member's mark 12-hour maximum strength chest congestion expectorant tablets, 1200 mg guaifenesin, 56 ct. Front-facing rectangular box with Member's Mark logo, blue-to-yellow gradient background, prominent "Mucus Relief" and "Guaifenesin Extended-Release Tablets, 1200 mg" text, oval actual-size pill illustration, callouts for "Relieves chest congestion," "Thins and loosens mucus," 12 HR clock icon, and "56 extended-release tablets" count.
Member's Mark 12-Hour Maximum Strength Chest Congestion Expectorant Tablets, 1200 mg Guaifenesin, 56 ct.
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Member's Mark 12-Hour Maximum Strength Chest Congestion Expectorant Tablets, 1200 mg Guaifenesin, 56 ct.

|225 ratings

Highlights

  • Compare to Maximum Strength Mucinex® DM Extended-Release Tablets active ingredients
  • Extended-release tablets provide immediate relief for up to 12 hours
  • Loosens phlegm to rid passageways of bothersome mucus
  • Helps control cough
  • Provides chest congestion relief
  • Maximum stregth formula

Specifications

  • Expectorant and Cough Suppressant
  • Controls Cough
  • Thins & Loosens Mucus
  • Extended and Immediate Release Bi-Layer Tablet
  • Tamper Evident Packaging: Do not use if carton is open or if printed seal on blister is broken or missing.

This product is restricted in the following states:

AK,AZ,CA,CO,DE,FL,GA,KY,LA,MA,MI,NJ,NV,NY,OH,OR,PA,TN,TX,VA,WA,WI,WV

Experience the convenience of ordering curbside pickup or shopping in-club to complete your purchase

Current price is $14.98
Prices may vary in club and online
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Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Tomorrow
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Order within 13 hr 36 min
Return or replace anytime.
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Mucinex 12-Hour Maximum Strength Chest Congestion Expectorant Tablets, 1200 mg Guaifenesin 56 ct. $25.48 Was $31.98 57.1 ¢/ea

Mucinex 12-Hour Maximum Strength Chest Congestion Expectorant Tablets, 1200 mg Guaifenesin 56 ct.
current price Now $25.48, Was $31.98
57.1 ¢/ea

Mucinex 12-Hour Maximum Strength Chest Congestion Expectorant Tablets, 1200 mg Guaifenesin 56 ct.

4.8294 out of 5 stars
4.8294 out of 5 Stars. 932 reviews
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About this item

Product details

The Member's Mark Maximum Strength Mucus Relief DM tablets are a potent solution designed to provide up to 12-hour relief from cough and mucus. The tablets contain two active ingredients - Guaifenesin 1200 mg, which acts as an expectorant to thin and loosen mucus, and Dextromethorphan HBr 60mg, a cough suppressant that relieves coughing. This product is comparable to the active ingredients in Maximum Strength Mucinex® DM Extended-Release Tablets. However, this product is not manufactured or distributed by RB HEALTH US LLC, owner of the registered trademark Mucinex®DM.

Usage and Benefits

These tablets are designed to help loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus, making coughs more productive. They also temporarily relieve cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants. They can reduce the intensity of coughing and the impulse to cough, helping you get a good night's sleep.

Directions for Use

For optimal results, do not crush, chew, or break the extended-release tablet. Instead, take it with a full glass of water. This product can be administered without regard for timing of meals. For adults and children aged 12 years and above, the recommended dosage is 1 extended-release tablet every 12 hours, not exceeding 2 extended-release tablets in 24 hours. This product is not suitable for children under 12 years of age.

Warnings and Precautions

Do not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), certain drugs for depression, psychiatric or emotional conditions, or Parkinson’s disease, or for 2 weeks after stopping the MAOI drug. If you are unsure if your prescription drug contains an MAOI, consult with a doctor or pharmacist before using this product. Stop usage and seek medical help if you experience an allergic reaction, have trouble urinating, or if your cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. Pregnant or breastfeeding individuals should consult a health professional before use. Keep out of reach of children. In case of overdose, seek immediate medical help or contact a Poison Control Center right away (1-800-222-1222).

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Key specifications

Specifications

  • Expectorant and Cough Suppressant
  • Controls Cough
  • Thins & Loosens Mucus
  • Extended and Immediate Release Bi-Layer Tablet
  • Tamper Evident Packaging: Do not use if carton is open or if printed seal on blister is broken or missing.

This product is restricted in the following states:

AK,AZ,CA,CO,DE,FL,GA,KY,LA,MA,MI,NJ,NV,NY,OH,OR,PA,TN,TX,VA,WA,WI,WV

Experience the convenience of ordering curbside pickup or shopping in-club to complete your purchase

Member ratings & reviews

4.7 out of 5 stars
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225 ratings46 reviews
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Showing 1-3 of 46 reviews

Oct 14, 2026
Reviewer name: Mr Bill
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mucus relief

Works every bit as good as the name brands

Helpful?18XKLWPZBULS13622350544
Oct 9, 2026
Reviewer name: PeggySue
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mucus relief

Mucus relief good product works great

Helpful?18XKLWPZBULS13622350544
Apr 19, 2026
Reviewer name: Ann
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Just what I need!

I take mucinex for the 100% guenisen. I take it as part of the guefenison protocol for fibromyalgia myalgia. It is affordable and it works!

Helpful?18XKLWPZBULS13622350544
Current price is $14.98
Prices may vary in club and online
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Tomorrow
.
Order within 13 hr 36 min
Return or replace anytime.