Alosetron and Megestrol interaction

Alosetron and Megestrol: the Alosetron prescribing label reports 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 Alosetron (LOTRONEX) label · effective 2026-06-30

No interaction

Another study showed that alosetron had no clinically significant effect on plasma concentrations of the oral contraceptive agents ethinyl estradiol and levonorgestrel (CYP3A4 substrates).

Drug interactionsby drug classView label on DailyMed

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Not 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.