Condurango bark (Condurango cortex)

Published October 15, 1987; Revised March 13, 1990.
List of German Commission E Monographs (Phytotherapy)


Name of Drug

Condurango cortex, condurango bark.

Composition of Drug

Condurango bark consists of the dried bark of the branches and trunk of Marsdenia condurango Reichenbach fil. [Fam. Asclepiadaceae], as well as its preparations in effective dosage.

The bark contains bitter principles, such as condurangin.


Loss of appetite.


None known.

Side Effects

None known.

Interactions with Other Drugs

None known.


Unless otherwise prescribed:

Daily dosage:

Water extract (according to Erg. B. 6):
0.2 - 0.5 g; Extract (according to Erg. B. 6):
0.2 - 0.5 g; Tincture (according to Erg. B. 6):
2 - 5 g; Liquid extract (according to Helv. VI):
2 - 4 g; Bark:
2 - 4 g. Mode of Administration Comminuted bark for teas and other bitter-tasting preparations for oral use.


Stimulation of the secretion of saliva and gastric juices.