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Mucinex 12 Hour Maximum Strength 1200 mg Guaifenesin Extended-Release Tablets for Excess Mucus Relief, Expectorant Aids Excess Mucus Removal, Chest Congestion Relief, 42 Tablets

  • Based on 18,294 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, May 12
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Features

  • EXCESS MUCUS RELIEF: Maximum Strength Mucinex 12hr extended-release tablets pack a powerful punch with 1200 mg guaifenesin expectorant, providing you with long-lasting chest congestion relief
  • AIDS EXCESS MUCUS REMOVAL: Maximum strength chest congestion relief; Mucinex 12hr lasts up to 12 hours and provides relief for your chest congestion and makes cough more productive
  • EXPECTORANTS FOR ADULTS: Mucinex helps clear lungs by thinning & loosening mucus; Say goodbye to excess mucus, say hello to chest congestion relief
  • EXTENDED RELEASE GUAIFENESIN: Experience long-lasting excess mucus relief with Mucinex's 12hr maximum strength extended-release 1200 mg guaifenesin bi-layer tablets with immediate & extended release
  • 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
  • QUALITY YOU CAN TRUST: Mucinex uses carbomer that is manufactured without the use of benzene

Description

Are you searching for reliable chest congestion relief for adults? Look no further than our Maximum Strength Mucinex 12 Hour Expectorant for excess mucus relief. Featuring a robust 1200mg of guaifenesin, this top-notch expectorant thins and loosens mucus thereby making coughs more productive. When the cold and flu season hits, trust Mucinex for powerful chest congestion relief. Our original bi-layer tablet provides immediate and extended-release and lasts up to 12 hours.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.38 x 5 x 3.5 inches; 3.1 ounces


Item model number ‏ : ‎ 6382402346


Date First Available ‏ : ‎ June 23, 2011


Manufacturer ‏ : ‎ Reckitt Benckiser


Best Sellers Rank: #6,105 in Health & Household (See Top 100 in Health & Household) #41 in Cold & Flu Medicine #745 in Sales & Deals


#41 in Cold & Flu Medicine:


#745 in Sales & Deals:


Customer Reviews: 4.8 4.8 out of 5 stars (20,612)


Brand Name: Mucinex


Product Benefits: Chest Congestion Relief


Specific Uses For Product: Chest Congestion


Active Ingredients: Guaifenesin


Item Form: Tablet


Age Range Description: Adult


Target Use Body Part: Lungs, Mouth, Nose


Container Type: Box


Flavor: Unflavored


Target Audience: Unisex-Adults


Package Type Name: Blister


Model Number: 6382402346


Special Ingredients: Guaifenesin


Dosage Form: Tablets


Global Trade Identification Number: 65


Manufacturer: Reckitt Benckiser


UPC: 363824023465


Manufacturer Part Number: LA-XEU2-4Y52


Item Weight: 3.1 Ounces


Item Dimensions: 1.38 x 5 x 3.5 inches


Number of Items: 1


Unit Count: 42.0 Count


Net Content Count: 42 Count


Additional Features: Long-Lasting


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 12

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews


  • Loosen the Mucus
Size: 42 Count (Pack of 1) Configuration: Release Tablets
When you have chest congestion stemming from mucus forming from your bronchial airways, Mucinex is a very good product to thinning that mucus. The thickness of the mucus helps to make the chest congested. I love this product. I have a mild case of COPD and it has helped to loosen my mucus and have a more productive cough. It gets rid of the tightness in my chest. I sleep better at night. I get great feedback from those I already have recommended the product to. I wholeheartedly recommend this product! ... show more
Reviewed in the United States on February 22, 2026 by L. Benson

  • Mucinex
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Awesome, effective product!!
Reviewed in the United States on April 1, 2026 by J. Altman

  • Great price!
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Came on time and in good shape. Great price for this size package.
Reviewed in the United States on April 13, 2026 by Trish

  • Great Product Great Seller GREAT AMAZON SERVICE
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Mucinex is very effective. The seller with Amazon is great also.
Reviewed in the United States on March 22, 2026 by Van Stanfield

  • Great Product
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Works well, well worth the money
Reviewed in the United States on January 2, 2026 by Jim Blume

  • Works great for sinuses
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Great for sinuses!
Reviewed in the United States on March 2, 2026 by Karla Kopp

  • Effective
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Mucinex works well with my cough. It is effective in loosening hard to cough up phlegms.
Reviewed in the United States on April 18, 2026 by Nel

  • Stops all the congestion!
Size: 42 Count (Pack of 1) Configuration: Release Tablets
Very good product. Helps clear congestion so you can breathe easier and it also eliminates all the coughing and sneezing that comes with the congestion.
Reviewed in the United States on January 22, 2026 by Cathy

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