Colchicine and Elvitegravir, cobicistat, emtricitabine, and tenofovir interaction
Colchicine and Elvitegravir, cobicistat, emtricitabine, and tenofovir: 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 Colchicine label · effective 2026-03-18
Patients with renal or hepatic impairment should not be given colchicine capsules with drugs that inhibit both P-glycoprotein and CYP3A4 inhibitors [see Drug Interactions (7) ] .
• Drug interaction with dual P-gp and CYP3A4 inhibitors: Co-administration of colchicine with dual P-gp and CYP3A4 inhibitors has resulted in life-threatening interactions and death ( 5.3 , 7 ).
Therefore, concomitant use of colchicine capsules and inhibitors of CYP3A4 or P-glycoprotein should be avoided [see Drug Interactions (7) ] .
Fatal drug interactions have been reported when colchicine is administered with clarithromycin, a dual inhibitor of CYP3A4 and P-glycoprotein.
• Concomitant use of colchicine capsules and inhibitors of CYP3A4 or P-gp should be avoided if possible.
From the Elvitegravir, cobicistat, emtricitabine, and tenofovir (Genvoya) label · effective 2025-02-03
Anti-gout: colchicine ↑ colchicine GENVOYA is not recommended to be coadministered with colchicine to patients with renal or hepatic impairment.
Treatment of gout-flares – coadministration of colchicine in patients receiving GENVOYA: 0.6 mg (1 tablet) × 1 dose, followed by 0.3 mg (half tablet) 1 hour later.
Prophylaxis of gout-flares – coadministration of colchicine in patients receiving GENVOYA: If the original regimen was 0.6 mg twice a day, the regimen should be adjusted to 0.3 mg once a day.
Treatment of familial Mediterranean fever – coadministration of colchicine in patients receiving GENVOYA: Maximum daily dosage of 0.6 mg (may be given as 0.3 mg twice a day).
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
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.