Lidocaine 8 mg sore throat lozenges in the treatment of acute pharyngitis. A new therapeutic option investigated in comparison to placebo treatment.

An acute pharyngitis is characterised by mild to severe sore throat mostly accompanied by inflammation, throat pain, pain on swallowing, and burning. This randomised, double-blind, placebo-controlled phase III study was conducted for comparison of the efficacy and safety of a newly developed lidocaine (2-(diethylamino)-N-(2,6-dimethylphenyl) acetamide, CAS 137-58-6) 8 mg lozenge formulation (Trachisan Halsschmerztabletten) for the treatment of acute sore throat not necessarily to be treated with antibiotics. 240 patients of both genders were enrolled.