antimony potassium tartrate

a compound used as an expectorant and in the treatment of schistosomiasis japonicum, although it is extremely toxic and must be administered very slowly intravenously; common toxic manifestations are phlebitis, tachycardia, and hypotension; sudden deaths have been reported, chiefly from circulatory collapse. Syn: potassium antimonyltartrate, tartar emetic, tartrated antimony.