PEP: Emergency HIV Prevention After Exposure
Post-Exposure Prophylaxis (PEP) is a short course of medicine that can stop HIV taking hold after a possible exposure — but only if it’s started fast. Confidential, specialist-led care in Greater Noida.
What you need to know now
⚠️ Possible exposure in the last 72 hours?
PEP works best when started as early as possible — ideally within hours, and no later than 72 hours. Do not wait. Call now for an urgent confidential consultation.
PEP (Post-Exposure Prophylaxis) is emergency HIV prevention. If you may have been exposed to HIV — through sex, a condom that broke, a needle, or an assault — taking antiretroviral medicine soon afterwards can prevent the virus from establishing infection. The single most important factor is how quickly you start.
Why 72 hours is the deadline
HIV needs time to establish itself in the body after exposure. PEP works by blocking that process — but the window is narrow:
- Start as soon as possible — ideally within a few hours of exposure.
- Absolute limit is 72 hours (3 days). After 72 hours, PEP is generally not recommended because the expected benefit is very low — but you should still seek HIV testing, STI testing and prevention advice.
- Earlier = better. Effectiveness is highest in the first 24 hours and declines as time passes.
Situations PEP is considered for
PEP is considered after a realistic possibility of HIV exposure, such as:
Condom failure or unprotected sex
With a partner who is HIV-positive or of unknown status.
Sexual assault
PEP is a standard part of care after assault.
Needle or sharps injury
Including occupational (healthcare) and shared-needle exposures.
Other blood/fluid contact
Significant exposure to blood or body fluids of unknown status.
The doctor will assess the actual level of risk — not every contact needs PEP — and advise honestly either way.
What to expect with PEP
Urgent assessment
A quick, confidential evaluation of the exposure and your risk, plus a baseline HIV test to confirm current status.
Start medication fast
If PEP is appropriate, a 28-day course of antiretroviral tablets is started without delay. (These are prescription medicines taken under medical supervision — not something to self-source.)
Complete the full course
All 28 days must be taken as directed; stopping early reduces protection. Side effects, if any, are managed along the way.
Follow-up testing
Repeat HIV testing after the course confirms the outcome. If you’re at ongoing risk, this is the moment to consider switching to PrEP.
What tests may be advised before or during PEP?
If the exposure is high-risk and within 72 hours, PEP is not delayed for test results — treatment starts and the work-up is done alongside. Baseline tests confirm your current status and keep treatment safe:
| Purpose | Tests commonly advised |
|---|---|
| Current HIV status | HIV 4th-generation test; HIV RNA in selected high-risk or early-symptom cases |
| Medicine safety | Kidney function, liver function, and a blood count where clinically needed |
| Other infections | Hepatitis B & C, syphilis, gonorrhoea & chlamydia as per exposure |
| Pregnancy care | Pregnancy test and emergency-contraception discussion where relevant |
Follow-up after starting PEP
Follow-up matters — to complete the 28-day course safely and to confirm HIV has not taken hold:
- An early check for tolerance, adherence and side effects
- HIV testing after completing the course, as advised
- Further HIV testing around 4–6 weeks and 12 weeks after exposure, depending on the test used and your situation
- STI and hepatitis follow-up where relevant
- A PrEP discussion if future risk is likely
When PEP may not be needed
Not every contact needs PEP. A doctor weighs the type of exposure, the timing, the source’s status and your baseline HIV status. PEP is usually not needed for:
- Touching, hugging, sharing food or utensils, toilet seats, or other casual contact
- Intact-skin contact with no blood or genital-fluid exposure
- Sex with a partner who is HIV-positive but consistently undetectable on treatment (U=U)
- Exposure where the source is confirmed HIV-negative with no recent risk
Honest limits and aftercare
- PEP is emergency-only, not a regular method. For repeated or ongoing risk, PrEP is the right long-term prevention.
- It is not 100%, but it substantially reduces the chance of HIV when started early and taken fully.
- Consider other infections. The same exposure can carry STI or hepatitis risk, so STI testing is usually advised too.
- Missed the window? If it has been more than 72 hours, PEP won’t help — but testing and a prevention plan still matter. Reach out.
Common Questions
How long after exposure can I take PEP?
Do I need PEP after a condom break?
Can I take PEP after unprotected sex?
How effective is PEP at preventing HIV?
Is PEP confidential?
What are the side effects of PEP?
I keep having possible exposures — is PEP the answer each time?
Dr. Manuj Sondhi
With 15+ years in metabolic medicine, Dr. Manuj Sondhi cares for patients with diabetes, thyroid and weight-related conditions, and provides expert, confidential HIV, PrEP/PEP and infectious-disease care at Nirvana Clinic, Greater Noida (Delhi NCR). He believes clear information should help you understand your health — and that the right decision for your situation is best made together, in consultation.
Don’t wait — PEP is time-critical
If a possible exposure was within the last 72 hours, every hour counts. Call now for an urgent, confidential consultation. If it has been longer, still reach out — we’ll advise on testing and prevention.
Nirvana Clinic · Shop GF-93, Sun Twilight Mall, Opp. Delta 1 Metro Station, Greater Noida 201308