HIV pre exposure prophylaxis is the use of antiretroviral drugs to reduce the risk of contracting HIV infection by an HIV negative person.
The level of protection from HIV infection does not differ by regimen of antiretroviral, age , sex and mode of exposure to the virus (sexual inteercourse, sharing of contaminated sharp object). Instead, the level of protection is strongly related to adherence tom HIV prophylactic medications.
HIV pre exposure prophylaxis is recommended for the following category of people:
1. Commercial sex workers
2. Injecting drug users
3. Serodiscordant couples
4. Individuals who engage in prolonged, regular anal sex
Antiretroviral drugs approved for HIV pre exposure prophylaxis is a daily dose regimen of Truvada (Tenofovir + Emtricitabine) or a daily dose of Tenofovir; which is the alternate regimen.