PEP, PrEP and Doxy-PEP Explained: What They Do and When to Ask About Them

A plain-language guide for male sex workers

PEP, PrEP and Doxy-PEP are different prevention options. They are not interchangeable, and none of them replaces regular sexual-health check-ups, condoms or conversations about safer sex.

If you are considering any of these options, speak with a qualified healthcare professional. The right choice depends on your health, the type of exposure, your medicines and the guidance available where you live.

PEP: emergency prevention after possible HIV exposure

PEP means post-exposure prophylaxis. It is a short course of HIV medication taken after a possible exposure, such as a condom breaking or sex without a barrier where HIV exposure may be possible.

PEP is time-sensitive. If you think you may need it, seek urgent medical advice immediately rather than waiting for symptoms or a routine appointment. A clinician will assess what happened and whether PEP is appropriate.

PEP is not a general substitute for ongoing prevention. It is intended for situations where a possible exposure has already happened.

PrEP: prevention before possible HIV exposure

PrEP means pre-exposure prophylaxis. It is HIV medication used by people who may have an increased chance of HIV exposure. Depending on the medicine and local guidance, it may be taken in a prescribed schedule before and around sex or on an ongoing basis.

A healthcare professional can explain which option is approved and suitable in your location. PrEP requires medical follow-up, including HIV testing and monitoring as advised by your clinician.

PrEP helps prevent HIV, but it does not prevent every STI. You may still need condoms, other barriers, vaccinations and regular testing.

Doxy-PEP: prevention for some bacterial STIs

Doxy-PEP means doxycycline post-exposure prophylaxis. It involves using the antibiotic doxycycline after sex to reduce the chance of some bacterial STIs in certain people.

Doxy-PEP is not suitable for everyone. Current recommendations focus on particular groups and circumstances, and guidance may differ by country. It does not prevent HIV, herpes or every other STI. It may also contribute to antibiotic resistance or cause side effects and drug interactions.

Do not buy antibiotics online, share medication or start Doxy-PEP without professional advice. A clinician should decide whether it is appropriate and explain how it should be used.

Questions to ask a healthcare professional

You can ask:

• Could PEP be appropriate after this possible exposure?

• Would PrEP suit my work and sexual-health needs?

• Is Doxy-PEP recommended or available where I live?

• What tests and follow-up appointments will I need?

• Could these medicines interact with anything I already take?

• What other prevention options should I consider?

You do not need to know the medical terms. Tell the clinician what happened, when it happened and what type of sexual contact occurred.

The key message

PEP is for urgent action after a possible HIV exposure. PrEP is for HIV prevention before possible exposure. Doxy-PEP may reduce some bacterial STIs for certain people, but it requires professional guidance.

This article provides general information only and is not medical advice. Recommendations, availability and eligibility vary by country. Seek urgent medical care after a possible HIV exposure, and use a qualified sexual-health service for personal advice.

Suggested resources

• STI, HIV and virus information

• Safer sex guidance

• Sexual-health testing information

• New Zealand health and support resources