Jason Wallach

Jason Wallach (born 1987) is an American pharmacologist who studies psychedelic drugs and other hallucinogens. He is an assistant professor at Saint Joseph's University's Philadelphia College of Pharmacy. Hamilton Morris, a psychedelic journalist and the host of Hamilton's Pharmacopeia, works as a chemist in Wallach's lab.

In 2023, Wallach, Morris, and other colleagues published a key paper characterizing the serotonin 5-HT2A receptor intracellular signaling cascades mediating the head-twitch response, a behavioral proxy of psychedelic effects, in rodents. Wallach and Morris have intensively studied the auditory psychedelic diisopropyltryptamine (DiPT) for more than a decade.