ziprasidone [ 5-(2-(4-(3-benzisothiazolyl)piperazinyl)ethyl)-6-chloro-1,3-dihydro-2H-indol-2-one,CP 88059,CP 88059-01,CP-88,059,CP-88,059-01,CP-88,059-1,Geodon,ziprasidone hydrochloride,ziprasidone hydrochloride, monohydrate,ziprazidone ] a benzisothiazoylpiperazine derivative; has combined dopamine and serotonin receptor antagonist activity; structurally related to tiospirone