Hero image 0 of Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 40 Tablets, 0 of 14
Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 40 Tablets
Key item features
- EXCESS MUCUS RELIEF: Mucinex 12hr extended-release tablets pack a powerful punch with 600 mg guaifenesin expectorant, providing you with long-lasting chest congestion relief
- AIDS EXCESS MUCUS REMOVAL: Mucinex SE lasts up to 12 hours, provides chest congestion relief and makes coughs 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 extended-release 600mg guaifenesin tablets; our original bi-layer tablets have both immediate & extended release
- 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
Specs
- Medicine strength600mg
- Treatment effective time12 h
- SymptomsChest Congestion, Cough
- FeaturesExtended Release
- Count per pack40
- FormTablets
Current price is USD$25.4763.7 ¢/count
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About this item
Product details
Are you searching for reliable chest congestion relief for adults? Look no further than Mucinex 12 Hour Expectorant for excess mucus relief. Featuring a robust 600mg 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. Use as directed, for Adults and Children 12 years of age and over.
- EXCESS MUCUS RELIEF: Mucinex 12hr extended-release tablets pack a powerful punch with 600 mg guaifenesin expectorant, providing you with long-lasting chest congestion relief
- AIDS EXCESS MUCUS REMOVAL: Mucinex SE lasts up to 12 hours, provides chest congestion relief and makes coughs 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 extended-release 600mg guaifenesin tablets; our original bi-layer tablets have both immediate & extended release
- 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
info:
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Specifications
Medicine strength
600mg
Treatment effective time
12 h
Symptoms
Chest Congestion, Cough
Features
Extended Release
Indications
Stop Use Indications
Stop use and ask a doctor if cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious illness. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away. Tamper evident:. Do not use if carton is open or if printed seal on blister is broken or missing.
Health Concern
Cold Sinus Relief
Directions
Instructions
Directions. Do not crush, chew, or break tablet. Take with a full glass of water. This product can be administered without regard for the timing of meals. Adults and children 12 years of age and over: 1 or 2 tablets every 12 hours. Do not exceed 4 tablets in 24 hours. Children under 12 years of age: do not use WARNINGS. DO NOT USE. For children under 12 years of age. Ask a doctor before use if you have. Persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema. Cough accompanied by too much phlegm (mucus). Stop use and ask a doctor if. Cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious illness. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away. Tamper evident:. Do not use if carton is open or if printed seal on blister is broken or missing.
Fabric Care Instructions
N/A;
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warranty url
N/A
Ingredients
Inactive Ingredients
Carbomer Homopolymer Type B; FD&C Blue #1 Aluminum Lake; Hypromellose, USP; Magnesium Stearate, NF; Microcrystalline Cellulose, NF; Sodium Starch Glycolate, NF
Ingredients
Active Ingredients: In Each Extended-Release Bi-Layer Tablet: Guaifenesin (600 mg). Purpose: Expectorant. Inactive Ingredients: Carbomer Homopolymer Type B; FD&C Blue 1 Aluminum Lake; Hypromellose, USP; Magnesium Stearate, NF; Microcrystalline Cellulose, NF; Sodium Starch Glycolate, NF.
Active Ingredients
Active Ingredients: In Each Extended-Release Bi-Layer Tablet: Guaifenesin (600 mg). Purpose: Expectorant. Inactive Ingredients: Carbomer Homopolymer Type B; FD&C Blue 1 Aluminum Lake; Hypromellose, USP; Magnesium Stearate, NF; Microcrystalline Cellulose, NF; Sodium Starch Glycolate, NF.
Active Ingredient Name
In Each Extended-Release Bi-Layer Tablet: Active Ingredients: Guaifenesin (600 mg), Expectorant. Inactive Ingredients: Carbomer Homopolymer Type B, FD&C Blue No. 1 Aluminum Lake, Hypromellose, USP, Magnesium Stearate, NF, Microcrystalline Cellulose, NF, Sodium Starch Glycolate, NF.
Warnings
State Chemical Disclosure
Mucinex
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Showing 1-3 of 264 reviews
Mar 18, 2026
Walmart customer
Top Reviewer
Item details
Color: Style 2
5 out of 5 stars review
Verified Purchase
Helps keep my chest open and easier breathing.
I have chronic Asthma, which makes me wake up with a cruddy chest every morning. I take one at bedtime. These expectorant pills help me get a clear chest easily after I get up. Without them I cough for a few hours. Then I can exercise easier too.
Helpful?96ed6750-0b0c-11f1-8e30-63e7131886fb12548287
Feb 24, 2026
Jennifer
Item details
Color: Style 2
5 out of 5 stars review
Verified Purchase
Key is to never let it sit in your mouth, get a drink before you get ready to take it but yes great relief!
Helpful?96ed6750-0b0c-11f1-8e30-63e7131886fb12548287
Feb 28, 2026
Trisha
Top Reviewer
5 out of 5 stars review
Verified Purchase
Love the larger sizes
I am someone who takes these twice daily and being able to get the larger quantities is totally worth it!
Helpful?96ed6750-0b0c-11f1-8e30-63e7131886fb12548287
