Adult 200 mg on the 1st day. Maintenance: 100 mg/day.
More severe infections (particularly chronic UTI) 200 mg once daily or in 2 divided doses.
Acute gonococcal anterior urethritis in males Single dose of 300 mg or 100 mg bd for 2-4 days.
Acute gonococcal infections in adult females 100 mg bd.
Primary & secondary syphilis 200 mg daily for at least 10 days.
Streptococcal infections Continue therapy for at least 10 days.