PEP treatment for HIV in Zakir Nagar, New Delhi What is PEP? PEP stands for post-exposure prophylaxis. It means taking antiretroviral medicines (ART) after being potentially exposed to HIV to prevent becoming infected. PEP must be started within 72 hours after a recent possible exposure to HIV, but the sooner you start PEP, the better. … Continue reading PEP treatment for HIV in Zakir Nagar, New Delhi