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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
405 ratings405 reviews
  1. 5 stars85% (345)
  2. 4 stars13% (52)
  3. 3 stars2% (8)
  4. 2 stars0% (0)
  5. 1 star0% (0)

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Showing 1-10 of 405 reviews
Jul 6, 2026
CristelG
5 out of 5 stars review

Last up to 12 hours so you dont have to take medicine throughout the day

[This review was collected as part of a promotion.] I started taking Mucinex 12HR Cold & Fever Multi-Symptom as soon as my cold symptoms started, and it made a huge difference. It helped relieve my cough, loosen the mucus, and reduced my body aches and headache. I also love that it lasts up to 12 hours, so I didn't have to keep taking medicine throughout the day. Definitely a great product to keep on hand during cold and flu season! Highly recommend. 💙

Review from influenster.com
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Jun 23, 2026
ErinH
5 out of 5 stars review

A top-tier cold and fever relief option I would choose again and again, hands down!

[This review was collected as part of a promotion.] I got sick this summer, and this helped me manage my symptoms so I could get back on my feet and handle what I needed to do for work. The tablets were easy to take and swallow, and I appreciated the convenience of 12-hour relief during a busy day. I also like having a multi-symptom option on hand rather than needing to reach for several different products the ingredients were designed to address multiple cold symptoms, and that was so convenient. Based on my experience, I would recommend it for keeping in your medicine cabinet when cold and fever symptoms come up. I did receive this Mucinex 12-hour cold and fever multi-symptom complimentary in exchange for my honest review. I would choose this again and again because it truly works.

Review from influenster.com
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Jul 15, 2026
tessieA
5 out of 5 stars review

Best cold,fever relief

[This review was collected as part of a promotion.] This works great when you have a cold and congested. Loved how it last for 12 hours and works. This will not disappoint if you are all congested,fever,cold. Helped me not be so congested and miserable. The pills are a little big and had to take one at a time, but goes down nicely.

Review from Mucinex
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Jun 28, 2026
AlexM
5 out of 5 stars review

Definitely works wonders

[This review was collected as part of a promotion.] My husband randomly got a cold for a couple days and gave him this medicine and it worked wonders for him. He took 2 tablets every 12 hours and felt better in about 2 days. This bi-layer tablet helped his cough, aches, and fever. It's made to provide 12 hours of relief for congestion, body aches, fever, and headaches. It's nice knowing you can take this 1 tablet and it will help you with multiple symptoms. It doesn't dissolve so you have to swallow it with a drink. He said it doesn't have a bad aftertaste either which also is a huge plus. Overall we are super pleased with this medicine and going to purchase it in the future.

Review from influenster.com
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Jun 28, 2026
CarrieB
5 out of 5 stars review

Cold relief

[This review was collected as part of a promotion.] Mucinex 12 hour cold and flu is my go to when my family gets sick. It has helped with body aches and congestion so much better than others we have tried. It doesn't make you drowsy and it's easy to swallow. I highly recommended this formula for those miserable days when your congested and need relief. It also helps reduce your fever so you can get much needed sleep. Thank you mucinex and influencer for letting me try your awesome product.

Review from influenster.com
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Jun 25, 2026
NicoleT
5 out of 5 stars review

Throw away your old cold medicine

[This review was collected as part of a promotion.] As a family who always use the typical OTC cold medicine that prevented coughing sneezing runny nose blah blah blah I wasn't sure about this Mucinex 12 hour cold and fever multi-symptom tablet. But I have to say the effectiveness of it was great. Without having to consume the horrible smelling and tasting liquid these pills were in my cabinet for easy storage and after just one dose I started feeling better I am excited to have these in my medicine cabinet for myself and my family.

Review from influenster.com
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Jul 15, 2026
karenG
5 out of 5 stars review

excellent choise

[This review was collected as part of a promotion.] if you have the flu or a cold , this Mucinex can be an excellent choice, as it treats several symptoms at once. it help relieve fever headaches, and body aches sotthes a cough, and loosens mucus so it ‘s easier to cough up

Review from Mucinex
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Jul 14, 2026
KalleenM
4 out of 5 stars review

Works well

[This review was collected as part of a promotion.] My teenage daughter had gotten a cold and tried this medicine. She said the pills are a bit large and hard to swallow and the taste was not good at all. The medicine did work at helping her symptoms though. 

Review from Mucinex
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Jun 27, 2026
VictoriaP
3 out of 5 stars review

Worked Okay for me.

[This review was collected as part of a promotion.] This medicine was okay for me. Like that it's a -2 hour relief and i wasn't having to take a million of them. I felt it began to work in a good amount of time. What i didn't like was all my pills were split apart I'm not sure what that was about and by them being extended tablets i was skeptical about if that would be a huge problem. Overall wasn't just a fantastic product worked about as well as any of the others !

Review from influenster.com
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Jun 30, 2026
PamelaO
3 out of 5 stars review

Works welk for coughs

[This review was collected as part of a promotion.] I dislike that it does not have a decongestant so it does nothing for my stuffy nose. It did help with my dry itchy cough which was nice. Also worked well to alleviate my headache that came with the sickness.

Review from influenster.com
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