ZzzQuil is a non-habit-forming sleep aid that helps you fall asleep fast, in as little as 20 minutes. It contains Diphenhydramine HCI, which blocks the action of histamine to induce drowsiness. It does not contain high fructose corn syrup, alcohol, or artificial dyes. ZzzQuil can be used for occasional sleeplessness when you need extra help getting to sleep. (This content is generated by AI)