Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Early twentieth-century scientists had long been attempting to treat trypanosomiasis, or African Sleeping Sickness, with arsenic-based compounds. Unfortunately, these compounds were largely ineffective and highly toxic. In light of this, Heidelberger and Walter Jacobs began work to formulate an alternate treatment for the disease. This article describes the pair's successful creation of a simple, non-toxic, and easily made arsenic compound to treat sleeping sickness, which Simon Flexner, director of the Rockefeller Institute, named "tryparasamide."
Periodical. Jacobs, Walter A., and Michael Heidelberger. "Chemotherapy of Trypanosome and Spirochete Infections: Chemical Series. I. N-Phenylglycineamide-p-Arsonic Acid." Journal of Experimental Medicine 30, 5 (October 1919): 411-415. Article. 5 Images.. Journal of Experimental Medicine