1 doctor weighed in:

Is it possible to take too much nyquil?

1 doctor weighed in
Dr. Lynne Weixel
Clinical Psychology

In brief: Yes! don't exceed

The warnings are meant to be followed.
Taking more than 4 doses per day can cause liver damage and also avoid use w/ other drugs containing Acetaminophen or if you have certain diseases. Read label of see link: http://www.Walgreens.Com/store/c/vicks-nyquil-cold-%26-flu-relief-liquicaps/id=prod6091048-product take care of yourself - you're worth it.

In brief: Yes! don't exceed

The warnings are meant to be followed.
Taking more than 4 doses per day can cause liver damage and also avoid use w/ other drugs containing Acetaminophen or if you have certain diseases. Read label of see link: http://www.Walgreens.Com/store/c/vicks-nyquil-cold-%26-flu-relief-liquicaps/id=prod6091048-product take care of yourself - you're worth it.
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