Pharmacology Polymorphic ventricular tachycardia can occur when terfenadine(antihistaminic): A Is coadministrator with azithromycin B Is coadministrator with fluconazole C Is given in higher doses D Reduces QT interval 💡 Explanation Polymorphic ventricular tachycardia can occur when terfenadine(antihistaminic): ✓ Correct Answer: C. Is given in higher doses