Peppermint leaf (Menthae piperitae folium)

Published November 30, 1985; Revised March 13, 1990, and September 1, 1990.
List of German Commission E Monographs (Phytotherapy)


Name of Drug

Menthae piperitae folium, peppermint leaf.

Composition of Drug

Peppermint leaves consist of the fresh or dried leaf of Mentha x piperita L. [Fam. Lamiaceae], as well as its preparations in effective dosage.

The herb contains at least 1.2 percent (v/w) essential oil. Other ingredients are tannins characteristic of Lamiaceae.


Spastic complaints of the gastrointestinal tract as well as gall bladder and bile ducts.


In case of gallstones, use only after consultation with a physician.

Side Effects

None known.

Interactions with Other Drugs

None known.



3 - 6 g of leaf; 5 - 15 g of tincture (according to Erg. B. 6); equivalent preparations. Mode of Administration Cut herb for infusions, extracts of peppermint leaves for internal use.


Direct antispasmodic action on the smooth muscle of the digestive tract

Note: There is a separate monograph for peppermint oil.