Diphenhydramine HCI. Alcohol 10%. From the makers of Vicks NyQuil. Non-habit forming. Fall asleep fast. Not for pain. Not for colds. Just for sleep. www.vicks.com. www.pg.com. Questions? 1-877-881-5813. Other information: Store at 68 - 77 degrees F (20 - 25 degrees C). Avoid excessive heat above 104 degrees F (40 degrees C). Protect from light.