Synonyms: Paroxetine Mesylate [USAN];(-)-trans-4R-(4'-Fluorophenyl)-3S-((3',4'-methylenedioxyphenoxy)methyl)piperidine, mesylate;POT.mes;Paroxetine methanesulfonate;Pexeva;UNII-M711N184JE;Piperidine, 3-((1,3-benzodioxol-5-yloxy)methyl)-4-(4-fluorophenyl)-, (3S,4R)-, methanesulfonate;(3S,4R)-3-[(1,3-benzodioxol-5-yloxy)methyl]-4-phenylpiperidine methanesulfonate (1:1)