Exemestane and Vitamin D interaction
Exemestane and Vitamin D: the Exemestane prescribing label mentions this combination without an instruction to avoid it or change the dose.
Mentioned, no instruction to avoid. Worth knowing; rarely a reason to change anything on its own.
What the FDA labels say
From the Exemestane label · effective 2025-12-24
• Routine assessment of 25-hydroxy vitamin D levels prior to the start of aromatase inhibitor treatment should be performed ( 5.2 ).
Concomitant use of bisphosphonates, vitamin D supplementation, and calcium was not allowed.
Vitamin D Assessment Routine assessment of 25-hydroxy vitamin D levels prior to the start of aromatase inhibitor treatment should be performed, due to the high prevalence of vitamin D deficiency in women with early breast cancer (EBC).
Women with vitamin D deficiency should receive supplementation with vitamin D.
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.