Adult Acute infection 200 mg on 1st day of treatment. Maintenance: 100 mg daily.
Severe infections 200 mg daily.
Childn <50 kg 4 mg/kg on 1st day of treatment. Maintenance: 2 mg/kg daily.
Severe infections Max: 4 mg/kg daily.
Childn >50 kg Adult dose.
Acne vulgaris 50 mg daily for 6-12 wk.
Acute gonococcal anterior urethritis in male Single dose of 300 mg or 100 mg bd for 2-4 days.
Acute gonococcal infection in female 100 mg bd.
Primary & secondary syphilis 300 mg daily in divided doses for ≥10 days.
Uncomplicated urethral, endocervical or rectal infections due to chlamydia Adult 100 mg bd for 7 days.