The purpose of this trial is to investigate efficacy and tolerability of lozenges containing 20mg am broxol hydrochloride relative to placebo in relieving pain of sore throat in adolescent patients suf fering from acute viral pharyngitis. The pain intensity will be assessed by the patient on a 6-point rating scale before taking the first lozenge and 30, 60, 120 and 180 minutes thereafter. The patient enters the rating in the patient's diary.