Tenofovir Vaginal Gel Delivers HIV Prevention

The study also showed no sign of tenofovir resistance in women who became infected despite use of the drug, a benign adverse effect profile, no safety issues in pregnancy, and no increase in HIV risk behavior. During the study, all women received regular counseling that reinforced the need for condom use whenever possible. The purpose of the gel was to give women protection when a condom wasn't used.