Mucinex Dm

(Dextromethorphan / Guaifenesin)

3.9/ 5 average rating with 15 reviewsforMucinex DM
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Breaks up mucus and relieves cough.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Mucinex Dm (Dextromethorphan / Guaifenesin) is okay for loosening congestion in your chest and throat, but it could prevent you from coughing the mucus up. It comes as an extended-release tablet and a short-acting liquid.

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    $12.74
Quick facts about Mucinex DM
  • Drug class: Respiratory
  • Rx status: Over-the-counter
  • Generic status: Lower-cost generic available (dextromethorphan / guaifenesin)

Upsides

  • Mucinex Dm (Dextromethorphan / Guaifenesin) is a combination medicine that relieves multiple cold symptoms. It's good to use if you have chest congestion and a cough.
  • Helps loosen the mucus and phlegm that builds up in productive and wet coughs.
  • The extended release version of Mucinex DM lasts up to 12 hours.
People’s experience with Mucinex DM

15reviews so far. What do you think?

Downsides

  • Mucinex Dm (Dextromethorphan / Guaifenesin) isn’t useful if you have a dry cough without mucus or phlegm.
  • The two medications in this product could potentially work against each other. Guaifenesin makes mucus easier to cough up, while dextromethorphan (the "DM" in Mucinex Dm (Dextromethorphan / Guaifenesin)) stops you from coughing.
  • Can cause sleepiness, dizziness, and an upset stomach.
How it works

Mucinex Dm (Dextromethorphan / Guaifenesin) is a combination medicine. Guaifenesin is an expectorant that breaks up and thins out mucus. Dextromethorphan is a cough suppressant.

Quick facts about Mucinex DM
  • Drug class: Respiratory
  • Rx status: Over-the-counter
  • Generic status: Lower-cost generic available (dextromethorphan / guaifenesin)

Dosage forms

  • Pill
  • Extended release
  • Liquid
People’s experience with Mucinex DM

15reviews so far. What do you think?

Prices and coupons

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Side effect rates for Mucinex Dm (Dextromethorphan / Guaifenesin)

0 reports
These are side effects of Mucinex Dm (Dextromethorphan / Guaifenesin) reported to the FDA by people taking it, and by doctors and pharmacists.
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Risks and Warnings for Mucinex Dm (Dextromethorphan / Guaifenesin)

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  • People taking Mucinex Dm (Dextromethorphan / Guaifenesin) have reported nausea and vomiting. This is very rare and usually not serious. If you develop a fever with the nausea and vomiting, then talk to your doctor right away.

Common concerns from people taking Mucinex Dm (Dextromethorphan / Guaifenesin)

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Pregnancy

The FDA hasn’t classified this medicine’s effects on unborn babies. Talk with your doctor about this medicine if you’re pregnant or planning on it.

Tip: Always talk with your doctor before you take any medication while pregnant.
FDA pregnancy category for Mucinex DM
NUnknown
Interactions
  • Worth it
    Low hassle
    Reviewed Mucinex DMon 11/23/2015Last winter I had this problem where when I would lay down to sleep I would start coughing. I took this and 20 minutes later I laid down - no coughing. After a week or so the problem went away. Came back again later and this helped again.
    22
    Woman
    A couple weeks
Food
  • Not sure
    Big hassle
    Reviewed Mucinex DMon 8/2/2017Definitely take AFTER eating a large meal and drinking fluids.
    21
    Woman
    Just as needed
    Expectoration (clearing) of mucus