Two dosages of clarithromycin for five days, amoxicillin/clavulanate for five days or penicillin V for ten days in acute group A streptococcal tonsillopharyngitis.

Background: Short course antimicrobial therapy is suggested for group A streptococcal tonsillopharyngitis.

Methods: The bacteriologic and clinical efficacies of clarithromycin [30 or 15 mg/kg/day twice daily (b.i.