title: Treatment of drug-induced psychosis in Parkinson's disease with ziprasidone can induce severe dose-dependent off-periods and pathological laughing.
abstract: "Atypical anti-psychotics" are substances of choice in treating drug-induced psychosis (DP) in Parkinson's disease (PD). We report on four patients with DP who received treatment with ziprasidone after previously applied clozapine and quetiapine had failed. Three patients showed a significant improvement of DP, without deterioration of motor function. In one case, ziprasidone considerably increased decline in off-periods. Two patients developed pathological laughing as a possible side-effect of ziprasidone. Ziprasidone may serve as an additional "atypical anti-psychotic" for the treatment of DP in PD but can also induce deterioration of motor function.
authors.affiliation: Paracelsus Elena-Klinik Kassel, Klinikstrasse 16, 34128 Kassel, Germany. jschind@gwdg.de
authors.forename: Jan
authors.initials: J
authors.lastname: Schindehütte
authors.forename: Claudia
authors.initials: C
authors.lastname: Trenkwalder
mesh_terms: D000368:Aged; D000978:Antiparkinson Agents / Q000009:adverse effects* / Q000627:therapeutic use; D014150:Antipsychotic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D003024:Clozapine / Q000009:adverse effects / Q000627:therapeutic use; D003987:Dibenzothiazepines / Q000009:adverse effects / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004359:Drug Therapy, Combination; D006801:Humans; D007845:Laughter; D007980:Levodopa / Q000009:adverse effects / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination / Q000187:drug effects; D010300:Parkinson Disease / Q000188:drug therapy*; D010302:Parkinson Disease, Secondary / Q000139:chemically induced* / Q000175:diagnosis; D010879:Piperazines / Q000009:adverse effects* / Q000627:therapeutic use; D011605:Psychoses, Substance-Induced / Q000188:drug therapy*; D000069348:Quetiapine Fumarate; D013844:Thiazoles / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D000978:Antiparkinson Agents; D014150:Antipsychotic Agents; D003987:Dibenzothiazepines; D010879:Piperazines; D013844:Thiazoles; D000069348:Quetiapine Fumarate; D007980:Levodopa; C092292:ziprasidone; D003024:Clozapine