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  • Basic Info
Licensed from
Generic: peppermint oil
an herbal product - treats Urinary tract infection, Abdominal distention, Cough, Asthma, Bad breath, Antispasmodic, Irritable bowel syndrome, Vigilance improvement in brain injury, Nasal congestion, Functional bowel disorders, Post-herpetic neuralgia, Tension headache, Nausea, Breast tenderness, Tuberculosis, Indigestion, and Stroke recovery

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DISCLAIMER: Many complementary techniques are practiced by healthcare professionals with formal training, in accordance with the standards of national organizations. However, this is not universally the case, and adverse effects are possible. Due to limited research, in some cases only limited safety information is available.


Allergic/ hypersensitivity reactions may occur from using peppermint or menthol by mouth or on the skin, including throat closing (laryngeal spasm), breathing problems (bronchial constriction/ asthma symptoms), or skin rash/ hives/ contact dermatitis. People with known allergy/ hypersensitivity to peppermint leaf or oil should avoid peppermint products.

Side Effects and Warnings

Peppermint oil may be safe in small doses, although multiple adverse effects are possible. When used on the skin, peppermint oil has been associated with allergic/ hypersensitivity reactions, skin rash/ hives/ contact dermatitis, mouth ulcers/ sores, chemical burn, and eye irritation. Lung injury has occurred following an injection of peppermint oil. Peppermint oil taken by mouth may cause headache, dizziness, heartburn, anal burning, slow heart rate, or muscle tremor. Very large doses of peppermint oil taken by mouth have resulted in muscle weakness, brain damage, and seizure.

Peppermint oil should be used cautiously by people with G6PD deficiency or gallbladder disease. Use in infants or children is not recommended due to potential toxicity.

Menthol, a constituent of peppermint oil that is included in mouthwashes, toothpastes, mentholated cigarettes, and decongestant "rubs" or lozenges, has been associated with multiple adverse effects, such as serious breathing difficulties, asthma, skin bruising (purpura), and mouth sores. Although small amounts may be safe in non- allergic adults, higher doses may be deadly in humans or cause brain damage. Use on the skin may also cause rash, severe skin damage (necrosis), or kidney damage (interstitial nephritis). Inhalation of large doses of menthol may lead to dizziness, confusion, muscle weakness, nausea, or double vision.

Pregnancy and Breastfeeding

Peppermint oil and menthol should be avoided during pregnancy and breastfeeding due to insufficient information and potential for toxicity.

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