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Mucinex Fast-Max DM Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA/HSA, 6 fl oz

Key item features

  • COUGH COLD AND FLU MEDICINE FOR ADULTS: Mucinex DM Max expectorant & cough suppressant packs a powerful 1..2.. punch with dextromethorphan and Guaifenesin 400mg extended release, providing you with long-lasting relief from mucus congestion and cough
  • EXCESS MUCUS RELIEF: Maxium strength multi-symptom relief; Mucinex DM Max is clinically proven to last up to 4hrs and provide relief for chest congestion and make coughs more productive
  • EXPECTORANTS AND DECONGESTANTS FOR ADULTS: Mucinex DM Max helps clear lungs of excess mucus and phlegm to help make every day a breath of fresh air; Say goodbye to chest congestion and cough, say hello to excess mucus relief!
  • EXTENDED RELEASE GUAIFENESIN: Experience 4hr relief with Mucinex DM Max extended-release 400mg guaifenesin and 20mg dextromethorphan HBr in an easier to swallow liquid format
  • TRUSTED BRAND: Mucinex is the #1 Cough & Cold Brand Doctor's Trust* and is also the #1 Pharmacist Recommended Brand†; Don't be fooled by cheap imitations get the brand that doctors trust and recommend!
  • COLD MEDICINE FOR ADULTS: When you need a powerful cough and cold medicine that's formulated for adults, Mucinex DM is the name to trust; Beat cold and flu symptoms with confidence
  • USAGE: Use as directed; For ages 12+ years
  • *IQVIA using ProVoice Survey, December 2022 †U.S. News & World Report/Pharmacy Times 2023-2024
Current price is $13.97$2.33/fl oz
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Customer ratings & reviews

4.6 out of 5 stars
stars1,749 ratings332 reviews
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Reviews summary

Pros

  • : Relieves and breaks up congestion.
  • : Relieves symptoms within a few hours.
  • : Relieves symptoms for restful night's sleep.

Neutral

  • : Offers competitive value, but can be expensive for some users.
  • : Can be refreshing and minty, but also bitter or unpleasant.
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Showing 1-3 of 332 reviews

Jan 9, 2026
R
Top Reviewer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I've had a nagging cough for a week, and when I take Mucinex DM it feels better within a few minutes. And, it says it's 4-hour dosing but it lasts for me for well over 4 hours.

Helpful?5SQ1LX1OY20917235795
Feb 5, 2026
Patricia
Top Reviewer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Why cough for longer than needed

This has been my households go-to during cold and flu season. Gets the job done, helps shorten the recovery time of those coughs that just seem to want to hang on forever. Works great!

Helpful?5SQ1LX1OY20917235795
Dec 17, 2025
Gina
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

This item was recommended by my Doctor to calm the symptoms incurred from RSV. I am not coughing through the night and my chest conjestion is getting better. I hughly recommend Mucinex fast Max cough and conjestion. I works!

Helpful?5SQ1LX1OY20917235795