Drug & supplement interaction

Peppermint + Difelikefalin Acetate

Difelikefalin Acetate brand name: Korsuva.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Peppermint and Difelikefalin Acetate in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Peppermint and Difelikefalin Acetate

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Difelikefalin Acetate and Peppermint in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Peppermint safety at a glance

Peppermint overall Use caution Peppermint tea and culinary use are generally safe, but concentrated oil should be used carefully.

Pregnancy Likely Safe When used orally in amounts commonly found in foods. There is insufficient information available about the safety of using peppermint in medicinal amounts durin... Read the full pregnancy detail

Breastfeeding Likely Safe When used orally in amounts commonly found in foods. There is insufficient information available about the safety of using peppermint in medicinal amounts durin... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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.

— Dr. Brian Staiger, PharmD, BCPS

Still wondering about combining Difelikefalin Acetate and Peppermint? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

Keep it in perspective

Peppermint Does Interact With Other Medications

Peppermint has 731 moderate, 65 minor known drug interactions in our database — Difelikefalin Acetate isn’t one of them. If you take anything else, check it against the full list below.

Moderate 731 Minor 65 No known interaction 2,034 (incl. Difelikefalin Acetate)

Taking anything else?

Check Another of Your Medications Against Peppermint

Covers the 2,830 medications we’ve checked against Peppermint. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Peppermint and Difelikefalin Acetate May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

Diarrhea / Nausea Additional detail
Peppermint

“Orally, topically, or rectally, peppermint oil is generally well tolerated. Inhaled,

peppermint oil seems to be well tolerated. Intranasally, no adverse effects have been reported. However, a thorough evaluation of safety outcomes has not been conducted.”

Peppermint · Natural Medicines adverse-effect record, reported in dermatitis.
“Orally, peppermint oil can cause heartburn, nausea and vomiting, anal or perianal burning, abdominal pain, belching, dry mouth, diarrhea, and increased appetite. Enteric-coated capsules might help to reduce the incidence of heartburn. However, in one clinical study, a specific enteric-coated formulation of peppermint oil (Pepogest;”

Peppermint · Natural Medicines adverse-effect record, reported in diarrhea.
6 sources cited

3803. Pittler MH, Ernst E. Peppermint oil for irritable bowel syndrome: a critical review and metaanalysis. Am J Gastroenterol 1998;93:1131-5. PubMed

6740. Madisch A, Heydenreich CJ, Wieland V, et al. Treatment of functional dyspepsia with a fixed peppermint oil and caraway oil combination preparation as compared to cisapride. A multicenter, reference-controlled, double-blind equivalence study. Arzneimittel

6741. May B, Kuntz HD, Kieser M, Kohler S. Efficacy of a fixed peppermint oil/caraway oil combination in non-ulcer dyspepsia. Arzneimittelforschung 1996;46:1149-53.

6742. Micklefield GH, Greving I, May B. Effects of peppermint oil and caraway oil on gastroduodenal motility. Phytother Res 2000;14:20-3. DOI

10075. May B, Kohler S, Schneider B. Efficacy and tolerability of a fixed combination of peppermint oil and caraway oil in patients suffering from functional dyspepsia. Aliment Pharmacol Ther 2000;14:1671-7. PubMed

11779. Rees WD, Evans BK, Rhodes J. Treating irritable bowel syndrome with peppermint oil. Br Med J 1979;2:835-6. PubMed
Difelikefalin Acetate

Listed in the ADVERSE REACTIONS section of the FDA label for Difelikefalin Acetate. Read the label on DailyMed ›
Headache Additional detail
Peppermint
“Orally, headache has been reported rarely.”

Peppermint · Natural Medicines adverse-effect record, reported in cluster headache.
1 source cited

102602. Weerts ZZRM, Masclee AAM, Witteman BJM, et al. Efficacy and safety of peppermint oil in a randomized, double-blind trial of patients with irritable bowel syndrome. Gastroenterology. 2020;158(1):123-136. PubMed
Difelikefalin Acetate

Listed in the ADVERSE REACTIONS section of the FDA label for Difelikefalin Acetate. Read the label on DailyMed ›

Reported for Peppermint but not commonly for Difelikefalin Acetate: heartburn, liver problems, shortness of breath and increased appetite.

Effects for Difelikefalin Acetate come from the ADVERSE REACTIONS section of its FDA label; effects for Peppermint come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Peppermint in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used orally in amounts commonly found in foods. There is insufficient information available about the safety of using peppermint in medicinal amounts during pregnancy or lactation; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Overlapping uses

What Difelikefalin Acetate Is Prescribed For, and What Peppermint Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Difelikefalin Acetate is a prescription medicine with approved uses on its FDA label. Peppermint is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Difelikefalin Acetate is prescribed for: Korsuva (difelikefalin) injection is approved to treat moderate-to-severe pruritus (itching) associated with chronic kidney disease (CKD-aP) in adults who are on hemodialysis. This type of itching is related to kidney disease itself and can be persistent and distressing. Korsuva is not recommended for people on peritoneal dialysis, as it has not been studied in that population.

Peppermint has been studied for:

Pruritus studied, not established Peppermint has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

Peppermint for pruritus

Some preliminary clinical studies suggest that topical peppermint oil improves itching of various etiologies.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Difelikefalin Acetate on your own; if you are taking Peppermint for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

One more smart check

Taking Peppermint as Part of a Dietary Supplement Product? Check It for Interactions

We hold 1,980 real supplement products containing Peppermint, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Peppermint. Even though Peppermint itself has no known interaction with Difelikefalin Acetate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Peppermint and Difelikefalin Acetate Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Peppermint

Top 10%

#92 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Difelikefalin Acetate

Steady interest

#2,668 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Peppermint reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Peppermint and Difelikefalin Acetate records this page draws on were last updated July 10, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Peppermint

What is Peppermint?

Irritable bowel syndrome (IBS)
Indigestion and gas
Nausea
Tension headache (topical oil)
Colds and congestion
Freshening breath

Peppermint is a popular herb with the best evidence supporting enteric-coated peppermint oil for easing IBS symptoms. It is generally well tolerated for most adults, but it can cause heartburn and is not recommended in concentrated oil form for infants and young children. Check with your pharmacist or doctor before using it regularly, especially during pregnancy or breastfeeding.

Mentha x piperita · Lamiaceae · Leaves and essential oil · Tea, capsules (including enteric-coated peppermint oil), essential oil, tincture, topical creams

An interaction check asks whether these two react with each other — it does not ask whether Peppermint is a good idea for someone in your situation. Here is what our Peppermint record says about it on its own.

Peppermint: dosing

There is no single official dose for peppermint, and the right amount depends on the form and the reason you are using it. For IBS, products usually come as standardized enteric-coated peppermint oil capsules with directions on the label. Teas are made by steeping the dried leaves in hot water.Because product strength varies widely, the best approach is to follow the directions on your specific product and not to exceed the recommended amount. Concentrated essential oil should never be swallowed unless it is in a product made for that purpose.

From our Peppermint monograph — the full record covers uses, side effects and every documented interaction.

Read the full Peppermint monograph & all interactions

Medication

About Difelikefalin Injection

What Is Difelikefalin Injection Used For?

Brand name: Korsuva

Korsuva (difelikefalin) injection is approved to treat moderate-to-severe pruritus (itching) associated with chronic kidney disease (CKD-aP) in adults who are on hemodialysis. This type of itching is related to kidney disease itself and can be persistent and distressing.

Korsuva is not recommended for people on peritoneal dialysis, as it has not been studied in that population.

See full Difelikefalin Injection drug information

Keep checking

Other Drugs & Peppermint

Browse every other medication we’ve checked against Peppermint — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

731Moderate

65Minor

2,033No known interaction

731 Moderate 65 Minor 2,033 No interaction

Moderate

731 interactions

Showing 60 of 731 moderate interactions — see all 731 on the Peppermint page.

Minor

65 interactions

Showing 60 of 65 minor interactions — see all 65 on the Peppermint page.

No interaction 2,033 drugs checked — show the list

We also checked Peppermint against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,033 medications checked with no known interaction — see the full Peppermint list.

See the full Peppermint interactions page

See every supplement checked against Difelikefalin Acetate, ranked by severity

Evidence & sources

Peppermint References

The 41 references that drive our Peppermint monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Liu JH, Chen GH, Yeh HZ, et al. Enteric-coated peppermint-oil capsules in the treatment of irritable bowel syndrome: a prospective, randomized trial. J Gastroenterol 1997;32:765-8. PubMed
Pittler MH, Ernst E. Peppermint oil for irritable bowel syndrome: a critical review and metaanalysis. Am J Gastroenterol 1998;93:1131-5. PubMed
Kline RM, Kline JJ, Di Palma J, Barbero GJ. Enteric-coated, pH-dependent peppermint oil capsules for the treatment of irritable bowel syndrome in children. J Pediatr 2001;138:125-8. PubMed
Madisch A, Heydenreich CJ, Wieland V, et al. Treatment of functional dyspepsia with a fixed peppermint oil and caraway oil combination preparation as compared to cisapride. A multicenter, reference-controlled, double-blind equivalence study. Arzneimittel
May B, Kuntz HD, Kieser M, Kohler S. Efficacy of a fixed peppermint oil/caraway oil combination in non-ulcer dyspepsia. Arzneimittelforschung 1996;46:1149-53.
Micklefield GH, Greving I, May B. Effects of peppermint oil and caraway oil on gastroduodenal motility. Phytother Res 2000;14:20-3. DOI
Morton CA, Garioch J, Todd P, et al. Contact sensitivity to menthol and peppermint in patients with intra-oral symptoms. Contact Dermatitis 1995;32:281-4. PubMed
May B, Kohler S, Schneider B. Efficacy and tolerability of a fixed combination of peppermint oil and caraway oil in patients suffering from functional dyspepsia. Aliment Pharmacol Ther 2000;14:1671-7. PubMed
Nash P, Gould SR, Bernardo DE. Peppermint oil does not relieve the pain of irritable bowel syndrome. Br J Clin Pract 1986;40:292-3. DOI
Rees WD, Evans BK, Rhodes J. Treating irritable bowel syndrome with peppermint oil. Br Med J 1979;2:835-6. PubMed
Davies SJ, Harding LM, Baranowski AP. A novel treatment of postherpetic neuralgia using peppermint oil. Clin J Pain 2002;18:200-2. PubMed
Weston CF. Anal burning and peppermint oil. Postgrad Med J 1987;63:717. PubMed
Dresser GK, Wacher V, Wong S, et al. Evaluation of peppermint oil and ascorbyl palmitate as inhibitors of cytochrome P4503A4 activity in vitro and in vivo. Clin Pharmacol Ther 2002;72:247-55. PubMed
Wacher VJ, Wong S, Wong HT. Peppermint oil enhances cyclosporine oral bioavailability in rats: comparison with D-alpha-tocopheryl poly(ethylene glycol 1000) succinate (TPGS) and ketoconazole. J Pharm Sci 2002;91:77-90.
Lawson MJ, Knight RE, Tran K, et al. Failure of enteric-coated peppermint oil in the irritable bowel syndrome: a randomized double-blind crossover study. J Gastroenterol Hepatol 1988;3:235-8. DOI
Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
Maliakal PP, Wanwimolruk S. Effect of herbal teas on hepatic drug metabolizing enzymes in rats. J Pharm Pharmacol 2001;53:1323-9. PubMed
Rogers SN, Pahor AL. A form of stomatitis induced by excessive peppermint consumption. Dent Update 1995;22:36-7.
Cappello G, Spezzaferro M, Grossi L, et al. Peppermint oil (Mintoil) in the treatment of irritable bowel syndrome: a prospective double blind placebo-controlled randomized trial. Dig Liver Dis 2007;39:530-6. PubMed
Moghadam BK, Gier R, and Thurlow T. Extensive oral mucosal ulcerations caused by misuse of a commercial mouthwash. Cutis 1999;64:131-134.
Andersen, K. E. Contact allergy to toothpaste flavors. Contact Dermatitis 1978;4(4):195-198. PubMed
Barnard, D. R. Repellency of essential oils to mosquitoes (Diptera: Culicidae). J Med Entomol. 1999;36(5):625-629. PubMed
Tamir, S., Davidovich, Z., Attal, P., and Eliashar, R. Peppermint oil chemical burn. Otolaryngol.Head Neck Surg. 2005;133(5):801-802. PubMed
Kalavala, M., Hughes, T. M., Goodwin, R. G., Anstey, A. V., and Stone, N. M. Allergic contact dermatitis to peppermint foot spray. Contact Dermatitis 2007;57(1):57-58. PubMed
Vermaat, H., van Meurs, T., Rustemeyer, T., Bruynzeel, D. P., and Kirtschig, G. Vulval allergic contact dermatitis due to peppermint oil in herbal tea. Contact Dermatitis 2008;58(6):364-365. PubMed
Merat, S., Khalili, S., Mostajabi, P., Ghorbani, A., Ansari, R., and Malekzadeh, R. The effect of enteric-coated, delayed-release peppermint oil on irritable bowel syndrome. Dig.Dis.Sci. 2010;55(5):1385-1390. PubMed
Tran, A., Pratt, M., and DeKoven, J. Acute allergic contact dermatitis of the lips from peppermint oil in a lip balm. Dermatitis 2010;21(2):111-115. DOI
Hitz, Lindenmuller, I and Lambrecht, J. T. Oral care. Curr Probl.Dermatol 2011;40:107-115.
Shavakhi, A., Ardestani, S. K., Taki, M., Goli, M., and Keshteli, A. H. Premedication with peppermint oil capsules in colonoscopy: a double blind placebo-controlled randomized trial study. Acta Gastroenterol Belg 2012;75(3):349-353.
Lech, Y., Olesen, K. M., Hey, H., Rask-Pedersen, E., Vilien, M., and Ostergaard, O. [Treatment of irritable bowel syndrome with peppermint oil. A double- blind study with a placebo]. Ugeskr.Laeger 10-3-1988;150(40):2388-2389.
Parys, B. T. Chemical burns resulting from contact with peppermint oil mar: a case report. Burns Incl.Therm.Inj. 1983;9(5):374-375. PubMed
Bayat R, Borici-Mazi R. A case of anaphylaxis to peppermint. Allergy Asthma Clin Immunol. 2014;10(1):6. PubMed
Rich G, Shah A, Koloski N, et al. A randomized placebo-controlled trial on the effects of Menthacarin, a proprietary peppermint- and caraway-oil-preparation, on symptoms and quality of life in patients with functional dyspepsia. Neurogastroenterol Motil 2 PubMed
Douros A, Bronder E, Andersohn F, et al. Herb-Induced Liver Injury in the Berlin Case-Control Surveillance Study. Int J Mol Sci 2016;17(1). PubMed
Begas E, Tsioutsiouliti A, Kouvaras E, et al. Effects of peppermint tea consumption on the activities of CYP1A2, CYP2A6, Xanthine Oxidase, N-acetyltranferase-2 and UDP-glucuronosyltransferases-1A1/1A6 in healthy volunteers. Food Chem Toxicol 2017;100:80-9 PubMed
Cash BD, Epstein MS, Shah SM. A Novel Delivery System of Peppermint Oil Is an Effective Therapy for Irritable Bowel Syndrome Symptoms. Dig Dis Sci 2016;61(2):560-71. PubMed
Elsaie LT, El Mohsen AM, Ibrahim IM, Mohey-Eddin MH, Elsaie ML. Effectiveness of topical peppermint oil on symptomatic treatment of chronic pruritus. Clin Cosmet Investig Dermatol 2016;9:333-8. PubMed
Wu J, Xu R, Zhan R, et al. Effective symptomatic treatment for severe and intractable pruritus associated with severe burn-induced hypertrophic scars: A prospective, multicenter, controlled trial. Burns 2016;42(5):1059-66. PubMed
Weerts ZZRM, Masclee AAM, Witteman BJM, et al. Efficacy and safety of peppermint oil in a randomized, double-blind trial of patients with irritable bowel syndrome. Gastroenterology. 2020;158(1):123-136. PubMed
Nee J, Ballou S, Kelley JM, et al. Peppermint Oil Treatment for Irritable Bowel Syndrome: A Randomized Placebo-Controlled Trial. Am J Gastroenterol 2021;116(11):2279-2285. PubMed
Ingrosso MR, Ianiro G, Nee J, et al. Systematic review and meta-analysis: efficacy of peppermint oil in irritable bowel syndrome. Aliment Pharmacol Ther 2022;56(6):932-41. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Peppermint and Difelikefalin Acetate Together: Common Questions

Is it safe to take Peppermint with Difelikefalin Acetate?

We do not list a known interaction between Peppermint and Difelikefalin Acetate. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

Do Peppermint and Difelikefalin Acetate have any of the same side effects?

Yes — our sources link each of them separately to 3 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.

Are Peppermint and Difelikefalin Acetate used for the same thing?

They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Peppermint in each. That is a conversation for your prescriber, especially if Difelikefalin Acetate is being adjusted to a target.

Does Peppermint interact with any other medications?

Yes. Peppermint has 796 documented drug interactions in our database — Difelikefalin Acetate is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Peppermint monograph Uses, safety profile, and every drug interaction in one place Difelikefalin Injection drug information The full plain-English guide to this medication Difelikefalin Acetate supplement interactions Every supplement checked against Difelikefalin Acetate, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 41 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.