This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adverse Drug Effect, Subject name: Pharmacology
[{'content': 'Drugs that do not increase QT interval: (PGI Nov 2010) \nSelect and explain. \nA. Amiodarone, B. Quinidine, C. Digitalis, D. Amitryptyline', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C (Digitalis) "Digitalis cause shortening of QT interval"- KDT 6th/495Drugs that Prolong Q-T intervalAntiarrhythmicsQuinidineQ, procainamideQ, disopyramide. propafenone, AmiodaroneQ, SotalolAntimicrobialQuinine, mefloquine, artemisinin, halofan- trine, sparfloxacin, gatifloxacinAntihistaminicTerfenadineQ, astemizole, ebastineAntidepressantsAmitryptyline & other tricyclicsAntipsych oticsThioidazine, risperidoneProkineticsCisaprideQ', 'role': 'assistant'}]