This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
All of the following Atypical Antipsychotic drugs cause prolonged QT interval except 
Select and explain. 
A. Risperidone, B. Ziprasidone, C. Quitapine, D. Olanzepine
D: Olanzepine
Answer: D: Olanzepine 
Explanation: (D) Olanzepine # Anti-psychoticDrugs that prolong the QT interval and in some have been associated with torsades de pointes> Clozapine Anti-psychotic / schizophrenia> Felbamate Anti-convulsant / seizure> Fosphenytoin Anti-convulsant / seizure> Lithium Anti-mania / bipolar disorder> Quetiapine Anti-psychotic / schizophrenia> Risperidone Anti-psychotic / schizophrenia> Ziprasidone Anti-psychotic / schizophrenia