Doxazosin and Phenytoin interaction
Doxazosin and Phenytoin: the Doxazosin prescribing label report no clinically significant interaction between these two.
No interaction
No clinically significant interaction reported. The label studied or considered this pair and found nothing meaningful.
What the FDA labels say
From the Doxazosin (Doxazosin mesylate) label · effective 2025-11-24
No interaction
In vitro data in human plasma indicate that Doxazosin has no effect on protein binding of digoxin, warfarin, phenytoin, or indomethacin.
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.