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Customer reviews for Mucinex 12 Hour Cold and Flu Medicine for Adults, 50 Tablets for
Mucinex 12 Hour Cold and Flu Medicine for Adults, 50 Tablets
4.8 out of 5 stars
stars
1,357 ratings1,357 reviews
  1. 5 stars82% (1,118)
  2. 4 stars15% (200)
  3. 3 stars3% (34)
  4. 2 stars0% (4)
  5. 1 star0% (1)

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Showing 361-370 of 1,357 reviews
Sep 9, 2026
Reviewer name: StephanieG
5 out of 5 stars
5 out of 5 stars review

Convenient 12-hour relief for multiple cold symptoms

[This review was collected as part of a promotion.] I like that this Mucinex provides multi-symptom relief in one product. It helped relieve my cold symptoms, especially congestion and coughing, and I appreciate that it lasts up to 12 hours so I don't have to take it as often. The directions are easy to follow and the packaging clearly explains what symptoms it treats. Overall, it's convenient to have on hand during cold and flu season.

Review from Mucinex
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Sep 6, 2026
Reviewer name: LaraibA
5 out of 5 stars
5 out of 5 stars review

Works great for reliving multiple cold and fever symptoms

[This review was collected as part of a promotion.] I love that one dose provided up to 12 hours of relief, so I don't have to constantly remember to take more medicine throughout the day. It's especially convenient when you're feeling run-down and dealing with multiple symptoms at once. It helped make my symptoms feel much more manageable and allowed me to get through the day more comfortably.

Review from Mucinex
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Sep 7, 2026
Reviewer name: YenT
4 out of 5 stars
4 out of 5 stars review

Act quick and work as it said

[This review was collected as part of a promotion.] These tablets got bi layers design, so part of it releases right away and the rest will kick in over time. I take it when my chest feels heavy and tight, within a little while I can feel things starting to break up. They are helpful during the cold season.

Review from Mucinex
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Sep 14, 2026
Reviewer name: MadisonS
4 out of 5 stars
4 out of 5 stars review

Instant Relief

[This review was collected as part of a promotion.] I was recently sick with a pretty bad cold and this was a lifesaver. It has naproxen which helped with my headache and body aches. It helped to thin and clear the mucus quicker than previous products I have used.

Review from Mucinex
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Sep 5, 2026
Reviewer name: MariannaC
5 out of 5 stars
5 out of 5 stars review

Great when taking from first symptoms

[This review was collected as part of a promotion.] I love all musinex products especially children's lines . It was my first time trying it for myself and oh boy I felt better within first hour , after a good night sleep I woke up like. Nothing happens

Review from Mucinex
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Sep 5, 2026
Reviewer name: JenC
5 out of 5 stars
5 out of 5 stars review

Fast and effective

[This review was collected as part of a promotion.] I was dealing with horrible congestion from a cold and was having such a hard time getting any relief. After taking Mucinex, I noticed a huge improvement in how congested I felt. It helped relieve my cold symptoms and fever and made it so much easier to get through the day and rest comfortably at night. I really appreciated that the relief lasted for up to 12 hours, so I wasn't constantly worrying about taking another dose. It worked consistently for me and gave me the much-needed relief I had been looking for. The long-lasting effectiveness is definitely what stood out to me the most. I had a great experience with this product and would absolutely recommend Mucinex to my family and friends when they're looking for relief from tough cold and congestion symptoms.

Review from Mucinex
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Sep 13, 2026
Reviewer name: SarahO
5 out of 5 stars
5 out of 5 stars review

Convenient all in one option

[This review was collected as part of a promotion.] I recently tried Mucinex 12 HR Cold & Fever Multi-Symptom, 16ct, and it was incredibly effective for managing my symptoms. Within an hour, I noticed significant relief from congestion, cough, and fever, which made it much easier to get through the day. The 12 hour formula really worked as advertised, so I didn't need to take additional doses frequently. I especially appreciated that it tackled multiple symptoms at once, including a sore throat and body aches, which made it a convenient all in one option. I did not experience any unpleasant side effects, which made the overall experience even better. 

Review from Mucinex
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Sep 10, 2026
Reviewer name: LillyG
5 out of 5 stars
5 out of 5 stars review

Go to for cold and fever

[This review was collected as part of a promotion.] Mucinex is my go to for cold and fever. Works so fast and keeps you feeling better for a long time. I love how it has a mix of different ingredients that work on all different aspects of sickness simultaneously. This version specifically lasts a long time so you only have to take a dose every 12 hours.

Review from Mucinex
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Sep 9, 2026
Reviewer name: JuliB
5 out of 5 stars
5 out of 5 stars review

I loved mucinex since day 1, it is my life saver for any type of virus, it works wonderfully well for any kind of illness. It is a must have for the upcoming flu season especially the 12 hours cold and fever Multi-symptom which is a cough suppressant, Exp

[This review was collected as part of a promotion.] I loved mucinex since day 1, it is my life saver for any type of virus, it works wonderfully well for any kind of illness. It is a must have for the upcoming flu season especially the 12 hours cold and fever Multi-symptom which is a cough suppressant, Expectorant, pain reliever and anti-inflammatory. This mucinex melt the mucus which make the recovery way better and faster! The quality of mucinex is extremely high and I always trust this brand!

Review from Mucinex
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Sep 10, 2026
Reviewer name: AmberP
4 out of 5 stars
4 out of 5 stars review

It works!

[This review was collected as part of a promotion.] I feel like every season my family catches a cold or the flu, and I'm constantly searching for a medicine that actually works! Mucinex 12 hr cold and fever multi symptom is that medicine for us. It comes in easy to swallow pills, it's also easy to toss a small square pack into my purse for easy on the go or travel. It says it works for 12hrs and I'm happy to report it does! However, I did notice it took nearly an hour to take affect which is why I left off a star.

Review from Mucinex
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