Other Information: Store at 68-77 degrees F (20-25 degrees C). Avoid excessive heat above 104 degrees F (40 degrees C) and high humidity. Product from light. Misc: Diphenhydramine HCl 25 mg softgels. Nighttime sleep-aid. Non-habit forming. Quality guaranteed. Compare to Vicks ZzzQuil active ingredient (This product is not manufactured or distributed by Procter & Gamble, distributor of Vicks ZzzQuil). Not for treating cold or flu. See warnings. This TopCare product is laboratory tested to guarantee its highest quality. Your total satisfaction is guaranteed. Gluten free.