Calamus (sweet flag) is an aromatic, bitter stomachic, which stimulates appetite and digestion and is a stomach tonic. It has spasmolytic, carminative, and sedative effects, in addition to being externally hyperemic. It also a stimulant, emetic, nauseant, stomachic, aromatic, expectorant, carminative, antispasmodic, and nervine sedative.
