HIV Education

PrEP vs PEP: HIV Prevention Options Explained

PrEP and PEP are different HIV prevention strategies with different timing.

By The Venereologist Editorial TeamReviewed by Qualified medical reviewer pending verification7 min read readPublished Sep 20, 2026Updated Sep 20, 2026

What is PrEP?

PrEP is pre-exposure prophylaxis taken before potential HIV exposure to reduce risk.

What is PEP?

PEP is post-exposure prophylaxis started after possible exposure and is time-sensitive.

Who may benefit?

PrEP may suit people at ongoing risk; PEP may be appropriate after specific exposures.

What else helps?

Condoms, testing and treatment of partners remain important.

Clear answers

Frequently asked questions

Is PEP a morning-after pill?

PEP is time-sensitive and should be started as soon as possible after possible exposure.

Does PrEP prevent other STIs?

No. PrEP prevents HIV but not other STIs. Condoms and testing remain important.

Who should consider PrEP?

People at ongoing HIV risk should discuss PrEP with a clinician.