ZzzQuil Ultra is a sleep aid that helps you fall asleep quickly and stay asleep longer. It contains 25 mg of Doxylamine Succinate, which blocks histamine receptors in the brain to induce sedation. Clinical trials have shown that it can improve sleep duration by an average of 27%. This non-habit forming tablet provides a better and more restful sleep throughout the night. ZzzQuil is designed for occasional use when you need help getting to sleep. (This content is generated by AI)