PEP (Post Exposure Prophylaxis) is a medical treatment that should prevent HIV infection after possible HIV exposure. This treatment should be taken within 72 hours of possible HIV infection.

PEP can only offer some protection, however it can’t be guaranteed that it will stop you from becoming HIV positive.

When would I need PEP?

If you think you been exposed to HIV by having unprotected sex (vaginal or anal) or sharing injected equipment, then you should speak to your Doctor, nurse or sexual health worker in order to get more information.

PEP should be taken within 72 hours of possible HIV exposure; the sooner you start the more effective it is.

Where can I get PEP from?

You can get a PEP treatment from a Sexual Health Clinic or Accident & Emergency Department. You do not need an appointment for this; they will try to see you as soon as possible.

If it is the evening or weekend or you can’t go to your nearest Sexual Health Clinic, please go to your nearest Accident & Emergency Department, but be aware that not all of these departments are aware of PEP.

PEP is not available from your GP or at any pharmacies.

Leeds Sexual Health services

Leeds Sexual Health

1st Floor Merrion Centre
50 Merrion Way


If you think you need PEP please call the clinic on 0113 843 4495, if the clinic is closed or you can't get through please go to A&E immediately.

Contact details:

Sexual Health Line: 0113 392 0321

1st Floor Merrion Centre,
50 Merrion Way,
Leeds, West Yorkshire

Monday to Friday 8:00am - 4:00pm

Saturday 11am - 2:30pm

or contact the Health Advisers at Leeds Sexual Health: 0113 392 6058

For out of hours services please contact A&E:

Great George Street,
West Yorkshire,

0113 2432799

For more information about the kind of treatment or side effects please contact your Doctor, nurse or Sexual Health worker.

Click to access our Leeds Sexual Health PEP Patient Information leaflet.

Also check ways to prevent HIV and remember to have regular sexual health checks as not all sexually transmitted infections have symptoms but they can increase HIV transmission.