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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 381-390 of 1,357 reviews
Sep 6, 2026
Reviewer name: KimberlyR
5 out of 5 stars
5 out of 5 stars review

Large pills, large impact!!!

[This review was collected as part of a promotion.] When I am not feeling my best and I'm am stuffy and congested, I reach for this trusted brand!!! My family hasbeen using the Mucinex Brand for years!! I am glad for the new formula!! 12 hours cold and fever relief!! The pills are rather large but they help a lot when you are stuff and congested so hurry and swallow them up. It doesn't take long for the Mucinex to kick in and it doesn't make me feel drowsy!!

Review from Mucinex
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Sep 7, 2026
Reviewer name: JackieB
3 out of 5 stars
3 out of 5 stars review

Good medicine but I nèed atronger

[This review was collected as part of a promotion.] Mucinex is good for a cold. This has all the different medicines I normally take when I have a cold However this formula isn't strong enough for the kind of colds I experience.I need more of the dextromethorphan and guaifenesin. For those that have CKD this formula has Naproxen Sodium which can be dangerous for kidneys. I would recommend this for the average person. Those with health problems use with caution. I like the packaging because it states everything in the medicine. Also it is easy to read.

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

Fast/long acting

[This review was collected as part of a promotion.] Provides relief for cold/fever symptoms such as congestion, fever, headache. I found it to be fast acting and gave relief for the full 12 hours. The pills are a little large and not coated, however the medicine is effective so it's an OK trade off.

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

Excellent cold and fever relief

[This review was collected as part of a promotion.] These are a must when you have a cold and a fever. They are to easy to swallow which is a huge plus. They provide relief for 12 hours which is so important when you are sick with a cold. Also, the ability to loosen mucus when you are so congested is just a lifesaver. I love Mucinex products and this one is another great one. I just appreciate how I don't have to take multiple medicines with a cold it is all in one which is so convenient for travel or not be go. These are a must each cold season.

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

Quality Medicine

[This review was collected as part of a promotion.] I always trust Mucinex to deliver when I'm sick, and this is no different! I love that it has two layers, one rapid release and one extended release, so that I can get to work right away and stay working. I hate having to keep track of how often I have to take medicine when I'm sick, so having it last 12 hours is really convenient. I like that it has a nice mix of ingredients to target both fever, congestion, and bodyaches, so it's also a nice all-in-one that way. The one thing I would change is I feel like the tablets are a little large, especially if you're really stuffy or have a sore throat on top of everything. Otherwise, these are great to keep in the medicine cabinet as we head into the colder months.

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

Great clarity on what it treats

[This review was collected as part of a promotion.] This brand always puts together great products. This one covers many symptoms and they are clearly listed on the front. I like the clarity to ensure I take the right medicine. Easy packaging and easy to see how much to take.

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 17, 2026
Reviewer name: MeganT
5 out of 5 stars
5 out of 5 stars review

Mucinex Multi Symptom

[This review was collected as part of a promotion.] Mucinex 12 hour cold and fever multi symptom is a convenient option when you're dealing with a cold all at once. It gives me and my family long lasting relief without having to take multiple different products throughout the day. It has helped with her congestion, cough, fever, and cold symptoms that we have had since school started back. I highly recommend it to families suffering with the same symptoms that are looking for a remedy. That's quick and easy.

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

Convenient 12-Hour Multi-Symptom Relief

[This review was collected as part of a promotion.] I've been really impressed with Mucinex 12 HR Cold & Fever Multi-Symptom. I like that it targets several symptoms at once, including cough, chest congestion, fever, headache, and body aches. The 12-hour formula is especially convenient because I don't have to think about taking medicine every few hours. The bi-layer tablets are fairly large, but they're easy enough to take with a full glass of water. Overall, this is a convenient option to keep on hand during cold and flu season, especially when multiple symptoms hit at the same time.

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

Quick, effective relief

[This review was collected as part of a promotion.] Mucinex is a trusted product in our house, and the 12-hour cold and fever multi-symptom is no exception. It's both reliable and effective, which is huge when you feel like your head feels like an almost over-inflated balloon. The pills are easy to swallow, and the combination of a slow-release side and a fast-release side mean you're going to be feeling relief in no time. These dry up every bit of mucus so you can breathe, and leave you feeling like you can face the world again.

Review from Mucinex
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