Mucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 40 Tablets

4.7 stars out of 418 reviews
(4.7)|
418 ratings

Key item features

  • COUGH & COLD MEDICINE FOR ADULTS: Mucinex DM 12 hr expectorant & cough suppressant packs a powerful punch with 30 mg dextromethorphan HBr & 600 mg guaifenesin extended release tablets
  • EXCESS MUCUS RELIEF: Powerful multi-symptom relief; Mucinex DM 12hr lasts up to 12 hours, provides relief for your chest congestion and makes coughs more productive
  • EXPECTORANT FOR ADULTS: Mucinex DM helps clear lungs of excess mucus and phlegm; Say goodbye to chest congestion and cough, say hello to excess mucus relief with our original bi-layer tablets
  • EXTENDED RELEASE GUAIFENESIN: Experience long-lasting symptom relief with Mucinex DM 12hr extended-release 600 mg guaifenesin and 30 mg dextromethorphan HBr tablets
  • TRUSTED BRAND: Mucinex is the #1 Cough & Cold Brand Doctor's Trust* and is also the #1 Pharmacist Recommended OTC Expectorant**; Get the brand that doctors trust and recommend
  • COLD AND FLU MEDICINE FOR ADULTS: For powerful cough, cold, and flu multi-symptom relief, check out our range of Mucinex Fast-Max cold and flu medicines; Beat cold and flu symptoms with confidence
  • USAGE: Use as directed; For ages 12+ years
  • FSA & HSA Eligible: Save Up to 30%; Cover out-of-pocket expenses with pre-tax dollars; Product eligibility may vary by plan, check with your benefits administrator to determine which expenses are eligible before you shop
  • QUALITY YOU CAN TRUST: Mucinex uses carbomer that is manufactured without the use of benzene
  • *IQVIA using ProVoice Survey, August 2023; **U.S. News & World Report/Pharmacy Times 2023-2024
Current price is $25.4763.7 ¢/count
Price when purchased online
  • Free 90-day returns

How do you want your item?

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.
How do you want your item?
Whitehall Supercenter
Pickup as soon as 7am tomorrow.
Aisle G11
Sold and shipped by Walmart.com
Free 90-day returns
FSA and HSA eligible
walmart plus

Get free delivery, shipping and more*

*Restrictions apply
Try Walmart+ now

About this item

Product details

Specifications

Indications

Directions

Warranty

Ingredients

Warnings

Customer ratings & reviews

4.7 out of 5 stars
stars418 ratings134 reviews
How item rating is calculated

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 134 reviews

Feb 16, 2026
Rebecca
5 out of 5 stars review

Verified Purchase

Could not do without

I live in an area full of pollinators so I use to breathe. I use all the time and know this does not have effects with other medications. Don't have to avoid certain juice either.

Helpful?6XFUNQIN7OU912548289
Dec 9, 2011
TenTwentyFive
Walmart Associate
5 out of 5 stars review

Works every time

Mucinex has been my go-to cough suppressant + expectorant for the flu season. It works really well and it gets me slightly drowsy so I sleep better without the cough. I also prefer medication that's in a tablet form rather than a messy syrup that I need to measure out.

Helpful?6XFUNQIN7OU912548289
Mar 26, 2012
saleetah
Walmart Associate
5 out of 5 stars review

Highly recommend for Allergies

Highly recommended for anyone who has allergies and constantly is dealing with post nasal drip. I was extremely happy that this product helped clear congestion quickly. I took two pills in the course of 2 days and had noticeably less mucus collecting in my chest. My coughs were more productive and over the next 2 days my cough just went away. Great value for the price and with the dose being every 12 hours the product will last you awhile.

Helpful?6XFUNQIN7OU912548289