PNU-22394 is a drug which acts as an agonist at serotonin 5-HT2receptors, with strongest binding affinity for 5-HT2A and 5-HT2C and slightly weaker at 5-HT2B, although it is only a full agonist at 5-HT2C, but partial agonist at 5-HT2A and 5-HT2B. It has anorectic effects in both animal studies and human trials, although it has never been developed for medical use.
McCall RB, Franklin SR, Hyslop DK, Knauer CS, Chio CL, Haber CL, Fitzgerald LW (2001). "PNU-22394, a 5-HT2C receptor agonist, reduced feeding in rodents and produces weight loss in humans". Soc Neurosci Abstr27. Presentation 309.2.
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