Culture Bound Assumptions in Behavior Intention Models.] abstract - Many models of consumer behavior include fundamental assumptions which are rarely questioned.
Pre-exposure prophylaxis (PrEP) is a course of HIV drugs taken daily by HIV negative people most at risk of HIV to reduce their risk of HIV infection. Truvada is currently the only drug approved for use as PrEP. Truvada is a single pill that is a combination of two anti-HIV drugs, tenofovir and emtricitabine.
Itâs estimated that it takes at least seven days for PrEP to reach high levels of protection in the body. When used correctly, Truvada for PrEP provides 92%â99% reduction in HIV risk for HIV-negative individuals who take the pills every day as directed.ccording to data analysis from the iPrEx study that found PrEP to be effective: 1  For people who take 7 PrEP pills per week, their estimated level of protection is 99%. 2  For people who take 4 PrEP pills per week, their estimated level of protection is 96%.