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User Reviews for Mucinex

Mucinex has an average rating of 5.7 out of 10 from a total of 91 ratings on Drugs.com. 57% of those users who reviewed Mucinex reported a positive effect, while 30% reported a negative effect.

Condition Avg. Rating Reviews Compare
Bronchitis  
5.8
44 reviews 288 medications
Cough  
5.7
43 reviews 797 medications
Bronchiectasis  
3.3
4 reviews 152 medications
Summary of Mucinex reviews 5.7 91 reviews

Reviews may be moderated or edited before publication to correct grammar and spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest in the medication will not be published. As reviews and ratings are subjective and self-reported, this information should not be used as the basis for any statistical analysis or scientific studies.

Reviews for Mucinex

Anonymous · Taken for 2 to 5 years October 4, 2020

For Bronchiectasis: “Mucinex is great. I was taking all kinds of medications for a pulmonary problem. Went to Mayo Clinic for the problem. I have bronchiectasis and was told never take an antihistamine but use mucinex a decongestant. I never looked back. When a doc tells me to take an antihistamine I say no. One time I took an antihistamine and had a problems for 3 months. Never again”

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Renossnowflake · Taken for less than 1 month September 23, 2020

For Bronchitis: “Although Mucinex contains the exact same drugs as Robitussin D it doesn't work nearly as well for me as Robitussin D. Maybe because the Robitussin is a liquid? Mucinex has spent a lot more money on advertising but I would choose Robitussin D every time!”

3 / 10
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Mel2 · Taken for less than 1 month August 20, 2020

For Bronchitis: “I began a cough 4 weeks ago. Then the mucus started. Couldn't get it up. Pharmacy suggested Robitussin which worked ok, but still needed stronger meds. Dr. Put me on steriods and antibiotics. Still mucus choking me. Tried Musinex 600. Nothing. Made me worse. The coughing started and was horrible for about an hour. I stopped using Mucinex went back to Robitussin. This drug is not for everyone. Would not recommend.”

1 / 10
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Frequently asked questions

nascar18 · Taken for less than 1 month November 22, 2013

For Bronchitis: “Mucinex is great and it works well but whatever you do, DO NOT take it on an empty stomach. I did this morning and as the day went by I kept feeling worse and worse. When I finally got the chance to eat something, my stomach was so upset that it just came right back up. Again, its a great medication but eat something before taking it.”

8 / 10
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Poodle Mom · Taken for 1 to 6 months October 5, 2014

For Fibromyalgia: “Unbelievable is all I can say! I could not have doubted this more, but after suffering night after night with horrendous back pain, I sat up at 3am searching the internet for some herb or vitamin I had dismissed the 100 other times I had sat up on the night in pain. I thought it sounded ridiculous, but no more so than anything else I had tried. I started with 1200mg and have remained on that and I feel better than I have in years. I urge you to try this. It has changed my life!”

9 / 10
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robert-sydney February 24, 2012

For Fibromyalgia: “Diagnosed with severe fibromyalgia, mayofascial pain, IBS. Went through nerve studies etc and muscle biopsy. Finally told I had severe fibromyalgia. The problem was that it was progressing every month. I became suicidal due to pain levels, couldn't walk 10 meters. It saves lives. I might not have the fibromyalgia type you have but this medicine saved my life and if you think spending $30 to try it is a waste then it means you did not suffer enough. I lost it all, wife, home, job but a simple flu tablet got me back everything and it even took my eczema, IBS I had for years. God bless those who came up with that theory. Theory might be wrong but it does the job.”

10 / 10
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Nina5621 May 10, 2016

For Bronchitis: “This medicine really helped me out with a bronchitis attack. I have been suffering with acute bronchitis for about 3 weeks now, after taking all of the medication that my doctor prescribed I still have no relief. After reading reviews I decided to give Mucinex (liquid) a try, to my surprise it really helps to bring up all of that sticky mucus that was stuck in my lungs. Although I'm not fully well yet, I can see better days ahead!”

10 / 10
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More FAQ

Stacie Jung June 20, 2013

For Fibromyalgia: “I have been in terrible and increasing pain since last September. I have had hip and spinal X-rays and MRIs and they show slight arthritis and little else. I had an injection of cortisone in my left hip and now the doctor is recommending a shot to my spine. The pain is so bad, that lately I've been reduced to tears. I went from surfing in August to hobbling in September and the doctors treat me like I'm this no activity couch potato who deserves to feel horrible because I'm getting old and I need to lose weight. Sure I do, I've gained 30 pounds in the last year because I can barely walk. Well, I tried Guaifenesin this afternoon because and it made me fall asleep, and when I woke up, THE PAIN WAS GONE!”

10 / 10
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DelvaDoll · Taken for less than 1 month September 2, 2015

For Bronchitis: “It works good, you will feel the congestion breaking down. It does make you cough more to loosen up mucus and yes you probably will stay up a bit a night. I took the pill not liquid. Have to say I was surprised.”

7 / 10
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LivingWithFibro April 18, 2012

For Fibromyalgia: “I was diagnosed at 20 and put on muscle relaxers and pain killers that did nothing more than immobilize me. I read about the guaifenesin treatment and asked my doctor for a prescription. I started at 1200mg extended release 2x daily. FINALLY I had my life back. When Mucinex took away the generic option, I dropped to 600mg 2x daily, and it still does the trick. 12 years later, I still swear by it. I have occasional set backs, but I always bounce back within a week.”

10 / 10
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Melody11728 July 5, 2014

For Fibromyalgia: “With moderate to severe fibromyalgia for 12 years I lost my career and lived in fear of having a life to avoid a flare-up. I have tried every antidepressant, serotonin uptake inhibitor, pain medicine, anti-inflammatory.... you all know, with major side effects that only contributed to fibromyalgia symptoms. March 2014 I got a cold and used Mucinex for the first time and could not believe the relief. I have prayed for someone to invent a NEW MEDICINE for fibromyalgia that would work and it turned out this OLD MEDICINE has returned my life to me. Thank God for Mucinex!”

10 / 10
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komwill September 16, 2014

For Fibromyalgia: “I was sick with sinus infection and was taking Mucinex. I thought to myself, I am going to be extra sore since I am home from work and resting more than usual because I was not feeling well. I was shocked when after taking Mucinex for a few days, my pain was gone. No more tender spots. My arms had been really bad lately and when I touched them, they were no longer sore. I had no idea of the connection at the time. I googled Mucinex and was amazed that I found studies that something for a cold could possibly help with fibromyalgia. I stopped taking it and the symptoms came back so I started taking it again. I take 2-3 400mg a day. I call this experience accidentally on purpose. It may not work for everyone as we're all different but its worth trying.”

9 / 10
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Cheryjoy · Taken for less than 1 month April 12, 2019

For Bronchitis: “I’m a second-grade teacher and have had an exhausting case of bronchitis for four months now. Many of those loveable little petri dishes I teach have been sick too. This week I’m much worse with very painful throat and ear pain and congestion. Went to dr. yesterday feeling like I’ll do anything to get better! So amoxicillin for ear and throat, two shots of I don’t know what in the backside, Mucinex for the thick nasty phlegm, and Flonase, Claritin, and Zyrtec to alternate. Best thing—- the cough is finally actually bringing the stuff up about 6 hours after taking a 12-hour Mucinex. And lots draining out the nose too. I’ve never tried it before but it’s sure working. All that yuk is finally getting out of there!”

10 / 10
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wildbreeze December 20, 2011

For Fibromyalgia: “I posted almost 2 months ago. I've been taking Mucinex since then for the fibromyalgia pain (I am not a creature of habit and have a hard time remembering to take any medication but I don't miss it!) I can sincerely say that it continues to work - progressively better - and I find it hard to believe it myself! Pain in my right shoulder that I've had for over 15 years has quietly disappeared. I no longer sleep with a pillow between my knees, and I have so much less pain bending over, etc. I also don't have to clear my throat constantly in the morning like I did so it works great on mucus too. I really didn't expect the results to continue. If you have pain like me, give it a try. No bad effects. I hope it works for you.”

10 / 10
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gloe September 19, 2014

For Fibromyalgia: “Couldn't believe it could be true but it was. Newly diagnosed with fibromyalgia. I read about Mucinex for fibromyalgia; read that it is a muscle relaxant and enhances the analgesic effect of aspirin and Tylenol; and is enhanced by magnesium. Went out and bought the 800 mg with 2 aspirin and some magnesium citrate, and it worked! The pain just seems to dissolve away. I continue to take 800mg (2, 400mg immediate release tablets) with aspirin and magnesium, three times a day, or 1200 mg twice a day. ”

8 / 10
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AmitPAmin June 15, 2014

For Fibromyalgia: “I've tried dozens of therapies and medicines. Mucinex does better than them all. Since taking it, my pain levels have gone down by 90%. Mucinex doesn't work for everyone. But it's cheap and over the counter. What's the harm in trying? I wish a doctor or website had suggested I try it - would have saved me years of pain.”

10 / 10
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SaraJF · Taken for less than 1 month March 4, 2014

For Bronchitis: “I took Mucinex for a bad case of bronchitis. It worked very well and I was finally able to stop coughing and start breathing again. The only problem was that it interfered with my sleep. I was awake most of the night and was not tired the next day. I had to quit taking it.”

6 / 10
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Grammy · Taken for less than 1 month December 2, 2018

For Bronchitis: “My dry cough turned into a wet (mucous) cough, later diagnosed as bronchitis. I was getting very little sleep, and then saw a commercial about Mucinex DM for coughs which is the guaifenesin and Dextromethorphan. I tried it, one tablet every 12 hours. In that first 12 hours, I got relief enabling me to finally sleep well all night. I had no problem with it affecting my sleep like some others experienced in these reviews, but hey may have taken the one with pseudoephridrine which keeps you awake. What I have noticed is that the cough is suppressed until you get close to the 12-hour period, then the cough begins. But it's productive, and mucous is expelled much easier, and then it's over. Then it's time for another pill. I highly recommend this product for coughs.”

9 / 10
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smoore002 April 15, 2008

For Fibromyalgia: “I never thought that an expectorant used to treat coughs could be this effective for Fibromyalgia pain. I am a pre-med student and when I heard about the possibility of Mucinex(Guaifenesin) being able to relieve pain caused by Fibromyalgia I decided to try it. It has worked better than NSAID'S (Ibuprofen, Aleve, Celebrex) for me. 400mg works great (600mg if using the extended release tablets.)”

9 / 10
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Anonymous October 9, 2011

For Fibromyalgia: “My neurologist has tried me on several medicines, but I work in the OR that the Cymbalta and Lexapro do make the pain manageable but I think all the side effects are with me. Mentally I felt like I was floating. I have done the amitriptyline, Neurontin, Buspar, Ultram, Flexeril. But when I read Mucinex I thought you are kidding me. The next morning I went and got some Maximum Strength 12 hr relief and also tried the liquid but I prefer the tablets. Try it I promise it works. Sounds crazy but it does.”

10 / 10
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VAmom · Taken for less than 1 month February 5, 2020

For Bronchitis: “I get asthma “colds” that turn into Bronchitis once a year. I find Mucinex “keeps the elephant off my chest”. And, you’ll know what that means if you’ve had bronchitis! I will take Mucinex in the morning, and feel fine most of the day, thinking I’m getting past the infection. Then WHAM! Elephant...on...chest!! Cough, cough.... Mucinex may not work for everyone, but it sure helps me breath deeper and easier!!”

10 / 10
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aarsprn November 29, 2011

For Fibromyalgia: “After suffering unbearably for 15 years from Fibromyalgia (including 6 years on disability for it). My neurologist suggested I read everything by Dr. D'Amato and try Mucinex. We tried 600 mg twice a day for 6 weeks, no response, upped the dose to 800 mg twice a day for 4 weeks, a little better, then 1200 mg twice a day and it was a miracle. I slowly regained a life again. Throughout this time I also exercised about 1/2 hour a day, which also helps.”

10 / 10
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JohnSS · Taken for less than 1 month December 29, 2014

For Fibromyalgia: “52 currently, Fibromyalgia began about 16 yrs ago.. Last few years have been really tough, and in discussing at deer camp with friends, one of them mentioned Mucinex. Read up, bought the 600 and raised it to 1200's the next week. My pain is at least reduced by 50%! I'm hearing other supplements in conjunction could help even more but for the moment I'm very pleased to have been told about Mucinex!”

8 / 10
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ERIN....K January 26, 2010

For Fibromyalgia: “I have recently been diagnosed with fibromyalgia. Soon after I had a cold and started taking Mucinex to clear out my sinuses. Not only did my sinuses feel good but I noticed that in general I felt amazing. My body just didn't hurt like it had been hurting for the past few months. So I got online and typed in Mucinex... low and behold the first thing that popped up was using mucinex as a treatment for fibromyalgia ... crazy. I had no idea... so for those of you speculating that it may be a placebo effect ..believe me I felt the difference without knowing that others have used it as a therapy.... it works wonders!”

9 / 10
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Ninasell198 March 20, 2014

For Fibromyalgia: “I also take Mucinex and have since 2003. As I have read the reviews I have not read any mention of having to remove salicylates from all topical products. Been on Guiafenesin for 10 years and has helped me greatly. ”

10 / 10
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pollywannacracker 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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pcworkman · Taken for less than 1 month December 4, 2016

For Bronchitis: “Mucinex worked like a charm for me. When it ran out, I made the mistake of waiting a few days before I went out and got some more!!! Since I have Chronic Bronchitis, I will always have this medicine on hand. I had to see a doctor before taking it, since I am taking other medications, and had to make sure there would not be any dangerous interactions. This medicine is a wonder drug for me. I have now quit smoking, and am using nicotine gum. If your Bronchitis is caused by smoking, you also need to quit. The nicotine gum will keep your nerves calm, and that way you won't have to quit cold turkey. When on the gum, you can take care of the psychological withdrawls, and later take care of the physical withdrawls. Not both at same time.”

10 / 10
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This information is NOT intended to endorse any particular medication. While these reviews might be helpful, they are not a substitute for the expertise, knowledge and judgement of healthcare practitioners.