Delsym

Delsym is a prominent brand of over-the-counter cough suppressants, recognized for its patented 12-hour extended-release formula. The brand's core technology involves dextromethorphan polistirex, a sulfonated styrene-divinylbenzene copolymer complex that allows for sustained drug release. Delsym was originally introduced by Pennwalt and was later a flagship product of Adams Respiratory Therapeutics before being acquired by Reckitt in 2008. Today, the brand encompasses a wide range of cough and cold products for both adult and pediatric use, maintaining a significant market share in the respiratory health sector. Its product portfolio includes liquid suspensions, lozenges, and multi-symptom formulations targeting cough, sore throat, and chest congestion. Delsym is widely distributed through major retail pharmacies and grocery chains across North America.