Ckondodendron tomentosum. Was official in the eighth U. S. P. Not recognized in any other country. Belongs to the Menispermaceae, an order of climbing shrubs of no general medicinal importance. There are several species, badly mixed in commerce, making supplies notoriously unreliable. Possesses no defined physiological action. Good specimens resemble buchu in action. The drug is similarly used. The fl. is given in doses of 30 minims. Very properly deleted from the U. S. P. IX.

Menispermum Canadense, Canadian Moonseed, is the plant largely sold for pareira. Contains a trace of berberina and a bitter; has been employed as a substitute for sarsaparilla. A feeble tonic of little value.