Over the last few years, a program called Pre-Exposure HIV Prophylaxis (PrEP) has been developed as a medication that can prevent the spread of HIV. It is a prescription that is often paid for by insurance companies for partners of patients who have HIV. It is a tablet that is taken every day and is very effective if used properly. A non-infected person can use this medication to prevent the virus from taking hold in the body. It may prevent someone without HIV from getting it, but it is not a cure for someone already infected with HIV.