This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Arrhythmic, Subject name: Pharmacology
Which of the following drug causes QT prolongation? 
Select and explain. 
A. Loratidine, B. Levocetrizine, C. Fexofenadine, D. Finasteride
C: Fexofenadine
Answer: C: Fexofenadine 
Explanation: ANSWER: (C) FexofenadineREF: KDT 6th edition page 510, Harrison 18th edition page 1884 Table 233-5Drugs causing QT prolongation: (Potential to precipitate Torsades de pointes) Antiarrthymic: Amidarone, Disopyamide, Dofetilde, Dronedarone, Ibutilite, Sotalol, Quinidine, procainamide, Propafenone Antibiotics: Quinine, Gatifloxacin, sparfloxacin, Halofantrin, Voriconazole, artemisin Prokinetic drugs: Cisapride Antidepressants: Tricyclic antidepressants Antihistaminics: Terfenadine, astemiazole, ebastine, Fexofenadine Anesthetics: Bupivacine SSRIs (especially xvith Citalopram) Antipsychotics: Thioridazone, risperidone