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Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-.  Last Revision: March 21, 2022. Estimated reading time: 4 minutes Drug Levels and EffectsSummary of Use during LactationPeppermint (Mentha x piperita) contains menthol, menthone, menthyl acetate as major ingredients. Minor ingredients include 1,8-cineole, pulegone, bitter substances, caffeic acid, flavonoids, and tannins. Topical peppermint gel and solutions have been studied for the prevention of pain and cracked nipples and areolas in nursing women. The peppermint preparations were more effective than placebo and expressed breastmilk, and about as effective as lanolin in some,[1-5] but not all studies.[6] A meta-analysis concluded that application of nothing or breastmilk may be superior to lanolin, but good studies are lacking.[7] Some mothers in Turkey reportedly use mint to increase their milk supply and improve the taste and quality of their milk.[8] Menthol and 1,-cineol are excreted into breastmilk in small quantities; the excretion of other components has not been studied. Peppermint is "generally recognized as safe" (GRAS) as a food by the U.S. Food and Drug Administration. Large doses can cause heartburn, nausea and vomiting. Allergic reactions, including headache, have been reported to menthol. If peppermint is used on the nipples, it should be used after nursing and wiped off before the next nursing. Dietary supplements do not require extensive pre-marketing approval from the U.S. Food and Drug Administration. Manufacturers are responsible to ensure the safety, but do not need to prove the safety and effectiveness of dietary supplements before they are marketed. Dietary supplements may contain multiple ingredients, and differences are often found between labeled and actual ingredients or their amounts. A manufacturer may contract with an independent organization to verify the quality of a product or its ingredients, but that does not certify the safety or effectiveness of a product. Because of the above issues, clinical testing results on one product may not be applicable to other products. More detailed information about dietary supplements is available elsewhere on the LactMed Web site. Drug LevelsThe flavor of peppermint comes primarily from its menthol content, but 1,8-cineol (eucalyptol) is also present. Maternal Levels. Eighteen lactating women were given 100 mg of l-menthol in a capsule on 3 test days. Milk samples were collected every 2 hours for 8 hours starting at the time of ingestion. Menthol was detected in milk at all collection times, with the average concentrations of 2.1 mcg/L at 0 hours, 4.9 mcg/L at 2 hours, 5.9 mcg/L at 4 hours, 5.8 mcg/L at 6 hours and 4.1 mcg/L at 8 hours after the dose. The average peak menthol concentration in milk was 8 mcg/L. Only small amounts of menthol glucuronide metabolites were present in the milk samples.[9] Twelve nursing mothers who were 19 weeks to 19 months postpartum ingested 100 mg of 1,8 cineole (eucalyptol) in the form of delayed-release capsules (Soledum-Klosterfrau Vertriebs GmbH, Germany) that release the drug in the intestine. Then they pumped 1 to 4 milk samples at the time they perceived the smell of eucalyptus on their breath which had been previously shown to be approximately concurrent. A total of 21 milk samples were obtained. Odor was rated by a panel of 3 to 5 experts as either smelling like eucalyptus or not. Fourteen of the samples had a distinct eucalyptus-like odor. Chemical analysis of the positive odor tests found 1,8-cineole in concentrations from 70 to about 2090 mcg/kg of milk, most in the range of 100 to 500 mcg/kg of milk. Samples with negative odor tests contained concentrations in the range of 0.98 to about 20.23 mcg/kg of milk. In one woman who donated 3 samples, the highest concentration of 71 mcg/kg occurred at 1.5 hours after ingestion, with concentrations of 1 mcg/kg before ingestion and 15 mcg/kg at 9.5 hours after ingestion.[10] Eight women had their milk analyzed for 1,8-cineole metabolites. Ten metabolites and several enantiomers of these metabolites were detected.[10,11] Eighteen nursing mothers who were nursing their infants of 8 to 53 weeks of age were served a curry dish that contained an average of 394 mcg of 1,8-cineole. Baseline 1,8-cineole concentrations in milk averaged 1.44 mcg/L (range 0.07 to 7.57 mcg/L). Milk samples contained 1,8-cineole in concentrations of 0.19 to 7.41 mcg/L at 1 hour after eating, 0.33 to 7.86 mcg/L at 2 hours after eating and 0.22 to 3.33 mcg/L at 3 hours after eating.[12] Infant Levels. Relevant published information was not found as of the revision date. Effects in Breastfed InfantsNursing mothers who were participating in an experiment on the excretion of 1,8-cineole (eucalyptol) in breastmilk took a 100 mg capsule of 1,8-cineole orally. Although instructed not to, 12 mothers breastfed their infants during the experiment. Mothers reported that none of their infants refused their milk or breastfed less than usual. Two mothers felt that their infants were more agitated a few hours after breastfeeding. A third mother reported that the infant stopped nursing from time to time and "looked puzzled", but resumed nursing. Upon repeating the experiment 6 weeks later, the infant did not react in an unusual way during breastfeeding.[13] Effects on Lactation and BreastmilkRelevant published information was not found as of the revision date. References1.Sayyah Melli M, Rashidi MR, Delazar A, et al. Effect of peppermint water on prevention of nipple cracks in lactating primiparous women: A randomized controlled trial. Int Breastfeed J. 2007;2:7. [PMC free article: PMC1865372] [PubMed: 17442122] 2.Melli MS, Rashidi MR, Nokhoodchi A, et al. A randomized trial of peppermint gel, lanolin ointment, and placebo gel to prevent nipple crack in primiparous breastfeeding women. Med Sci Monit. 2007;13:CR406–11. [PubMed: 17767120] 3.Akbari SA, Alamolhoda SH, Baghban AA, et al. Effects of menthol essence and breast milk on the improvement of nipple fissures in breastfeeding women. J Res Med Sci. 2014;19:629–33. [PMC free article: PMC4214021] [PubMed: 25364362] 4.Shanazi M, Farshbaf Khalili A, Kamalifard M, et al. Comparison of the effects of lanolin, peppermint, and dexpanthenol creams on treatment of traumatic nipples in breastfeeding mothers. J Caring Sci. 2015;4:297–307. [PMC free article: PMC4699508] [PubMed: 26744729] 5.Bolourian M, Dadgar H, Aqadousti R, et al. The effect of peppermint on the treatment of nipple fissure during breastfeeding: A systematic review. Int J Pediatr (Mashhad). 2020;8:11527–35. [CrossRef] 6.Gharakhani Bahar T, Oshvandi K, Masoumi SZ, et al. A comparative study of the effects of mint tea bag, mint cream, and breast milk on the treatment of cracked nipple in the lactation period: A randomized clinical trial study. Iran J Neonatol. 2018;9:72–9. [CrossRef] 7.Dennis CL, Jackson K, Watson J. Interventions for treating painful nipples among breastfeeding women. Cochrane Database Syst Rev. 2014;12:CD007366. [PubMed: 25506813] 8.Kaygusuz M, Gümüştakım RŞ, Kuş C, et al. TCM use in pregnant women and nursing mothers: A study from Turkey. Complement Ther Clin Pract. 2021;42:101300. [PubMed: 33412511] 9.Hausner H, Bredie WL, Mølgaard C, et al. Differential transfer of dietary flavour compounds into human breast milk. Physiol Behav. 2008;95:118–24. [PubMed: 18571209] 10.Kirsch F, Beauchamp J, Buettner A. Time-dependent aroma changes in breast milk after oral intake of a pharmacological preparation containing 1,8-cineole. Clin Nutr. 2012;31:682–92. [PubMed: 22405404] 11.Kirsch F, Buettner A. Characterisation of the metabolites of 1,8-cineole transferred into human milk: Concentrations and ratio of enantiomers. Metabolites. 2013;3:47–71. [PMC free article: PMC3901259] [PubMed: 24957890] 12.Debong MW, N'Diaye K, Owsienko D, et al. Dietary linalool is transferred into the milk of nursing mothers. Mol Nutr Food Res. 2021;65:e2100507. [PubMed: 34658145] 13.Kirsch F, Horst K, Rohrig W, et al. Tracing metabolite profiles in human milk: Studies on the odorant 1,8-cineole transferred into breast milk after oral intake. Metabolomics. 2013;3:47–71. [PMC free article: PMC3901259] [PubMed: 24957890] [CrossRef] Substance IdentificationScientific NameMentha x piperita Drug ClassBreast Feeding Lactation Complementary Therapies Food Phytotherapy Plants, Medicinal Gastrointestinal Agents Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site. ViewsIn this PageBulk DownloadLactMed Support ResourcesRelated information
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See reviews...See all... Recent ActivityHow do I dry up breast milk ASAP?Methods for Drying Up Breast Milk. Wear a supportive bra.. Discontinue breastfeeding.. Use ice packs to manage inflammation.. Occasionally express milk to relieve breast engorgement.. How much peppermint oil will decrease milk supply?How much peppermint oil could reduce milk supply? You would probably expect to see a dose-dependent effect, though only two mothers actually reported this: No effects, in little amounts. But if I use more than 10 drops in one day, it affects.
How do you use peppermint oil to stop milk production?Peppermint essential oil: One of my neighbors (and mama to 3 littles herself) who uses essential oils in all parts of her daily life gave me this tip. Get a bottle and rub a few drops on your breasts twice a day, followed by the sports bra. — Worked like a charm!
What medication can I take to dry up my breast milk?Taking drugs such as Cabergoline or Dostinex® to stop breast milk works best for mothers who have not been breastfeeding for long. Talk to your doctor, midwife or nurse if you would like more information about these drugs.
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How to use peppermint oil to dry up breast milk
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