Tablet: Usual adult dose: 500 mg as single dose daily for 3 days.
Initial dose: 500 mg followed by 250 mg daily for 4 days.
For uncomplicated genital infections due to Chlamydia trachomatis: 1 g as a single dose.
For uncomplicated gonorrhea: 2 g as a single dose.
For prophylaxis of disseminated MAC infections: 1.2 g once weekly.
Or as prescribed by the physician.