phendimetrazine

noun

phen·​di·​met·​ra·​zine ˌfen-dī-ˈme-trə-ˌzēn 

: an appetite suppressant that is a sympathetic amine with pharmacological activity similar to the amphetamines and is administered orally usually in the form of its bitartrate C₁₂H₁₇NO·C₄H₆O₆ to assist weight reduction especially in the treatment of obesity