Darunavir and cobicistat and Lenacapavir interaction
Darunavir and cobicistat and Lenacapavir: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Lenacapavir (Sunlenca) label · effective 2026-08-27
Antiretroviral Agents: atazanavir/cobicistat Drug-drug interaction study was conducted. atazanavir/ritonavir ↑ lenacapavir (atazanavir/cobicistat, atazanavir/ritonavir) Concomitant administration of efavirenz, nevirapine, or tipranavir/ritonavir may result in loss of therapeutic effect and development of resistance. efavirenz nevirapine tipranavir/ritonavir ↓…
Effect of SUNLENCA on Other Drugs Lenacapavir is a moderate inhibitor of CYP3A.
Anticoagulants: Direct Oral Anticoagulants (DOACs) rivaroxaban dabigatran edoxaban ↑ DOAC Refer to the DOAC prescribing information for concomitant administration with moderate CYP3A inhibitors and/or P-gp inhibitors.
…triazolam is concomitantly administered with SUNLENCA 7.4 Drugs without Clinically Significant Interactions with SUNLENCA Based on drug interaction studies conducted with SUNLENCA, no clinically significant drug interactions have been observed with: darunavir/cobicistat, cobicistat, famotidine, pitavastatin, rosuvastatin, tenofovir alafenamide, and voriconazole.
From the Darunavir and cobicistat (PREZCOBIX) label · effective 2026-02-01
PREZCOBIX or PREZCOBIX PED is not recommended in combination with other antiretroviral drugs that require pharmacokinetic boosting.
Co-administration of PREZCOBIX or PREZCOBIX PED and other drugs that inhibit CYP3A may result in increased plasma concentrations of darunavir and cobicistat (see Table 2 ).
For additional recommendations on use of PREZCOBIX or PREZCOBIX PED with other antiretroviral agents, [see Drug Interactions (7) ] .
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.