Is ZzzQuil safe and effective?
ZzzQuil™ contains diphenhydramine HCl, which has been used for many years. Clinical studies were conducted on diphenhydramine HCl and submitted to the FDA that show its safety and efficacy to relieve occasional sleeplessness, when used as directed. These studies are on file with the U.S. FDA.
Use as directed for occasional sleeplessness. Read each label. Keep all medicines out of the reach of children.
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