How do prep and PEP drugs help prevent HIV infection?

PrEP and PEP drugs help stop the copying process, helping to prevent HIV from establishing itself as a chronic infection in the body. The goal of both PrEP and PEP is to prevent new HIV infections, and each form of prophylaxis is highly effective. PrEP can reduce your chance of an HIV infection by up to 99 percent during sex.

How do you prescribe Pep if you have HIV?

Use CDC's comprehensive guidelines for prescribing PEP. PEP (post-exposure prophylaxis) is the use of antiretroviral medication to prevent HIV in a person without HIV who may have been recently exposed to HIV. Exposure typically occurs through sex or sharing syringes (or other injection equipment) with someone who has or might have HIV.

Can prep be used as a comprehensive HIV prevention plan?

Consider PrEP as part of a comprehensive HIV prevention plan that includes discussing how to take PrEP as prescribed, proper condom use, screening for other sexually transmitted infections (STIs), and other risk-reduction methods. Before prescribing PrEP, perform the required baseline assessments.