Delsym Nighttime Cough Maximum Strength Liquid provides powerful, long-lasting relief from persistent coughs that disrupt sleep. This advanced formula combines the trusted cough suppressant dextromethorphan with the antihistamine diphenhydramine to not only quiet coughs but also promote restful sleep. The unique time-release technology delivers up to 12 hours of cough relief, allowing for uninterrupted rest during recovery from cold and flu symptoms. The pleasant-tasting liquid formula is easy to measure and swallow, making it suitable for adults and children 12 years and older. Delsym’s patented extended-release system gradually releases the active ingredient throughout the night, providing consistent symptom relief. This nighttime formula is specifically designed to address the dual challenge of persistent coughing and sleep disruption that often accompanies respiratory illnesses. The non-drowsy daytime worry is eliminated as the gentle sedating effect helps promote natural sleep while effectively suppressing cough reflex for comprehensive nighttime comfort.