Pharmacology Cardiovascular system 8e8d7404 All the following causes QT prolongation except A Cisapride B Quinidine C Terfenadine D Cetrizine High-Yield Explanation Drugs producing QT prolongation- class 1a, class 3 antiarrhythmic agents terfinadine, tricyclic antidepressants, neuroleptics, prokinetics Ref: KD tripathi 8th ed