Penetration of atazanavir in seminal plasma of men infected with human immunodeficiency virus type 1.

In this exploratory study, the human immunodeficiency virus (HIV) protease inhibitor atazanavir was detected in seminal plasma in 15 out of 15 HIV-infected men taking an atazanavir-containing regimen. However, this penetration was limited and variable, and the median seminal/blood plasma ratio was only 0.1.