UTI 200-400 mg once daily, increased if necessary in upper UTI to 400 mg bd for 7-10 days. Lower resp tract infections 400 mg once daily, increased if necessary to 400 mg bd for 7-14 days. Skin & soft tissue infections 200-400 mg bd for 7 days. Uncomplicated gonorrhoea 400 mg as single dose. Non-gonococcal urethritis & cervicitis 400 mg daily in single or divided doses for 7-10 days.