Horehound herb (Marrubii herba)

Published February 1, 1990.
List of German Commission E Monographs (Phytotherapy)


Name of Drug

Marrubii herba, horehound herb.

Composition of Drug

Horehound herb consists of the fresh or dried, above-ground parts of Marrubium vulgare L. [Fam. Lamiaceae], as well as their preparations in effective dosage.

The herb contains bitter principles and tannins.


Loss of appetite and dyspepsia, such as bloating and flatulence.


None known.

Side Effects

None known.

Interactions with Other Drugs

None known.


Unless otherwise prescribed:

Daily dosage:

4.5 g of drug; 2 - 6 tbs. of pressed juice; equivalent preparations. Mode of Administration Comminuted herb, freshly expressed plant juice and other galenical preparations for internal use.


Marrubinic acid works as a choleretic.