Differential Diffusions of Indinavir and Lopinavir in Genital Secretions of Human Immunodeficiency Virus-Infected Women

Abstract
Plasma and cervicovaginal secretion (CVS) samples were collected from 19 human immunodeficiency virus type 1-infected women on lopinavir- or indinavir-containing regimens. Lopinavir and indinavir were detectable in 29 and 93% of CVS samples, respectively, a finding that may be ascribed to these drugs' differences in protein binding and pK a . The relationship between lopinavir and indinavir pharmacodynamics and viral evolution in the female genital tract should be assessed over time.