Cholestyramine and Doxercalciferol interaction
Cholestyramine and Doxercalciferol: the Doxercalciferol prescribing label describes 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 Doxercalciferol label · effective 2026-02-25
Table 4: Clinically Significant Drug Interactions with Doxercalciferol Capsules Cholestyramine Clinical Impact Cholestyramine has been reported to reduce intestinal absorption of fat-soluble vitamins.
Intervention Administer doxercalciferol capsules at least 1 hour before or 4 to 6 hours after taking cholestyramine.
Cholestyramine: May impair absorption of doxercalciferol capsules.
Administer doxercalciferol capsules at least 1 hour before or 4 to 6 hours after taking cholestyramine.
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.