Mucinex Instasoothe Sore Throat + Cough Relief medicated throat drops/cough drops have a powerful 3 in 1 formula that relieves, soothes, and numbs sore throats. These alpine herbs fresh mint flavor sore throat lozenges provide rapid sore throat relief and up to 4 hours cough relief. These non menthol cough drops contain 2 powerful active ingredients: Dextromethorphan HBr, a cough suppressant, helps provide cough relief, and Hexylresorcinol, an oral pain reliever, provides powerful sore throat relief. Each cough drop has less than 10 calories and 2.5g of sugar (no artificial sweetener).