anorexigen

noun

an·​orex·​i·​gen ˌa-nə-ˈrek-sə-jən, -nō- 

: a drug that suppresses the appetite : anorectic

The study concluded that fenfluramine-based anorexigens, such as fenfluramine and phentermine, increased the risk of primary pulmonary hypertension by more than 30 times.

—S. U. Mahesh, The Albuquerque Journal