Food and medicine interaction

Enteric-coated peppermint oil capsules and antacids and acid reducers (H2 blockers, proton pump inhibitors)

TheoreticalEvidence level: theoretical. Suggested by how the food and the drug work, or by lab data. Not shown in people.

Last reviewed

What can happen

Acid reducers may cause enteric-coated peppermint oil capsules to open in the stomach instead of the intestine, raising the chance of heartburn.

Why it happens
Enteric coatings are designed to resist stomach acid; NCCIH notes peppermint oil capsules are often enteric-coated to reduce heartburn, and a less acidic stomach can weaken that protection.
At ordinary food amounts
Peppermint tea and food amounts are not affected; this is about capsules.

What to do

If you take antacids or acid reducers, ask your pharmacist how to time peppermint oil capsules or whether to use them at all.

Never stop or change a prescribed medicine without talking to the prescriber.

Common questions

Can I have enteric-coated peppermint oil capsules while taking acid reducers?

If you take antacids or acid reducers, ask your pharmacist how to time peppermint oil capsules or whether to use them at all. Peppermint tea and food amounts are not affected; this is about capsules.

Sources

  1. National Center for Complementary and Integrative Health. Peppermint Oil: Usefulness and Safety.

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