Cilostazol and Darunavir interaction
Cilostazol and Darunavir: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Cilostazol label · effective 2026-01-14
Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol.
Reduce cilostazol dose to 50 mg twice daily when coadministered with strong or moderate inhibitors of CYP3A4 [see Dosage and Administration ( 2.2 ) and Clinical Pharmacology ( 12.3 )].
From the Darunavir (PREZISTA) label · effective 2025-08-29
Platelet aggregation inhibitor: ticagrelor ↑ ticagrelor Co-administration of PREZISTA/ritonavir and ticagrelor is not recommended. clopidogrel ↓ clopidogrel active metabolite Co-administration of PREZISTA/ritonavir and clopidogrel is not recommended due to potential reduction of the antiplatelet activity of clopidogrel. prasugrel ↔ prasugrel active metabolite…
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.