Atropine and Mexiletine interaction

Atropine and Mexiletine: the Atropine prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Atropine (Atropine Sulfate) label · effective 2026-08-31

Moderate

Mexiletine : Decreases rate of mexiletine absorption.

Drug interactionsnames MexiletineView label on DailyMed
Moderate

Mexiletine Atropine Sulfate Injection decreased the rate of mexiletine absorption without altering the relative oral bioavailability; this delay in mexiletine absorption was reversed by the combination of atropine and intravenous metoclopramide during pretreatment for anesthesia.

Drug interactionsnames MexiletineView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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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.