fezolamine fezolamine fezolamine (win-41,528-2) is a drug which was investigated by sterling drug as an antidepressant in the 1980s. the isomeric n,n-dimethyl-4,5-diphenyl-1h-pyrazole-1-propanamine was completely inactive in the primary antidepressant screens. fezolamineclinical dataroutes ofadministrationoralatc codenonelegal statuslegal status in general: uncontrolled identifiers iupac name 3-(3,4-diphenyl- 1h-pyrazol- 1-yl)- n,n-dimethylpropan- 1-amine cas number80410-36-2pubchem cid54567chemspider49284unii1133e05f6ccomptox dashboard (epa)dtxsid00230305 chemical and physical dataformulac20h23n3molar mass305.425 g·mol−13d model (jsmol)interactive image smiles n1c(c(cn1cccn(c)c)c2ccccc2)c3ccccc3 it acts as a serotonin, norepinephrine, and dopamine reuptake inhibitor, with 3- to 4-fold preference for the former neurotransmitter. it was found to be effective and well tolerated in clinical trials but was never marketed.