Hero image 0 of Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 40 Tablets, 0 of 6
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
Price when purchased online
Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $25.47
Subscribe
$25.47
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $25.47
One-time purchase
$25.47
How do you want your item?
Plus, get 50% off an annual plan at checkout!
Ships to
Arrives by Tomorrow
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
FSA and HSA eligible
More seller options (3)
Starting from $18.99
Get 50% off a year of Walmart+
Exclusions, T&C apply. Claim offer
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:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
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
Similar items you might like
Based on what customers bought
Deal HealthA2Z® Mucus Relief | Guaifenesin 1200 mg | NO Benzene | 100 Tablets | Maximum Strength | 12 Hour | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus $13.56 Was $16.95
Deal
SponsoredNow$1356current price Now $13.56, Was $16.95$16.95You save $3.39You save$3.39HealthA2Z® Mucus Relief | Guaifenesin 1200 mg | NO Benzene | 100 Tablets | Maximum Strength | 12 Hour | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus
7714.7 out of 5 Stars. 771 reviewsSave with
Shipping, arrives in 2 daysDeal HealthA2Z® Mucus Relief | Guaifenesin 600 mg | 12 Hour | 150 Counts | No Benzene | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus | Extended Release $11.96 Was $14.95
Deal
SponsoredNow$1196current price Now $11.96, Was $14.95$14.95You save $2.99You save$2.99HealthA2Z® Mucus Relief | Guaifenesin 600 mg | 12 Hour | 150 Counts | No Benzene | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus | Extended Release
8204.6 out of 5 Stars. 820 reviewsSave withShipping, arrives in 2 daysEquate Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets, 600 mg, 12 Hour Expectorant, 20 Count $6.37 31.9 ¢/ea
$637current price $6.3731.9 ¢/eaEquate Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets, 600 mg, 12 Hour Expectorant, 20 Count
304.7 out of 5 Stars. 30 reviews(2 pack) Mucinex Maximum Strength 12 Hour Chest Congestion Expectorant Relief Tablets, 1200 mg, 42 Count, Thins & Loosens Mucus $28.76 68.5 ¢/count
2 optionsAvailable in additional 2 options$2876current price $28.7668.5 ¢/count(2 pack) Mucinex Maximum Strength 12 Hour Chest Congestion Expectorant Relief Tablets, 1200 mg, 42 Count, Thins & Loosens Mucus
14834.8 out of 5 Stars. 1483 reviews100+ bought since yesterday Mucinex Rapid Clear Maximum Strength Cold Medicine & Expectorant, Fever, Pain, Headache, & Excess Mucus Relief with Acetaminophen & Guaifenesin, Rapid Release Caplets for Adults, 20 Count $13.97 69.9 ¢/count
100+ bought since yesterday
$1397current price $13.9769.9 ¢/countMucinex Rapid Clear Maximum Strength Cold Medicine & Expectorant, Fever, Pain, Headache, & Excess Mucus Relief with Acetaminophen & Guaifenesin, Rapid Release Caplets for Adults, 20 Count
17234.6 out of 5 Stars. 1723 reviews500+ bought since yesterday Mucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 14 Tablets $14.97 Was $17.12 $1.07/count
500+ bought since yesterday
16 optionsAvailable in additional 16 options$1497current price $14.97, Was $17.12$17.12$1.07/countMucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 14 Tablets
32354.6 out of 5 Stars. 3235 reviewsCurist Guaifenesin 600 mg 300 Ct Mucus Relief Tablets OTC Expectorant for Chest Congestion $31.99
Sponsored$3199current price $31.99Curist Guaifenesin 600 mg 300 Ct Mucus Relief Tablets OTC Expectorant for Chest Congestion
1474.8 out of 5 Stars. 147 reviewsSave withShipping, arrives in 2 daysRobitussin CF Max Severe Multi-Symptom Relief Cough Cold and Flu Medicine, 8 fl oz $12.97 $1.62/fl oz
Sponsored$1297current price $12.97$1.62/fl ozRobitussin CF Max Severe Multi-Symptom Relief Cough Cold and Flu Medicine, 8 fl oz
8894.7 out of 5 Stars. 889 reviewsSave withDelivery as soon as 1 hourShipping, arrives in 2 daysPickup as soon as tomorrow100+ bought since yesterday Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 20 Tablets $14.97 74.9 ¢/count
100+ bought since yesterday
$1497current price $14.9774.9 ¢/countMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 20 Tablets
33384.7 out of 5 Stars. 3338 reviewsMucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 28 Tablets $25.47 91.0 ¢/count
$2547current price $25.4791.0 ¢/countMucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 28 Tablets
6784.7 out of 5 Stars. 678 reviewsEquate Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets, 600 mg, 12 Hour Expectorant, 40 Count $12.47
$1247current price $12.47Equate Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets, 600 mg, 12 Hour Expectorant, 40 Count
54.8 out of 5 Stars. 5 reviewsMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 20 Tablets $14.97 Was $20.71 74.9 ¢/count
$1497current price $14.97, Was $20.71$20.7174.9 ¢/countMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 20 Tablets
37064.7 out of 5 Stars. 3706 reviews100+ bought since yesterday Equate Mucus Relief DM, Extended-Release Tablets, Chest Congestion Relief and Cough Suppressant $6.37 31.9 ¢/count
100+ bought since yesterday
2 optionsAvailable in additional 2 options$637current price $6.3731.9 ¢/countEquate Mucus Relief DM, Extended-Release Tablets, Chest Congestion Relief and Cough Suppressant
31294.7 out of 5 Stars. 3129 reviewsMucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 7 Tablets $7.97 $1.14/count
$797current price $7.97$1.14/countMucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 7 Tablets
10924.7 out of 5 Stars. 1092 reviewsMucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 42 Tablets $28.76 68.5 ¢/count
$2876current price $28.7668.5 ¢/countMucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 42 Tablets
19444.7 out of 5 Stars. 1944 reviews100+ bought since yesterday Spirit 360 Fast Acting Mucus and Phlegm Relief ,15 Caplets, Guaifenesin 400mg - Expectorant $6.30 42.0 ¢/count
100+ bought since yesterday
2 optionsAvailable in additional 2 options$630current price $6.3042.0 ¢/countSpirit 360 Fast Acting Mucus and Phlegm Relief ,15 Caplets, Guaifenesin 400mg - Expectorant
20014.6 out of 5 Stars. 2001 reviewsEquate Mucus Relief DM Maximum Strength Cough Suppressant & Expectorant Liquid, 6 fl oz $9.83 $1.64/fl oz
$983current price $9.83$1.64/fl ozEquate Mucus Relief DM Maximum Strength Cough Suppressant & Expectorant Liquid, 6 fl oz
7894.5 out of 5 Stars. 789 reviewsMucinex Fast-Max Cold and Flu Medicine, Chest Congestion, Cough, Sore Throat, Nasal Decongestant, 6 fl oz $13.97 $2.33/fl oz
2 optionsAvailable in additional 2 options$1397current price $13.97$2.33/fl ozMucinex Fast-Max Cold and Flu Medicine, Chest Congestion, Cough, Sore Throat, Nasal Decongestant, 6 fl oz
11324.7 out of 5 Stars. 1132 reviewsDelsym Adult 12 hour Cough Relief Medicine, Powerful Cough Relief for 12 Good Hours, Cough Suppressing Liquid, #1 Pharmacist Recommended, Grape Flavor, 5 Fl Oz $14.97 $2.99/fl oz
$1497current price $14.97$2.99/fl ozDelsym Adult 12 hour Cough Relief Medicine, Powerful Cough Relief for 12 Good Hours, Cough Suppressing Liquid, #1 Pharmacist Recommended, Grape Flavor, 5 Fl Oz
19144.7 out of 5 Stars. 1914 reviewsMucinex Fast-Max DM Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA/HSA, 6 fl oz $13.97 Was $17.00 $2.33/fl oz
2 optionsAvailable in additional 2 options$1397current price $13.97, Was $17.00$17.00$2.33/fl ozMucinex Fast-Max DM Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA/HSA, 6 fl oz
18444.6 out of 5 Stars. 1844 reviews
Customer ratings & reviews
How item rating is calculated
Customer photos
+4 images
Sort by |
Showing 1-3 of 267 reviews
Jun 5, 2026
Siscoop
5 out of 5 stars review
Verified Purchase
Miracle worker
Started Mucinex a week ago. Post nasal drip improved 1st time. I take 1-2 pills daily. I'm no longer dealing with/phlegm, throat clearing or coughing. This is life changing - no kidding.
Helpful?673f9bf0-688f-11f1-970f-13faca9cd0ac12548287
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?673f9bf0-688f-11f1-970f-13faca9cd0ac12548287
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?673f9bf0-688f-11f1-970f-13faca9cd0ac12548287
