involves taking a combination of three HIV meds for one month.

PEP is now used less often. But if you need PEP, the earlier you start, the more likely it is to work.

Ideally, PEP should be started within 24 hours.

In the UK PEP can be started up to 72 hours after sex.

There is no benefit from starting PEP after more than 72 hours.

• If you have a risk when you haven't been taking PrEP, or enough PrEP, contact a doctor to discuss whether you might need PEP.

February 2024