Comparison of Tenofovir Vaginal Gel and Film Formulations (FAME-05)

This is an open label comparative study of tenofovir gel and film in 10 healthy sexually active women without active female genital tract disorders. The women will receive a single dose of each formulation - tenofovir gel (1%;equivalent to 40 mg in 4ml's of gel) and tenofovir film (1.3%;40 mg) - in a crossover study design to determine the pharmacokinetics of tenofovir in the blood, cervical tissue, and cervicovaginal fluid (primary objective).