Misuse of Cough Syrup

Cough syrup as an intoxicant Many antirritant cough syrups contain active ingredients that are psychoactive in high doses and can be abused as intoxicants. Substances include, for example: Opioids such as codeine, dihydrocodeine and ethylmorphine. NMDA antagonists: dextromethorphan Antihistamines such as diphenhydramine and oxomemazine. Phenothiazines: promethazine (out of commerce). Such drugs are unlike other drugs … Misuse of Cough Syrup