Rates of Torsades de Pointes Associated with Ciprofloxacin, Ofloxacin, Levofloxacin, Gatifloxacin, and Moxifloxacin

Abstract

Levofloxacin should be administered with caution in patients with risk factors for QT prolongation. Gatifloxacin should be avoided in the same patient population, and the recommended dosage of 400 mg/day should not be exceeded.