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We report an 82-year-old man who developed ventricular tachycardia and Torsades de Pointes (TdP) after oral administration of garenoxacin, a novel quinolone antibiotic agent that differs from the third-generation quinolones, for pneumonia.
 ( adverse event: after ,  an 82-year-old man: Subject, 82-year-old: Subject.Age, man: Subject.Gender, ventricular tachycardia and Torsades de Pointes (TdP): Effect, oral administration of garenoxacin: Treatment, pneumonia: Treatment.Disorder, oral: Treatment.Route, garenoxacin: Treatment.Drug) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( adverse event: after ,  an 82-year-old man: Subject, 82-year-old: Subject.Age, man: Subject.Gender, ventricular tachycardia and Torsades de Pointes (TdP): Effect, oral administration of garenoxacin: Treatment, pneumonia: Treatment.Disorder, oral: Treatment.Route, garenoxacin: Treatment.Drug) 