Interaction Details

There were no interactions found between Chlorthalidone and Peppermint. This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.


Still looking for more information about combining Chlorthalidone and Peppermint? Ask Dr. Brian Staiger about it by contacting him directly.

Pharmacist Analysis

Peppermint and peppermint oil have a number of theoretical interactions due to several lab and animal studies suggesting it can inhibit a variety of CYP metabolizing enzymes in the liver, including:

  • CYP2C9
  • CYP3A4
  • CYP2C19
  • CYP1A2

However, many of these interactions have not been seen in humans, and the likelihood of them being clinically significant is low. They are nevertheless important to be aware of.

There is no known interaction between peppermint and the drug in question here. They are considered safe to combine.

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Peppermint Overview

Peppermint Peppermint is a perennial herb that is native to Europe and Asia. It is a member of the mint family (Lamiaceae) and is known for its fragrant, minty aroma and distinctive, spear-shaped leaves. Peppermint is commonly used in cooking and aromatherapy, as well as in a variety of personal care products. It has a refreshing, cool, and slightly sweet flavor. In traditional medicine, peppermint is believed to have a number of health benefits. It is thought to have anti-inflammatory and pain-relieving effects, and it is sometimes used to treat a variety of conditions, including digestive problems, respiratory infections, and skin disorders. Peppermint is also commonly used as a natural treatment for colds and flu due to its expectorant properties. Some peppermint supplements are marketed specifically towards those suffering from IBS (irritable bowel syndrome) as evidence shows it can help reduce symptoms in some individuals.
See More Information Regarding Peppermint

Chlorthalidone Overview

  • Chlorthalidone, a 'water pill,' is used to treat high blood pressure and fluid retention caused by various conditions, including heart disease. It causes the kidneys to get rid of unneeded water and salt from the body into the urine.

  • This medicine is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

See More Information Regarding Chlorthalidone

Peppermint - More Interactions

Peppermint interacts with 753 drugs

Interaction Rating Key

These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.

Major The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur.
Moderate Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur.
Minor Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction.
Unknown No interactions have been reported or no interaction data is currently available.

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Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Drug descriptions are provided by MedlinePlus.

Ask A Pharmacist About Your Herbal Questions!

Dr. Brian Staiger, PharmD

In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!

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