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Mucinex DM 12-Hour Expectorant and Cough Suppressant Tablets, 40 Count

4.6 out of 5 stars 244 customer reviews
| 7 answered questions
About the Product
  • Quiets wet and dry coughs
  • Thins and loosens mucus that causes chest congestion
  • Starts to work right away and lasts for 12 hours
  • Extended-release bi-layer tablet

Frequently Bought Together

  • Mucinex DM 12-Hour Expectorant and Cough Suppressant Tablets, 40 Count
  • +
  • Mucinex 12-Hour Chest Congestion Expectorant Tablets, 40 Count
  • +
  • Mucinex 12-Hour Chest Congestion Expectorant Tablets, 600mg 100 Count
Total price: $66.74
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Product Description

Size: 40

Product Description

Mucinex DM breaks up mucus and quiets wet and dry coughs. Mucinex DM is specially formulated in a bi-layer tablet. The immediate release layer goes to work fast while the extended release layer continues to work for 12 hours. And for your worst chest congestion and cough there's Maximum Strength Mucinex DM.

From the Manufacturer

Fight both wet and dry coughs for 12 hours with Mucinex DM extended-release bi-layer tablets. Not all coughs are the same. Sometimes you can have a wet cough caused by mucus. Other times, you have an irritating dry cough. Whichever type of cough you have, wet or dry, Mucinex DM will quiet it so you can focus on your life, not your symptoms.

Maximum Strength Mucinex DM - (1200mg Guaifenesin, 60 mg Dextromethorphan HBr) 14 ct. Product Shot
Quiets Wet and Dry Coughs

Mucinex DM extended-release tablets help control both wet and dry coughs for 12 hours. In addition, the extended-release tablets start to work quickly to break up mucus and relieve chest congestion.

Works for 12 Hours

Only Mucinex DM has a bi-layer tablet with maximum-strength medicines to fight wet coughs caused by mucus as well as irritating dry coughs. Plus, Mucinex DM works for 12 hours. The extended-release bi-layer tablet is designed with two layers. The first layer is absorbed quickly by your body for fast relief. The other layer dissolves slowly to continue relieving your wet or dry cough for 12 hours.

Mucinex: #1 with Doctors, Pharmacists, and Consumers

You're too busy with family, home, and work to let sickness slow you down. You need a brand you can trust to get the job done. That's why there's Mucinex. Mucinex is the #1 doctor recommended1, #1 pharmacist recommended2 3 and #1 most popular4 OTC expectorant brand. Mucinex products all have the dependable, mucus-busting power to show Mr. Mucus the way out of your system so you can keep up with life.

What's in the Box

One box of Mucinex DM extended-release bi-layer tablets (40 tablets per box).

Mucinex Logo

Mucinex DM

Relieves these Symptoms:
  • Quiets wet coughs caused by mucus
  • Controls irritating dry coughs
  • Thins and breaks up mucus to make coughs more productive

Use as directed.

Mucinex Has Products for All of Your Worst Symptoms

12 Hour Relief (Tablets)Chest CongestionDry CoughNasal Congestion
Maximum Strength MucinexMaximum Strength Mucinexx
MucinexMucinexx
Maximum Strength Mucinex DMMaximum Strength Mucinex DMxx
Mucinex DMMucinex DMxx
Maximum Strength Mucinex DMaximum Strength Mucinex Dxx
Mucinex DMucinex Dxx

1 Mucinex is the #1 doctor-recommended OTC expectorant among internists, general practitioners, and family practitioners. IMS Health, NDTI (National Disease Therapeutic Index), MAT 52 Weeks Ending March 2012.
2 OTC Expectorants: 2012 Survey of Pharmacist Recommendations: Pharmacy Times, June 2012.
3 Among Adult Expectorants and Adult Multisymptom Cold or Flu products. Pharmacy Today Annual Over-the-Counter Survey, February 2012.
4 Based on Symphony IRI unit sales data for the 52-week period ending November 25, 2012.


Product Details

Size: 40
  • Product Dimensions: 0.9 x 3.6 x 5.1 inches
  • Shipping Weight: 0.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000ALB4H2
  • UPC: 809099091131 363824056401 885376772801 885376890482
  • Item model number: RAC05640
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (244 customer reviews)
  • Amazon Best Sellers Rank: #7,121 in Health & Personal Care (See Top 100 in Health & Personal Care)

Important Information

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By kone TOP 1000 REVIEWER on October 29, 2005
Size: 40
There are so many cough formulas on the market that it is easy to get confused on what to buy. Here is a guide:

Cough medicines are categorized as EXPECTORANTS or SUPPRESSANTS, each may be sold separately or in combination medications, like this one. They're also found in cold formulas that include pain relievers (analgesics such as acetaminophen (Tylenol)), decongestants (pseudoephedrine), and antihistamines (diphenhydramine).

This product has a cough suppressant (dextromethorphan), combined with an expectorant (Guaifenesin). The purpose of an expectorant is to loosen phlem so that it can be coughed up and out. Take an expectorant with a full glass of water, as water is an excellent expectorant. Also, drink plenty of fluids if you are congested. Hot liquids, such as chicken soup, tea and honey--work especially well. Breathing humidified air also moistens and soothes irritated airways, and loosens mucous.

A cough SUPPRESSANT works by calming the cough reflex in the brain. While it's not wise to stop a cough that produces colored phlegm (colored phlegm has bacteria in it), suppressants can relieve a dry, hacking unproductive cough. Suppressants are also helpful when you're exhausted from coughing and need to sleep. DEXTRMETHORPHAN (DM) is the most common active ingredient in nonprescription suppressants. Dextromethorphan has come under attack as not being effective in suppressing coughs. There is research on both sides of the issue, some that support it and others that recommend avoiding dextromethorphan. I personally have not found it effective in suppressing my coughs. Perhaps the very best cough suppressant is one which contains codeine. Codeine can be helpful as a nighttime cough remedy because it has a slight sedative effect on the central nervous system.
Read more ›
9 Comments 238 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 40
Woke up a couple weeks back with what I thought was just the beginning of a bad cold; you know the symptoms - stuffy nose/sinuses full of 'gunk' and a persistant cough... didnt actually feel 'sick', but knew something was 'brewing'. I've seen the commercials for Mucinex that have been running lately, so, before I went to work that morning I stopped & picked a box up. I took 2 every 12 hours for about a week, and, I have to admit,this stuff really does work; My cough eased up A LOT, especially at night when it seemed to be at its worst, and, all of the 'gunk' in my sinuses really 'thinned out'. Needless to say, though, I did end up going to the doctor since the symptoms were still there. (hey, I'm a typical guy, and its true- we never like to admit we're sick - even though we are.) After listening to my chest & checking me out, he told me that I had Bronchitis, BUT, that taking the Mucinex daily had kept it from being/getting MUCH worse - he also told me to KEEP taking it until I was better - which I have. ( * A Note - I had Bronchitis about 4 years ago & it was GOD AWFUL - that's why I'm convinced that the Mucinex does work; I never once felt really 'bad/awful' this time & like I said, and my doctor confirmed, it was probably from taking this stuff on a regular/continual basis - NEEDLESS TO SAY, THOUGH!, If your symptoms DONT go away, GO AND SEE A DOCTOR!
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Size: 40
My wife suggested Mucinex after I developed a post-flu cough that kept me up at night. This stuff allowed me to sleep. Then I ran out of it and went to the store to get some more, but it is expensive, so I bought some cough syrup instead with the same active ingredients--dextromethorphan and guaifenesin. Well, I just compared the potency of the Mucinex with the cough syrup. 12-hour Mucinex has 60mg dextromethorphan and 1200 mg guaifenesin per tablet; the 4-hour cough syrup only has 10mg dextromethorphan and 100 mg guaifenesin per 2 tsp dose. In other words, the Mucinex has six times the dextromethorphan and 12 times the guaifenesin as the cough syrup. Even adjusting for the time difference (12 hours for Mucinex and 4 hours for the cough syrup), the Mucinex is much more powerful. No wonder it works. I don't know how they get away with packing such a punch in the Mucinex.
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Size: 40
This medicine REALLY works!! The active ingredient is very safe (this was suggested to me by my Dr. when I was pregnant) and it is the ONLY medicine that I use that is effective against deep chest congestion!! Accept no imitations--if you are trying to save a buck and buy a generic of this, I've tried them and they are ineffective. Mucinex is time released while the others aren't.
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Size: 40
I'm not one for taking meds/pills at the slightest sign of a cold. In fact, I usually try to tough it out. However, last year, I had a bad cold that just would not quit. The worst part was my cough and the congestion I felt both in my throat and in my sinuses and nose. Just about all other symptoms went away except for this. So, I decided I'd give this a try. The results were outstanding.

I know that other reviewers state that combining both an expectorant and cough suppressant doesn't make sense, but I beg to differ. These symptoms often appear at the same time and Mucinex DM quickly thins out the mucous regardless of whether its in your throat or in your nose. It makes it easier to cough up the nasty stuff, you just won't have the urge to cough over and over and over again. It works very fast and the whole time-release thing is a definite plus. I've only ever taken one pill at a time (see the beginning of my review), but I assume if things were really bad you could follow the directions on the label and try taking two every twelve hours. In any case, this stuff works for me. I highly recommend it! Just make sure you stay hydrated. It makes everything work better (the meds and your body).
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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.