Melarsoprol
（重定向自Arsobal）
Melarsoprol (INN) is a prodrug used in the treatment of East African (rhodesiense) human African trypanosomiasis. It is produced by Sanofi-Aventis and is on the World Health Organization's List of Essential Medicines.
Freidheim demonstrated in 1949 the effects of melarsoprol against late-state trypanosomiasis. Melarsoprol is the dimercaptopropanol derivative of melarsen oxide (Mel Ox), whose structure is shown below: