Therapeutic Group: Non-opioid antitussive Presentation Dilidex Syrup: Each 5 mL syrup contains Dextromethorphan Hydrobromide BP 6.5 mg, Diphenhydramine Hydrochloride BP 14 mg, and Levomenthol USP 2 mg. Description Dextromethorphan is a non-opioid antitussive drug. It exerts its antitussive activity by acting on the cough center in the medulla oblongata, raising the threshold for the cough […]