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Customer reviews for Mucinex 12-Hour Chest Congestant & Mucus Relief Tablets, 600 mg Guaifenesin 120 ct. for
Mucinex 12-Hour Chest Congestant & Mucus Relief Tablets, 600 mg Guaifenesin 120 ct.
4.8 out of 5 stars
stars1,094 ratings211 reviews
  1. 5 stars90% (981)
  2. 4 stars7% (78)
  3. 3 stars2% (19)
  4. 2 stars0% (4)
  5. 1 star1% (12)
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Showing 1-10 of 211 reviews
Sep 10, 2025
JERRY92606
5 out of 5 stars review

Verified Purchase

Mucinex ER works quickly & ongoing RELIEF.

Great Product, helps thin mucus in throat & chest to make it easier to swallow & or clear throat & spit it out. I prefer the 600mg bilayered Extended Release tablet, bc it you need 1 or 2 tablets--taking 1 600 mg gives you more flexibility in when & how you can take it without exceeding the maximum tablets that can be taken in 24 hours. As a suggestion please check with your doctor or pharmacist if you aŕe having other symptoms such as fever &/or difficulty swallowing--you may have a chronic condition that needs other medical attention / treatment.

Helpful?5CSBS325TDSI36382404128
reply from Mucinex Team

We would like the chance to speak with you about your experience with Mucinex® SE. When you have a chance, please give us a call at 1-866-529-8804. We are available Monday to Friday from 9am until 5pm, EST. When calling, kindly refer to reference# 7206240.

Oct 5, 2025
Howard
5 out of 5 stars review

Verified Purchase

Does eliminate my congestion

I have used Mucinex for years. When I need congestion, I turn to Mucinex for 2 reasons. Mucinex is effective at eliminating congestion and is affordable when purchased at SamsClub.

Helpful?5CSBS325TDSI36382404128
Mar 22, 2026
Lisa
5 out of 5 stars review

Verified Purchase

Works great!

As per my dr. it is great for daily usage.

Helpful?5CSBS325TDSI36382404128
reply from Mucinex Team

Hi Lisa. We would like the chance to speak with you about your usage of our Mucinex® product. When you have a chance, please give us a call at 1-866-529-8804. We are available Monday to Friday from 9am until 5pm, EST. When calling, kindly refer to reference# 8153742.

Jul 6, 2025
Brandi
5 out of 5 stars review

Verified Purchase

Mucinex

I have to take mucinex almost everyday per doctors order. I’m thankful it works so good but it’s so expensive at the same time. I’m just glad I do save money buying it in bulk

Review from walmart.com
Helpful?5CSBS325TDSI36382404128
Oct 8, 2025
Joyful
5 out of 5 stars review

Verified Purchase

Superb!

We highly recommend!!!! It works very well.

Helpful?5CSBS325TDSI36382404128
Jun 15, 2025
Donald
5 out of 5 stars review

Verified Purchase

No Mr. Mucus For Me !

Mucinex is what they claim it to be, a very good product. First time I have used Mucinex and it did a great job, gave me plenty of relief.

Review from walmart.com
Helpful?5CSBS325TDSI36382404128
Jan 29, 2026
Lola
5 out of 5 stars review

Verified Purchase

Good price

Good price

Helpful?5CSBS325TDSI36382404128
Mar 2, 2026
Cg
5 out of 5 stars review

Verified Purchase

8.99 for 14 ct everywhere… Sams 120ct for less tha

Such a value

Helpful?5CSBS325TDSI36382404128
Feb 14, 2024
Sandy W
5 out of 5 stars review

Verified Purchase

Great product that helps me on a daily basis

My doctor recommended I take these every day to help with mucus buildup from my Asthma and COPD. I have been taking these daily for over a year now and they have sure made a difference. I hope Sam's continues to have these in their Instant Savings because it sure helps to afford these with my limited income. I have tried other generic brands but none work as well as these.

Helpful?5CSBS325TDSI36382404128
reply from Mucinex Team

Hi Sandy. We would like the chance to speak with you about your experience with Mucinex® SE. When you have a chance, please give us a call at 1-866-529-8804. We are available Monday to Friday from 9am until 5pm, EST. When calling, kindly refer to reference# 3632983.

Sep 30, 2025
Deborah Jordan
1 out of 5 stars review

Verified Purchase

Cheated Out of Discount for Instant Savings Item

I am happy with the product, but I was cheated out of the “Instant Savings” price when I purchased the Mucinrx. I met all requirements to receive the discount, but I was charged full price. I have not been able to get the $6+ returned to me. I expect better from Sam’s Club.

Helpful?5CSBS325TDSI36382404128