Interaction entre Darunavir et cobicistat et Lévonorgestrel et éthinylestradiol

John's wort, and certain protease inhibitors (see separate section on protease inhibitors below).

CYP3A inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice The effect of grapefruit juice on CYP3A4 enzymes (e.g., strong vs. moderate inhibition) depends on its brand, concentration, and preparation. , or ketoconazole may increase systemic exposure of the estrogen and/or progestin component of CHCs.

…non-nucleoside reverse transcriptase inhibitors: Significant decreases in systemic exposure of the estrogen and/or progestin have been noted when CHCs are co-administered with some HIV protease inhibitors (e.g., nelfinavir, ritonavir, darunavir/ritonavir, (fos)amprenavir/ritonavir, lopinavir/ritonavir, and tipranavir/ritonavir), some HCV protease inhibitors (e.g.,…

In contrast, significant increases in systemic exposure of the estrogen and/or progestin have been noted when CHCs are co-administered with certain other HIV protease inhibitors (e.g., indinavir and atazanavir/ritonavir) and with other non-nucleoside reverse transcriptase inhibitors (e.g., etravirine).

Hormonal contraceptives: Additional or alternative (non-hormonal) forms of contraception should be considered when estrogen-containing contraceptives are co-administered with PREZCOBIX or PREZCOBIX PED [see Use in Specific Populations (8.3) ] . drospirenone/ethinylestradiol ↑ drospirenone ↓ ethinylestradiol For co-administration with drospirenone, clinical monitoring…

Other progestin/estrogen contraceptives progestin: effects unknown estrogen: effects unknown No data are available to make recommendations on co-administration with other hormonal contraceptives.