ifoxetine ifoxetine ifoxetine (cgp-15,210-g) is a selective serotonin reuptake inhibitor (ssri) which was investigated as an antidepressant in the 1980s but was never marketed. ifoxetine selectively blocks the reuptake of serotonin in the brain supposedly without affecting it in the periphery. supporting this claim, ifoxetine was found to be efficacious in clinical trials and was very well tolerated, producing almost no physical side effects or other complaints of significant concern. not to be confused with fluoxetine. ifoxetineclinical dataroutes ofadministrationoralatc codenonelegal statuslegal status in general: uncontrolled identifiers iupac name (3r,4s)-4-(2,3-dimethylphenoxy)piperidin-3-ol cas number66208-11-5pubchem cid71971chemspider64977uniilhh887104bchemblchembl2218865comptox dashboard (epa)dtxsid10216397 chemical and physical dataformulac13h19no2molar mass221.300 g·mol−13d model (jsmol)interactive image smiles o(c1cccc(c1c)c)2ccnc2o