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A 18-year-old female asked:

I've taken 5mg of melatonin tonight. can i take nyquill to help me sleep? melatonin isn't working..

1 doctor answer2 doctors weighed in
Dr. Patrick Melder
ENT and Head and Neck Surgery 28 years experience
Yes: The antihistamine in NyQuil (doxylamine succinate) will provide the side effect of drowsiness. Like all antihistamines if it works tonight for sleep you develop quick tolerance to it as a sleep aide. Also, if you don't need the other ingredients, I would avoid taking NyQuil just as a sleep aide. For insomnia issues - cognitive behavioral therapy is the best treatment: see www.shuti.me

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Last updated Mar 12, 2018

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