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

4.6 stars out of 1499 reviews
(4.6)|
1,499 ratings

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
stars1,499 ratings325 reviews
How item rating is calculated

Reviews summary

Pros
  • : Provides relief within a few hours.
  • : Helps alleviate symptoms for a restful night.
  • : Relieves coughing and loosens mucus in the chest area.
  • : Relieves and breaks up congestion in a timely manner.
Neutral
  • : Offers competitive pricing, but can be expensive for some users.
  • : Can be refreshing, but also bitter.
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Showing 1-3 of 325 reviews

Jan 9, 2026
R
Item details
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
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
Feb 5, 2026
Patricia
Item details
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

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