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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 31-40 of 1,357 reviews
Sep 8, 2026
Reviewer name: KatyF
5 out of 5 stars
5 out of 5 stars review

Mucinex is still the best

[This review was collected as part of a promotion.] Works great for my cold symptoms. Especially with chest congestion. The only thing I would say is don't take it at night as it can make sleep difficult. Aside from that, Mucinex is always my go to medicine for a bad cold.

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

"Marvelous Mucinex!"

[This review was collected as part of a promotion.] This "Mucinex - 12-Hr Cold & Fever Multi-Symptom" Medicine is perfect to have in my kitchen medicine cabinet. It's fantastic to have on hand, especially as we get info cold and flu season. I really like how you get 16 tablets that help to alleviate several lousy cold symptoms. So, I would 100% recommend this! Thank you to Mucinex and Influenster!

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 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 15, 2026
Reviewer name: DaisyP
5 out of 5 stars
5 out of 5 stars review

Makes me relief from cold and flu

[This review was collected as part of a promotion.] This medicine gives me relief from fever, headaches, and body pain when I'm feeling under the weather. I can count on it when I have cold and flue like symptoms and it helps me feel comfortable. It's convenient to have this medicine handy during cold and flu season. I would recommend to anyone who deal with cold and flu symptoms.

Review from Mucinex
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Sep 12, 2026
Reviewer name: DavidL
5 out of 5 stars
5 out of 5 stars review

Reliable 12-hour symptom relief that knocks out fever and congestion without needing constant re-dosing.

[This review was collected as part of a promotion.] This is a solid staple to keep in the medicine cabinet for cold season. The 12-hour extended release makes a huge difference—you aren't watching the clock every four hours just to take another dose. It breaks up chest congestion efficiently and handles body aches and fever without causing a massive wave of drowsiness. The tablets are standard Mucinex size, so drink plenty of water with them, but they work fast and hold up throughout the day.

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

Effective and easy to take

[This review was collected as part of a promotion.] This medication covers all the bases! It has a fever reducer and pain reducer. A cough suppressant, and an expectorant. This differs from other cold medication because it includes naproxen, which lasts longer than acetaminophen. I also appreciate that these are extended release. The tablets are small and easy to swallow.

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

Great cold/flu med, be mindful if you have a sensitive stomach/sensitive to NSAIDs.

[This review was collected as part of a promotion.] Ive been feeling a little rundown the last few days….had a feeling I was getting sick…. So when I woke up feeling hot, found i had a 101 fever, I figured it was a good day to try out the new Mucinex. I have used Mucinex for years, it's my go to choice for cold/flu meds. This new formula though has Naproxen in it which I hadnt used before, so was curious to see how it would work…. My fever broke within 20 minutes or so of taking the medicine, and shortly thereafter I noticed that the thick phlegm I had upon waking was greatly improved. I felt so much better after just the single dose…. Mucinex is just so much better than the other cold/flu products on the market. The only downside is I did notice I was a little nauseous and I think it was likely the Naproxen that Im not used to taking. All in all though, I'll take it again as I felt MUCH worse before I took it even with the slight nausea.

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

Cold medicine that actually works

[This review was collected as part of a promotion.] I love you using Mucinex 12-hour cold and fever multi symptom .It's my go-to whenever somebody in my family are sick with the flu. We've been using it for years. It thins the mucus and gets it out when you have to congestion and makes you feel better within hours you're feeling like you're not sick anymore.

Review from Mucinex
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Sep 15, 2026
Reviewer name: KristenE
5 out of 5 stars
5 out of 5 stars review

Make it your go to product

[This review was collected as part of a promotion.] Mucinex sells quality products. My husband came down with a summer cold last week and these helped alleviate the pressure and symptoms. At night he was not drowsy and was able to sleep through the night peacefully.

Review from Mucinex
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