- Pre-exposure prophylaxis (PrEP) is the use of antiviral drugs to prevent HIV infection for people who are at high risk. A combination of Tenofovir and Emtricitabine is used.
- Post-exposure prophylaxis (PEP) is when antiretroviral medicines (ART) after taken after a potential exposure to HIV to prevent infection. It should ideally be used within 72 hours.