Sulforidazine (Imagotan, Psychoson, Inofal) a typical antipsychotic and a metabolite of thioridazine; it and mesoridazine are more potent than the parent compound, whose pharmacological effects are believed by some to be largely due to its metabolism into sulforidazine and mesoridazine.
^Niedzwiecki DM, Mailman RB, Cubeddu LX (March 1984). "Greater potency of mesoridazine and sulforidazine compared with the parent compound, thioridazine, on striatal dopamine autoreceptors". Journal of Pharmacology and Experimental Therapeutics. 228 (3): 636–9. PMID6707914.