Skip to Content
Medical Term:


Pronunciation: ars-fen′ă-min


A yellow hygroscopic powder formerly used in the treatment of syphilis, yaws, and some other diseases of protozoan origin. The synthesis of arsphenamine in 1907 and the demonstration of its usefulness as a therapeutic agent by Paul Ehrlich and coworkers (1909) marked the beginning of chemotherapy.

Synonym(s): phenarsenamine

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.