Published March 13, 1986; Revised March 13, 1990, September 1, 1990, and July 14, 1993.
List of German Commission E Monographs (Phytotherapy)
Menthae piperitae aetheroleum, peppermint oil.
Peppermint oil consists of the essential oil of Mentha piperita L. [Fam. Lamiaceae], obtained by steam distillation from freshly harvested, flowering sprigs, and its preparations in effective dosage.
Peppermint oil contains a minimum of 4.5 percent and a maximum of 10 percent (w/w) esters, calculated as menthyl acetate, at least 44 percent (w/w) free alcohols, calculated as menthol and a minimum of 15 percent and maximum of 32 percent (w/w) ketones, calculated as menthone.
Spastic discomfort of the upper gastrointestinal tract and bile ducts, irritable colon, catarrhs of the respiratory tract, inflammation of the oral mucosa. External:
Myalgia and neuralgia. Contraindications Obstruction of bile ducts, gallbladder inflammation, severe liver damage. In case of gallstones, to be used only after consultation with a physician.
Preparations containing peppermint oil should not be used on the face, particularly the nose, of infants and small children.
Unless otherwise prescribed:
Average daily dosage:
6 - 12 drops. For inhalation:
3 - 4 drops in hot water. For irritable colon:
Average single dose 0.2 ml;
Average daily dose 0.6 ml in enterically coated form. External:
Some drops rubbed in the affected skin areas. In semi-solid and oily preparations 5 - 20 percent; In aqueous-ethanol preparations 5 - 10 percent; In nasal ointments 1 - 5 percent essential oil. Mode of Administration Essential oil and galenical preparations for internal and external application.