Expectorant
Products Expectorants are commercially available in the form of cough syrups, drops, tablets, powders, granules, pastilles, and lozenges, among others. Structure and properties Natural (herbal), semisynthetic, and synthetic agents are used. Effects Expectorants liquefy and loosen tough mucus in the respiratory tract and promote expectoration. Mucolytic: liquefy bronchial mucus. Secretolytic: promotes production of a thin … Expectorant