Fall asleep fast! Safe. Proven effective. Diphenhydramine Hydrochloride. Liquid filled soft gels. Dosage: 1 softgel. Liquid filled softgels help you fall asleep fast for safe, refreshing sleep. FDA Approved Use: Helps to reduce difficulty falling asleep.This product contains Diphenhydramine HCl, Unisom Tablets contain Doxylamine Succinate.