The standard oral dosage is 400 mg once a day. Dosage adjustment is unnecessary in patients with renal dysfunction or mild to moderate hepatic dysfunction. Moxifloxacin is a safe and effective ...

An open-label, multiple-dose, three-way-crossover study examined the effects of moxifloxacin 200 mg/ day on the pharmacokinetics of theophylline 400 mg/day in 12 healthy male volunteers.