Yes: Nyquil can be abused. Nyquil Cold & Flu is a combination of medicines: acetaminophen, dextromethorphan and doxylamine. According to Drugs.com it is “used to treat headache, fever, body aches, cough, runny nose, sneezing, sore throat caused by allergies, the common cold, or the flu…it will not treat a cough that is caused by smoking, asthma, or emphysema.” When used as directed, Nyquil can be highly effective and safe, with nominal side effects. However, when abused and/ or taken in large amounts it can lead to distorted awareness, altered perceptions of time and hallucinations. The abuse of cough syrup, including Nyquil, has been a growing problem in America for decades.

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