P. E.—The bark of the root.
N. H.—United States.
Properties: Tonic, antispasmodic, slightly astringent.
Use: It is a tonic and antiperiodic and of special value in chronic malaria with weak pulse, depressed temperature, relaxed and feeble tissues and general exhaustion, in which cases it should be combined with other indicated remedies. It tones up the system, counteracts the malarial poison, improves digestion and appetite.