Who should not use peppermint oil?
John Hall
Updated on May 10, 2026
People with a specific enzyme deficiency, called G6PD deficiency, should avoid using peppermint as an extract or oil in aromatherapy. People taking certain medications. Peppermint oil aromatherapy can inhibit an enzyme called CYP3A4, which is responsible for breaking down many types of medication.
Who should not take peppermint oil?
Peppermint oil has been used for stomach/intestinal disorders (such as upset stomach, cramps, irritable bowel syndrome-IBS). This product should not be used by children younger than 8 years. Some herbal/diet supplement products have been found to contain possibly harmful impurities/additives.When should you not use peppermint oil?
It's best to take such drugs at least two hours after taking enteric-coated peppermint oil products. A stomach condition called achlorhydria, in which the stomach doesn't produce hydrochloric acid, also may hasten the coating's breakdown. So people with the condition are advised against using peppermint oil.What medications does peppermint interfere with?
Peppermint may interact with some drugs, including:
- cyclosporine, taken by transplant recipients to prevent organ rejection.
- drugs that reduce stomach acid.
- ulcer medications.
- calcium channel blockers and other drugs used for hypertension or high blood pressure.
Are there any side effects to peppermint oil?
Possible side effects of peppermint oil taken orally include heartburn, nausea, abdominal pain, and dry mouth. Rarely, peppermint oil can cause allergic reactions. Capsules containing peppermint oil are often enteric-coated to reduce the likelihood of heartburn.Peppermint Oils: 5 Fast Facts
Does peppermint raise blood pressure?
Peppermint is a popular flavoring agent, and peppermint tea help relax tension and could lower blood pressure.Why is peppermint not good for you?
The menthol in peppermint can cause adverse side effects in large amounts. While it's difficult to consume too much menthol by drinking peppermint tea, it's not recommended for people with certain health conditions. Peppermint can help with digestion and stomach pain but can worsen acid reflux.Is peppermint a blood thinner?
Some herbs and spices that contain salicylates (a natural blood thinner) include cayenne pepper, cinnamon, curry powder, dill, ginger, licorice, oregano, paprika, peppermint, thyme and turmeric. Meanwhile there are fruits that can aid in blood thinning.Is peppermint an anti inflammatory?
Peppermint has antibacterial, antiviral and anti-inflammatory properties. Because of this, peppermint tea may fight clogged sinuses due to infections, the common cold and allergies ( 15 ).Is peppermint oil toxic?
Contraindications, Adverse Effects, and InteractionsLike many essential oils, peppermint oil can be toxic and even lethal at excessive dosages; it has been associated with interstitial nephritis and acute renal failure.
Can you be allergic to peppermint oil?
Peppermint oil can indeed cause an allergic reaction in those sensitive to it, whether used internally or externally. In rare cases it can even cause anaphylactic shock when taken internally, causing difficulty swallowing and breathing, tongue and lip swelling, and ulcers or blisters in the mouth.Is peppermint good for IBS?
About peppermint oilPeppermint oil is a type of medicine called an antispasmodic. It helps relieve stomach cramps, bloating and farting (flatulence), particularly if you have irritable bowel syndrome (IBS). It works by helping the muscle of the bowel wall to relax.