Hero image 0 of Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, 100 Tablets, 0 of 11
Mucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, 100 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
- 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
- Active ingredientsGuaifenesin 600mg
- Treatment effective time12 h
- FeaturesExtended Release
- FormTablets
- Over-the-counter medicine typeChest Decongestant
- SymptomsCongestion
Current price is USD$35.9936.0 ¢/ea
Price when purchased online
Out of stock
How do you want your item?
Out of stock
FSA and HSA eligible
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.
- 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
- 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.
Specifications
Active ingredients
Guaifenesin 600mg
Treatment effective time
12 h
Features
Extended Release
Form
Tablets
Indications
Health Concern
Cold
Directions
Dosage
In Each Extened-Release Bi-Layer Tablet
Instructions
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: one or two tablets every 12 hours. Do not exceed 4 tablets in 24 hours. Children under 12 years of age: do not use.
Ingredients
Inactive Ingredients
Carbomer 934P NF; 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
Guaifenesin 600mg
Warnings
State Chemical Disclosure
None
Similar items you might like
Based on what customers bought
HealthA2Z® Mucus Relief | Guaifenesin 400mg| No Benzene | 300 Tablets | Immediate Release, Expectorant $14.20
Sponsored$1420current price $14.20HealthA2Z® Mucus Relief | Guaifenesin 400mg| No Benzene | 300 Tablets | Immediate Release, Expectorant
5104.7 out of 5 Stars. 510 reviewsSave with
Shipping, arrives in 2 daysHealthA2Z® Mucus Relief | Guaifenesin 1200 mg | NO Benzene | 100 Tablets | Maximum Strength | 12 Hour | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus $16.95
2 optionsAvailable in additional 2 options$1695current price $16.95HealthA2Z® Mucus Relief | Guaifenesin 1200 mg | NO Benzene | 100 Tablets | Maximum Strength | 12 Hour | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus
7614.7 out of 5 Stars. 761 reviewsMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 80 Tablets $22.48 Was $32.97 28.1 ¢/count
$2248current price $22.48, Was $32.97$32.9728.1 ¢/countMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 80 Tablets
5794.8 out of 5 Stars. 579 reviews100+ 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
33244.7 out of 5 Stars. 3324 reviewsMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 68 Tablets $31.97 47.0 ¢/count
$3197current price $31.9747.0 ¢/countMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 68 Tablets
3244.8 out of 5 Stars. 324 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
32004.6 out of 5 Stars. 3200 reviews100+ bought since yesterday Vicks VapoCOOL SEVERE Medicated Sore Throat Drops, Menthol, Winterfrost Flavor, 45 count $4.97 11.0 ¢/count
100+ bought since yesterday
Sponsored$497current price $4.9711.0 ¢/countVicks VapoCOOL SEVERE Medicated Sore Throat Drops, Menthol, Winterfrost Flavor, 45 count
24334.7 out of 5 Stars. 2433 reviewsSave withDelivery as soon as 1 hourPickup as soon as tomorrowVicks VapoDrops Cough Drops for Cough and Sore Throat Relief, Cherry, 50 count $4.97 9.9 ¢/count
Sponsored$497current price $4.979.9 ¢/countVicks VapoDrops Cough Drops for Cough and Sore Throat Relief, Cherry, 50 count
2944.8 out of 5 Stars. 294 reviewsSave withDelivery as soon as 1 hourShipping, arrives tomorrowPickup as soon as tomorrowMucinex Expectorant 12 Hour Extended Release Tablets, 120ct $59.99
3 optionsAvailable in additional 3 options$5999current price $59.99Mucinex Expectorant 12 Hour Extended Release Tablets, 120ct
11254.8 out of 5 Stars. 1125 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
14744.7 out of 5 Stars. 1474 reviewsMucinex 12-Hour Chest Congestion Expectorant Tablets, 600mg 100 Count $39.98
$3998current price $39.98Mucinex 12-Hour Chest Congestion Expectorant Tablets, 600mg 100 Count
2454.8 out of 5 Stars. 245 reviewsCoricidin HBP Chest Congestion & Cough Medicine, Liquid Gels, 20 Ct $8.46 42.3 ¢/count
$846current price $8.4642.3 ¢/countCoricidin HBP Chest Congestion & Cough Medicine, Liquid Gels, 20 Ct
20694.7 out of 5 Stars. 2069 reviewsHealthA2Z® Decongestant PE | Phenylephrine 10 mg | 300 Tablets | Maximum Strength $9.95
Sponsored$995current price $9.95HealthA2Z® Decongestant PE | Phenylephrine 10 mg | 300 Tablets | Maximum Strength
4384.7 out of 5 Stars. 438 reviewsSave withShipping, arrives in 2 daysMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 40 Tablets $25.47 63.7 ¢/count
$2547current price $25.4763.7 ¢/countMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, FSA, 40 Tablets
5764.8 out of 5 Stars. 576 reviewsVicks DayQuil & NyQuil Intense Flu Liquid, Flu Medicine for Adults, Cherry, 12 fl oz $21.97 91.5 ¢/fl oz
2 optionsAvailable in additional 2 options$2197current price $21.9791.5 ¢/fl ozVicks DayQuil & NyQuil Intense Flu Liquid, Flu Medicine for Adults, Cherry, 12 fl oz
3624.7 out of 5 Stars. 362 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
16964.6 out of 5 Stars. 1696 reviewsMucinex Fast-Max Cold and Flu Caplets, Day 12 ct and Night 8 ct Combo Pack $13.97 69.9 ¢/count
$1397current price $13.9769.9 ¢/countMucinex Fast-Max Cold and Flu Caplets, Day 12 ct and Night 8 ct Combo Pack
5124.7 out of 5 Stars. 512 reviewsMucinex Fast Max Cold and Flu Relief Liquid Gels, Maximum Strength Daytime (16 Count) and Nighttime (8 Count), Combo Pack $18.47 77.0 ¢/count
$1847current price $18.4777.0 ¢/countMucinex Fast Max Cold and Flu Relief Liquid Gels, Maximum Strength Daytime (16 Count) and Nighttime (8 Count), Combo Pack
7434.6 out of 5 Stars. 743 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
6774.7 out of 5 Stars. 677 reviewsMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 20 Tablets $14.97 74.9 ¢/count
$1497current price $14.9774.9 ¢/countMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 20 Tablets
36924.7 out of 5 Stars. 3692 reviews
Check out these related products
Mucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 28 Tablets $25.47 91.0 ¢/count
$2547current price $25.4791.0 ¢/countMucinex DM 12 Hour Max Strength Expectorant & Cough Medicine, Excess Mucus Relief, FSA, 28 Tablets
7934.7 out of 5 Stars. 793 reviewsMucinex Maximum Strength 56 Tablets $39.99 Was $60.97
$3999current price $39.99, Was $60.97$60.97Mucinex Maximum Strength 56 Tablets
9604.8 out of 5 Stars. 960 reviewsMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 40 Tablets $25.47 63.7 ¢/count
$2547current price $25.4763.7 ¢/countMucinex DM 12 Hour Expectorant & Cough Medicine, Excess Mucus Relief & Cough Suppressant, 40 Tablets
4624.7 out of 5 Stars. 462 reviewsMucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 7 Tablets $7.97 Was $9.99 $1.14/count
$797current price $7.97, Was $9.99$9.99$1.14/countMucinex 12 Hour Max Strength Expectorant, OTC Medicine for Excess Mucus Relief, FSA/HSA, 7 Tablets
3794.6 out of 5 Stars. 379 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
10864.7 out of 5 Stars. 1086 reviewsMucinex Nightshift Cold and Flu Medicine, Fever Reducer, OTC Nighttime Cough Relief, 20 Caplets $10.97 54.9 ¢/count
$1097current price $10.9754.9 ¢/countMucinex Nightshift Cold and Flu Medicine, Fever Reducer, OTC Nighttime Cough Relief, 20 Caplets
6304.7 out of 5 Stars. 630 reviewsMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, 500 Tablets $182.74 Was $255.97 36.5 ¢/count
$18274current price $182.74, Was $255.97$255.9736.5 ¢/countMucinex 12 Hour Expectorant, OTC Medicine for Excess Mucus Relief, Chest Congestion, 500 Tablets
334.5 out of 5 Stars. 33 reviewsMucinex Fast-Max & NightShift Combo Pack, Cough and Cold Medicines For Mucus Relief, 6 fl oz, 2 Pack $22.44 $1.87/fl oz
$2244current price $22.44$1.87/fl ozMucinex Fast-Max & NightShift Combo Pack, Cough and Cold Medicines For Mucus Relief, 6 fl oz, 2 Pack
3164.8 out of 5 Stars. 316 reviewsMucinex Expectorant Extended-Release Bi-Layer Tablets, 600 mg - 20 Ct., Pack of 6 $69.20
$6920current price $69.20Mucinex Expectorant Extended-Release Bi-Layer Tablets, 600 mg - 20 Ct., Pack of 6
1754.7 out of 5 Stars. 175 reviews100+ bought since yesterday Mucinex Instasoothe Sore Throat Lozenges, Honey & Echinacea Flavor, FSA Eligible, 40 Count $4.98 12.5 ¢/count
100+ bought since yesterday
6 optionsAvailable in additional 6 options$498current price $4.9812.5 ¢/countMucinex Instasoothe Sore Throat Lozenges, Honey & Echinacea Flavor, FSA Eligible, 40 Count
20184.5 out of 5 Stars. 2018 reviewsTYLENOL 8 HR Arthritis Pain Extended Release 650 mg Caplets 225 ea (Pack of 3) $89.99
$8999current price $89.99TYLENOL 8 HR Arthritis Pain Extended Release 650 mg Caplets 225 ea (Pack of 3)
2024.5 out of 5 Stars. 202 reviews
Customer ratings & reviews
How item rating is calculated
Customer photos
+6 images
Sort by |
Showing 1-3 of 269 reviews
Feb 14, 2017
Rose
5 out of 5 stars review
Verified Purchase
Super product and fast service all in one!
My ENT recommended this for me and after shopping around, I founded the Best Buy here at Walmart. They not only offered the largest amount, but the best price. I use this product faithfully per ENT'S recommendation! WALMART ONLINE SERVICE is great and fast!
Helpful?6733dc20-688f-11f1-970f-13faca9cd0ac45721808
May 22, 2026
Kmpl
Item details
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
Wonderful
It's very helpful for helping get mucus out of your chest and lungs when you need help getting it out.
Helpful?6733dc20-688f-11f1-970f-13faca9cd0ac45721808
Oct 10, 2025
CAROLINE
Item details
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
The benefits of taking Mucinex
It relieves my head congestion super fast. Shortly after taking a dose, my sinuses begin to crack, which means that they are opening. My doctor recommends it, too!
Helpful?6733dc20-688f-11f1-970f-13faca9cd0ac45721808
