Elvitegravir, cobicistat, emtricitabine, and tenofovir and Pimavanserin interaction
Elvitegravir, cobicistat, emtricitabine, and tenofovir and Pimavanserin: 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 Elvitegravir, cobicistat, emtricitabine, and tenofovir (Genvoya) label · effective 2025-02-03
Alpha 1-adrenoreceptor antagonist: alfuzosin Anticonvulsants: carbamazepine, phenobarbital, phenytoin Antimycobacterial: rifampin Antipsychotics: lurasidone, pimozide Ergot Derivatives: dihydroergotamine, ergotamine, methylergonovine Herbal Products: St.
Antipsychotics: lurasidone ↑ lurasidone Coadministration with lurasidone is contraindicated due to potential for serious and/or life-threatening reactions. pimozide ↑ pimozide Coadministration with pimozide is contraindicated due to potential for serious and/or life-threatening reactions such as cardiac arrhythmias. quetiapine ↑ quetiapine Initiation of GENVOYA…
Other antipsychotics e.g., perphenazine risperidone thioridazine ↑ antipsychotic A decrease in dose of the antipsychotics that are metabolized by CYP3A or CYP2D6 may be needed when coadministered with GENVOYA.
From the Pimavanserin (NUPLAZID) label · effective 2026-06-18
Strong CYP3A4 Inhibitors: Reduce NUPLAZID dose to 10 mg once daily.
Strong CYP3A4 Inhibitors Clinical Impact: Concomitant use of NUPLAZID with a strong CYP3A4 inhibitor increases pimavanserin exposure [see Clinical Pharmacology (12.3) ] .
Intervention: If NUPLAZID is used with a strong CYP3A4 inhibitor, reduce the dosage of NUPLAZID [see Dosage and Administration (2.3) ].
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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.