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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 11-20 of 1,357 reviews
Sep 8, 2026
Reviewer name: TravisF
5 out of 5 stars
5 out of 5 stars review

Love the added naproxen

[This review was collected as part of a promotion.] Mucinex 12HR Cold & Flu Multi-Symptom has been a lifesaver when I'm dealing with a bad cold! I love that it helps tackle multiple symptoms at once, so I don't have to take a bunch of different medications throughout the day. It helped with my congestion, cough, and overall cold symptoms, and the 12-hour relief was especially convenient. Definitely something I like to keep on hand during cold and flu season!

Review from Mucinex
Helpful?1RQMQLXT1NBQ6004981466
Sep 3, 2026
Reviewer name: RobC
5 out of 5 stars
5 out of 5 stars review

Cold be gone!

[This review was collected as part of a promotion.] Mucinex is next level when it comes to cold and sinus meds! Their 12 hour cold and fever medicine worked like a charm when I was feeling bad. It alleviates body aches and helped reduce my fever quicker than some other medicines I've taken in the past. This does loosen chest congestion and mucus so you may notice an increase in cough from this. Overall I would recommend to quickly snap out of any cold or fever symptom!

Review from Mucinex
Helpful?1RQMQLXT1NBQ6004981466
Sep 9, 2026
Reviewer name: JessicaB
5 out of 5 stars
5 out of 5 stars review

I can't wait to get a cold!

[This review was collected as part of a promotion.] OK, I have used Mucinex products in the past and they have usually worked pretty good. This is a new product that has just come out and I would really excited to try it the first time I get a cold. The packaging is fairly easy to open, and the pills are dual layered so they give you that extra help that lasts a while instead of just wearing off after about three or four hours. For this to come, especially at the beginning of cold and flu season, this is going to be a godsend. I'm a teacher, so after summer break, my immune system needs to build itself up! This will be great because I can take it in the morning and don't have to take another dose at lunchtime, like usual cold and flu products. 

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

Convenien relief , that lasts for hours

[This review was collected as part of a promotion.] Mucinex is very convenient when dealing with a cold. I like that one dose helps with several symptoms and provides long lasting relief. Tablets are little large, but overall they are easy enough to take.

Review from Mucinex
Helpful?1RQMQLXT1NBQ6004981466
Sep 6, 2026
Reviewer name: MirandaW
5 out of 5 stars
5 out of 5 stars review

Actually long lasting cold support!

[This review was collected as part of a promotion.] This came at the perfect time for us, dealing with a nasty cold our daughter passed on from daycare. My husband especially had a horrible cough and it didn't seem like anything was helping. He found so much relief with this! He was able to actually get some much needed sleep without being woken up by his coughing. We both really like the extended release formula, because often we find cold medicine helps initially but isn't long lasting. He felt like this stayed consistently helpful for 12 hours! We definitely will keep this stocked in our medicine cabinet for the future. :)

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

Quick long lasting

[This review was collected as part of a promotion.] Mucinex 12 HR Cold & Fever Mutli-Symptom is a long-lasting (12 hour) cold medicine that combines pain/fever (naproxen), cough suppressant and expectorant all in one. It works quickly and is great for starting your day for all day relief or at least light for a restful sleep. The size is what you'd expect and the brand is well known and trustworthy. Great for the cold and flu season! Note: I received a free sample for my review.

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

Long Lasting Relief

[This review was collected as part of a promotion.] I received a Free sample of Mucinex 12 Hour Cold & Fever Multi-Symptom compliments of Mucinex & Influenster. I used Mucinex 12 Hour Cold & Fever Multi Symptom to help relieve my cold symptoms, and what better timing! It came in handy right when I needed it and helped me get through those uncomfortable cold symptoms while providing long-lasting relief. I appreciate the fact that it last's 12 hours versus others which was 4 or 8 hours. Overall I'm very happy with my experience.

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

Good product, must try!

[This review was collected as part of a promotion.] Good combination for a chesty cold. The guaifenesin addresses mucus while dextromethorphan reduces the cough relex, so it's particularly logical when you're dealing with phlegm/chest congestion plus frequent coughing. Naproxen instead of acetaminophen. This can be useful if you specifically prefer an NSAID for fever, headache, or body aches. It also means you're not automatically doubling up on acetaminophen if you're taking another acetaminophen-containing medicine.

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

A must for family's

[This review was collected as part of a promotion.] I have used Mucinex for several years now. I love the convenience of just taking a pill you miss out on the nasty taste of liquids. This gave me quick relief for those seasonal sicknesses, especially with two small kids. Our house stay sick. This will be amazing in the winter months. This relieved my headache, my fever, my congestion, and my cough!! 

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

It works.

[This review was collected as part of a promotion.] I'm a very crunchy type of person. But when something works well you always keep it on hand! If I don't have the time to make tea or I can tell I'm getting sick I always keep mucinex in my cabinet. The pills are a little large so keep that in mind. The packaging is pretty easy to open. I tear one square off and always have them with me for if a friend gets sick on a trip or I. I'm a professional ballroom dancer can't afford to be sick during a performance. Gotta take care of your peeps and yourself! Overall nothing beats it!

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Review from Mucinex
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