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Mucinex User Reviews & Ratings (Page 2)

Mucinex has an average rating of 5.5 out of 10 from a total of 110 reviews on Drugs.com. 54% of reviewers reported a positive experience, while 35% reported a negative experience.

Reviews for Mucinex

  • jimbob...
  • October 15, 2014

For Cough "After all the treatments I had from the doctor, nothing really suppressed the cough, which I have had for years. After taking Mucinex, my cough and the associated Phlegm has almost disappeared. I am a 74 yr old male but my side effects seem to be the opposite to others. i.e. I am doing more sleeping than normal, at any time night or day, but thank heavens for the cessation of cough."

9 / 10
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  • polly...
  • April 11, 2009

For Fibromyalgia "I started this when I was working with a patient on Mucinex therapy. It worked, but I thought it was a fluke, and I stopped taking it. Months later, stiff and unable to get around and work without severe pain in my lower back and neck, stiffness in my hips and knees, and general achiness all over, I decided to give it another shot. I have Crohn's disease which causes fibromyalgia symptoms. Since the Crohn's didn't seem to be negatively affected by the Mucinex, I started on it again last week. No pain in my lower back, still just a bit stiff in my neck. I am so happy that back pain is gone. I can do things again and not hurt. I don't have to be on narcotics and I sleep like a baby. I recommend at least trying it."

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  • Anonymous
  • October 13, 2009

For Bronchitis "First time Mucinex DM user. I like the extended relief because it really does provide extended relief from the severe coughing that is characteristic of bronchial infections. The medication did make me a little drowsy, so some caution is recommended especially if you are not able to take time off to rest. I also recommend drinking lots of fluid too. You may notice that your urine smells like the medication."

9 / 10
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116 Report

Frequently asked questions

  • Anonymous
  • February 15, 2012

For Fibromyalgia "It works. I have not had 100% relief but this is the first 4 consecutive days I have been able to go without some type of pain medicine. Neurontin worked for me as well but it made me sleepy and irritable. I'm taking a good vitamin as well but I attribute this profound relief to Mucinex- 600mg daily."

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99 Report
  • Wildb...
  • October 24, 2011

For Fibromyalgia "I have had severe hip, lower back and leg pain lately, and have had so much pain walking, sleeping and could hardly bend. I made an appointment with my doctor and though I have fibromyalgia, I thought I was really headed for trouble. Then wham - I was hit with a bad cold. I took my hubbie's Mucinex and thought - am I imagining things or did my pain magically subside? I don't know why, but boy what a difference it made! After a second dose, I looked it up and found this post. Going to the doc's tomorrow and will tell him."

9 / 10
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Are you taking this medicine?

  • Anonymous
  • February 3, 2011

For Fibromyalgia "I bought some Mucinex 3 weeks ago for a very bad cough that would not go away. Within a few days my fibromyalgia seemed to be getting better. Places that always had pretty much the same amount of pain seemed less painful and even the more painful ones where hurting less. The pain has continued to decrease and I am starting to feel more energetic. This is the best I have felt in years. It was only after doing research on-line that I found the Mucinex/fibro connection. I only learned that I had fibro last fall and the prescription drugs have too many bad side effects for me to take them though I was afraid I would be forced to someday. The Mucinex has had no side effects and I am feeling better everyday."

10 / 10
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89 Report
  • Ericf...
  • Taken for less than 1 month
  • November 13, 2015

For Cough "One of the best thing for coughs. The Mucinex DX green does a great job of thinning mucus as well as stopping cough. The blue is good for colds and allergies without cough. I prefer the 600 mg tables. For me, they wear off after five hours. Take with a lot of water. The more water the better it works. 16ozs every 90 minutes makes it work the best."

10 / 10
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63 Report

More FAQ

  • Anonymous
  • April 2, 2010

For Bronchitis "I've tried this twice, once for allergy related coughing and bronchitis. For some reason, for me, this medicine always makes me cough more than I need to. It does thin the phlegm and helps make my coughs productive, but when I need to sleep this isn't the medicine I can take at night. I use Robitussin DM for nighttime use."

2 / 10
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91 Report
  • Linda
  • Taken for less than 1 month
  • February 7, 2020

For Cough "At first I thought this was making me worse because of thinning my mucus but I read someone's comment on here who said to drink a lot of water (64 oz) and I tried that and it definitely made a difference. If you don't drink a lot of water with this you are not going to clear out the mucus."

10 / 10
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36 Report
  • OjaiA...
  • Taken for less than 1 month
  • January 28, 2019

For Bronchitis "I have read multiple Scientific studies of Mucinex comparing it to placebo. Scientists claim there was zero benefit from Mucinex. Drug is expensive and does not have any clinical test results they can point to about it’s efficaciousness. You are much better off inhaling steam, drinking plenty of fluids, sleeping with a humidifier, and using some kind of prescription bronchodilator like Flovent to keep your lungs from getting tight. In severe cases, you should probably try prednisone in the form of pills or try a bronchodilator. Over the counter medication is a poor substitute for seeing your doctor and take the medicine that actually works!"

1 / 10
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  • Joy...
  • Taken for 6 months to 1 year
  • April 20, 2015

"For Fibromyalgia: I have been taking two 600 mg tabs per day of the 100% guafenesin Mucinex since June 2014. Previously was on Lyrica (I now have liver damage I think was caused from that and Cymbalta) which really didn't seem to help much. Can't claim to be totally pain free because it appears I have a "weather" body. Whenever a high pressure storm system comes in, my pain levels go up. I am convinced however that guafenesin therapy works. I have seen other websites that say it is only having a placebo effect, but then how do you explain those people who accidentally helped themselves stop fibro pain when they took it for sinus problems? I now have to be very careful what I take due to liver problems and guaf has no side effects... So? :)"

8 / 10
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59 Report
  • Buggin
  • July 29, 2009

For Fibromyalgia "I heard about this treatment from a nurse at the local CVS Pharamacy. I went online and looked up the research done. I've been on it for around 3 months now and it works. I ran out at one point and didn't think much of it and my pain came back. I suggest you try it, it really does help. I use it along with Pure Malic Acid and the two things together gave me my life back."

9 / 10
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83 Report
  • post-...
  • February 24, 2011

For Fibromyalgia "I had severe tendinitis after 5 rounds of high dose chemo, probably as a side-effect of the antibiotic Levaquin. I had my RA factor checked to be sure rheumatoid arthritis hadn't kicked in with the chemo and it was normal. But I was in serious pain. Then I got a cold last week and picked up some Mucinex for the cough. Amazingly the tendinitis has settled way down. I only took Mucinex for 3 days and now, a week later, I am still enjoying the benefit. I am not 100% pain free, but probably 90%."

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76 Report
  • Sickg...
  • June 9, 2013

For Cough "I had runny nose, blocked ears, headache, sore throat with mucus, Its great! I took one pill and saw relief, so 4 hours later I took the second one. Now I am wide awake. It's almost 4 am. Take it earlier."

10 / 10
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64 Report
  • Imsick
  • December 23, 2010

For Bronchitis "Mucinex works great for colds and to help get the nasty stuff up before it takes root in the lungs, but for Bronchitis you will definitely need something much stronger (see a doctor) unless you want to be sick for about 4 weeks."

5 / 10
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72 Report
  • Bobcat
  • Taken for less than 1 month
  • May 16, 2019

For Bronchitis "Have been taking 1200 mg slow release Mucinex (plain guaifenesin) for two weeks and it has helped loosen mucus in my lungs. It does require drinking LOTS of water to be effective. In my case 64 ounces a day. Noticeable difference in breathing and timbre of my voice. All that said, hoping I can stop taking the medicine and simply work on staying hydrated."

8 / 10
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34 Report
  • Aleci...
  • April 20, 2011

For Fibromyalgia "Mucinex made my pain disappear if I took it along with a painkiller but not only that, it made everything better. All of my fibromyalgia symptoms were gone, but that may have been because I was taking Ginseng for energy and ginkgo for fibrofog. I still love Mucinex, it saved my life."

10 / 10
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68 Report
  • Anonymous
  • July 29, 2011

For Fibromyalgia "I have been using Mucinex for 6-9 months for Fibromyalgia and Chronic Cough (20 years). Started with 600mg twice a day for about a month, then I switched to 1200mg twice a day for about 2 months. 1200 was way TOO Much, it made my joints burn with pain and my left leg swelled up. I switched back to 600mg twice a day - still had the pain and swelling - then dropped the dose to 600mg once a day - the swelling went down and the pain was much less. I got very tired -hard to work. All this time the Mucinex worked to control the Fibro and helped me to function and think clearly. I will try an even lower dose of Mucinex. Can't get it over the counter. I've been off the medicine for 2 days with lots of rest. In a few days I'll be back on with a lower dose."

10 / 10
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66 Report
  • Jesus...
  • April 10, 2017

For Bronchitis "I'm not sure mucinex works. I know it kept me wide awake. It was hard for me to sleep. When I was awake, In felt like my balance was off, so I felt dizzy. U couldn't go down spiral steps. I would not recommend it. "

2 / 10
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42 Report
  • Captain...
  • May 15, 2016

For Cough "I was suffering from a severe virus-caused sore throat with terrible coughing. My PCP advised me to take Mucinex but at substantially greater dosage than the package recommends. I did so for about 3-4 weeks. The medication did help relieve my coughing, but it interfered so badly with my sleep that I had to discontinue taking it. I notice that other people have experienced sleep problems with Mucinex. There should be a warning about this on the package label."

6 / 10
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  • Dedee
  • Taken for 1 to 6 months
  • March 11, 2018

For Bronchitis "I read many reviews some positive and some negative. But people need to remember it will work for some and others it won't. In the 80's my allergist prescribed "Guaifenesin" for me. It really was the best for me. Then it was taken off the market for a while. Several months I was looking for something to help me with my congestion and allergies. Found Mucinex and have been using it as needed and I feel great."

10 / 10
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36 Report
  • Bark...
  • Taken for less than 1 month
  • September 28, 2019

For Bronchitis "I have Moderate COPD. Got some kind of Crud (I call it) in my chest and was coughing and so sick. Couldn't cough up any thing but knew it was there. Took regular Mucinex generic label. Felt like I was drowning. Post nasal drip putting fluid in my lungs and I was drowning. Please go to the Dr. if this sounds like you - it turned out I had Community Acquired Pneumonia."

1 / 10
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  • Anonymous
  • Taken for less than 1 month
  • October 23, 2016

For Cough "I had a bad chest infection and even after potent antibiotics took care of the infection I had a rattling cough and low grade fever My doctor Rxd Mucinex and I could not believe how well it broke up the congestion in my chest, made it easier for me to cough it all up As a result I finally got rid of the low grade fever also Finally, Guafenesin has been around forever as a remedy for fibromyalgia"

9 / 10
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  • Crjn
  • Taken for 1 to 6 months
  • October 7, 2019

For Bronchiectasis "Works great for thinning mucus in the lungs. People with bronchiectasis may need to double up the dosage. People with a flair-up may not notice a big change at first as it’s gentle acting. Check with your doctor of course but this is a fairly safe medicine. I use it daily to keep passages clear."

8 / 10
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27 Report
  • Fibro...
  • March 20, 2014

For Fibromyalgia "I had a terrible experience with Mucinex. I followed the protocol for just over 1 month hoping to feel some relief but I felt really heavy, like I had a bad flu, and had worse pain. I think most people are experiencing relief so give it a shot; it just didn't help me."

1 / 10
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48 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.