Usual regimen: 250-500 mg tid.
Resp tract infection 3 g bid.
Acute UTI 3 g repeated once 12 hr later.
Gonorrhoea 3 g single dose.
Dental abscess 3 g repeated once 8 hr later.
Prophylaxis of endocarditis Single 3 g dose 1 hr before dental procedure. Repeated 6 hr later if necessary.
Childn ½ of adult dose.