Cautions with other medicines
Some medicines may affect how peppermint oil works.
Do not take indigestion medicines up to 2 hours before or after you take peppermint oil capsules. These include:
- antacids like Gaviscon (alginic acid) or Pepto-Bismol (bismuth subsalicylate)
- proton pump inhibitors (PPIs) such as omeprazole or lansoprazole
- H2 blockers such as nizatidine or famotidine
These can stop peppermint oil working as it should.
These are not all the medicines that may cause problems if you take them with peppermint oil. For a full list check the leaflet inside your medicine packet.
Mixing peppermint oil with herbal remedies or supplements
There is not enough information to know if complementary medicines and herbal remedies are safe to take with peppermint oil. They are not tested in the same way as pharmacy and prescription medicines. They're generally not tested for the effect they have on other medicines.
Important: Medicine safety
Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.