Efavirenz, in contrast to nevirapine, is associated with unfavorable progesterone and antiretroviral levels when coadministered with combined oral contraceptives.

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BACKGROUND: Effective contraception has been widely promoted for HIV-positive women. However, there are limited data on the interactions between combined

PMID: 23187949

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.