Re-exposed during PEP.
Do I need to start over?
Don’t stop your medication. Keep taking it. Here’s exactly what to do next depending on the type of exposure.
Medically reviewed by Jude Ozioko, Pharmacist (PCN 024035) • Last reviewed October 2026
Re-exposed during PEP? Contact our team right now. Message Us →
You started PEP. You’re taking it daily. And then it happens again, another potential HIV exposure. Now you’re wondering whether you need to restart from day one, whether you’re still protected, whether 28 days needs to become 56. It’s a stressful situation and you need a clear answer quickly.
The first and most important thing: do not stop taking your PEP. Whatever else happens, keep taking your pills. Here’s what the guidance actually says.
PEP already in your system gives cover. The question is whether to extend it.
Once PEP has been running in your system for several days, the drugs are already at protective levels, which means they work against a new exposure in a similar way to PrEP. In many cases, especially for sexual exposures, your current course may already cover you without any change.
The decision about whether an extension is needed depends on what type of exposure happened and when during your course it occurred. This is not a decision to make on your own. Contact our team or a doctor as soon as possible. Do not stop or restart until you’ve spoken to someone.
What may be recommended based on how you were re-exposed.
Course is complete and you’ve been exposed again. Start fresh.
If your 28-day course is already finished and you face a new HIV exposure, treat it as a new emergency. The same 72-hour window applies. Start a brand new PEP course immediately through Zivoko or another clinical source. Don’t wait.
And if this is the second or third time you’ve found yourself in this situation, that’s the signal that PrEP, daily or injectable, is the right tool going forward. Our team can plan that transition with you.
Common questions about re-exposure during PEP.
QI was re-exposed during PEP. Do I need to restart the course?
Do not stop your PEP. Continue taking it exactly as prescribed. Once PEP is active in your system, it offers protection against new exposures similarly to PrEP. Whether an extension is needed depends on the type of new exposure, contact your pharmacist or doctor immediately rather than deciding alone.
QDo I need to extend my PEP course if I was re-exposed?
It depends on the exposure type. For anal sex re-exposure, continuing PEP for 48 hours beyond the new exposure is usually sufficient. For vaginal sex, a short extension of about 7 days may be recommended. For blood or sharps exposure, a full additional 28 days may be advised. This decision must be made with a clinician.
QI finished PEP and got exposed again. What should I do?
Start a brand new PEP course immediately. The same 72-hour window applies. If you find yourself needing PEP repeatedly, PrEP is the appropriate long-term tool.
Re-exposed during your PEP course?
Don’t guess. Message our team now and keep taking your tablets while you wait. We’ll assess whether your course needs adjusting and what the right next step is.
Contact Our Team Now →Keep taking your PEP. Contact a clinician. Don’t try to work this out alone.
The right answer depends on your specific exposure type and course timing. Our team can give it to you in minutes.
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