A 51-year-old female asked:
Disclaimer

she took mucinex (guaifenesin) dm about 4 hours ago, and just took nyquil cold/flu tabs, and went to bed. mucinex (guaifenesin) has 60 mg of dextrometh. & nyquil has 15mg. safe?

2 doctor answers
Dr. Alvin Lin
Dr. Alvin Lin answered
29 years experience Geriatrics
Yes assuming 1 dose: There are several online medication information resources & drug-drug interaction checkers available for consumers. Check out http://www.drugs.com/interactions-check.php?drug_list=846-8245,55-1943 which shows no issue btwn Mucinex (guaifenesin) DM & Nyquil. Max dose is 120mg/d (http://www.drugs.com/dosage/dextromethorphan.html), so assuming just one dose of each, then your 75mg is under daily maximum.
Answered on Feb 29, 2020
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Dr. Yash Khanna
56 years experience Family Medicine
It is safe: It is safe as long as you did not take any before or after that Will do no harm slightly 15mgm over the recommended dose but not a big problem
Answered on Feb 27, 2020
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