Peppermint EO, Cautions
Should not be used internally by patients with inflammation of the gastrointestinal tract or gall bladder, or with impaired liver function. Hypersensitivity to the essential oil has been
reported.
Safety and Toxicology
Peppermint essential oil is generally regarded as safe (GRAS) when used appropriately in food, flavor, and properly diluted topical applications. It is well-tolerated in clinical settings but requires caution due to its potency.
Key Precautions:
- May cause skin irritation or sensitization in sensitive individuals; dilute properly and perform patch testing.
- Avoid application to or near the face of infants and young children due to risk of respiratory distress or laryngospasm from menthol.
- Use with caution in children under 6–7 years; avoid high concentrations.
- Possible heartburn or reflux when taken internally in sensitive individuals (enteric-coated forms help).
- Contraindicated or used with professional guidance in cases of gastroesophageal reflux disease (GERD), hiatal hernia, or certain cardiac arrhythmias.
- Generally avoided in high doses during pregnancy and breastfeeding; consult a qualified practitioner.
- Not for undiluted use; keep away from eyes and mucous membranes.
High doses may pose neurotoxic risks, but typical aromatherapy and flavoring levels are considered safe for most adults.
Warnings
Peppermint EO preparations should not be applied to the face, especially the nose, of infants or young children
Keep out of reach of children.
Precautions
General
Patients with achlorhydria (due to medication with histamine H2 receptor antagonists) should only use enteric-coated preparations.
Adverse reactions
Following internal administration, gastriccomplaints have been reported in individuals sensitive to the essential oil .
The use of non-enteric-coated essential oil preparations has occasionally caused heartburn, especially in patients suffering from reflux oesophagitis (58). Skin
rashes, headache, heartburn, perianal burning, bradycardia, muscle tremors and
ataxia have been reported as rare side-effects, usually associated with overdose
(18, 56, 60–65). Recurrent muscle pain has been associated with the ingestion
of the essential oil (66). Following external administration of Aetheroleum
Menthae Piperitae, skin irritation has been reported