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Mucinex User Reviews & Ratings (Page 4)

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

  • Puppy...
  • Taken for less than 1 month
  • May 16, 2016

For Cough "I took this attempting to get rid of a cough and chest congestion. I am a 105lb 30 year old female. I took one pill yesterday and felt a little better. That was a half does so today I tried 2 pills, a full dose. After feeling nauseous for several hours I finally threw up several times and am feeling much better. I will not be taking it again, and would rather allow the congestion to run its course."

5 / 10
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14 Report
  • Jojo
  • Taken for 6 months to 1 year
  • January 13, 2020

For Cough "I use the Mucinex liquid and I think it works great. I had it as a prescription for my last cold and this time I got it myself. I also got Alka Seltzer thinking that would work. After 3 days of feeling like poo I took the Mucinex and slept the best I had in three days. I highly recommend this to anyone. I'm only taking it at night because it does make me sleepy. Other than that I have no problems with this medicine and it's the best thing I've ever taken for colds."

10 / 10
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9 Report
  • Grate...
  • March 4, 2012

For Cough "I was advised by a screening nurse to take Mucinex for a particularly persistent cough with a lot of phelgm. After about a week of taking Mucinex, my cough was slightly better, but I noticed that my endometriosis had subsided! I have been suffering from endometriosis for the past 20 years...tried eveything (Nafarelin, birth control bills, laparoscopic surgery, pregnancy, Lupron depot, ovariohysterectomy) and nothing helped the pain...I felt like my urinary bladder was under constant pressure and the only relief was immediately after urinating, but the pain would immediately return. I saw several urologists and they tried treating me for overactive bladder and interstitial cystitis, but the only definitive diagnosis was endometriosis."

7 / 10
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19 Report

Frequently asked questions

  • Nisey
  • Taken for less than 1 month
  • March 2, 2022

For Bronchitis "First, this not the medicine if you have bronchitis, this condition is the excessive coughing that will make your chest hurt without medicine. Taking Guaifenesin, which is the ingredient that loosens phlegm & makes you cough MORE. Bronchitis does NOT need this kind of help, you are coughing as a result of bronchitis. Taking Guaifenesin will make you cough up bits of lung tissue along with any phlegm. If you phlegm has red in it - STOP taking this stuff & go see a doctor - you may need to go on Antibiotics especially if your bronchitis has not improved after 3 weeks. Take it from me, I waited until 5 weeks & my doc said WHY DIDN'T YOU COME IN SOONER? I said I thought it would go away, but it didn't. Doc said - lucky I came in when I did, cuz if I had gone longer - it may have turned into Rheumatic Fever, which is very dangerous left untreated. Normal phlegm, it's fine for, but if it makes you cough so much you are having your lunch come up - it's too potent, and you need to see a doctor!"

1 / 10
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5 Report
  • Anonymous
  • Taken for 6 months to 1 year
  • October 10, 2017

For Cough "I have taken Mucinex for many years with no ill effects, but during this latest bout with chest congestion, when I took it , each of the three times, I experienced horrible, horrible nightmares. My adult daughter had a similar experience when taking it a few months ago. Was this a new "batch" of ingredients or were alternatives used? I have no idea what might have caused this reaction, but I am very wary of trying it again."

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11 Report

Are you taking this medicine?

  • Choo...
  • October 14, 2017

For Bronchitis "I had tried this product in 2005.... and it was not effective. So I gave it another chance to so call redeem itself. Well, this is definitely not for me, it made me feel worst, I developed a headache"

1 / 10
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11 Report
  • medit...
  • Taken for less than 1 month
  • February 25, 2023

For Fibromyalgia "I was desperate with severe, throbbing pain, especially at night. I was actually envisioning suicide. In suggesting Mucinex to a friend, I happened to discover that guaifenesin has a moderate muscle-relaxing effect, and then I read some of these reviews. I also read a report of a clinical study that found no effect. Long story short, the women in the clinical study took only 600 mg twice daily, whereas most of the reviewers here seemed to have taken twice that amount. I started doing that too, only yesterday, and today my spasms are largely gone. My conclusion, therefore, is that the clinical study didn't use a large enough dosage."

10 / 10
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3 Report

More FAQ

  • old...
  • Taken for 1 to 6 months
  • April 1, 2022

For Bronchitis "I think it is a great medicine for me. Many say yes and no, it depends on the person. I have COPD. It really helps this old guy. If it doesn't work for you don't take simple it as that, don't bash it cause it may very well work for some one else quit. The old guy."

7 / 10
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  • Anony...
  • October 15, 2017

For Cough "Out of a dozen over the counter and homebrew/natural remedies for persistent cough (which lasted well after any other symptoms of the cold virus/mild flu that I experienced a month or more ago) that I tried, Mucinex DM is the only one to give me any real relief from an urge to cough thru the day. I sleep just fine but don't feel anything like post nasal drip, or acid reflux or any obvious culprit. I did go to the clinic that I could afford to, got a shot, an inhaler and an antibiotics script. That worked a bit, for about a week, but when the cough came back, Mucinex did just about the same job. Not a perfect solution by any means but when I compared it to the other brands of things tried it was fine"

8 / 10
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9 Report
  • anon...
  • Taken for less than 1 month
  • September 17, 2022

"Within 12 hours of taking Mucinex sinus ×2 tablets every 4-6 hours nasal airways have cleared no postnatal drip or runny nose more energy less sneezing I thoroughly recommend. Please try and stick to taking ×2 every 4/6 hourly ."

10 / 10
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3 Report
  • TRASH
  • Taken for less than 1 month
  • May 19, 2023

For Cough "If you want “medicine” that is completely useless and doesn’t even remotely do a single thing at all, this is the perfect “medicine” for you! It is WORTHLESS. If you don’t want your symptoms to improve at all, take this worthless excuse for “medicine!” You won’t be disappointed!"

1 / 10
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2 Report
  • tomy
  • Taken for less than 1 month
  • September 23, 2021

"I took this for muscle pain and soreness which is a common off label use recommended by my doctor. While it was pretty effective for relaxing muscles it caused very bad sleeplessness even when taking an Ambien. I had to stop use as insomnia made the muscle pain worse! Catch 22......"

3 / 10
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3 Report
  • Aislynn
  • February 23, 2010

"You'll almost always notice a medicinal smell in your urine when you use the nasal (orange) form of Mucinex. The drug it contains is processed through the kidneys and it doesn't all get metabolized, especially the extended release tablets. It tends to make me a bit woozy as well, but at least I can breathe!"

9 / 10
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10 Report
  • Liz
  • Taken for less than 1 month
  • April 7, 2022

For Cough "I had a cough with a runny nose. I thought it was going into my chest so I took a Mucinex D. It made me cough up whatever little bit was in my chest, but made my sinuses and my head so full of mucous I can’t breathe through my nose. The Mucinex D made me feel much worse. I’m not taking it again."

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  • Mom
  • January 3, 2023

For Bronchitis "Mucinex definitely helped break up the congestion & I started being able to cough up thick mucus. Do not take a suppression if you have chesty cold/bronchitis as it hinders you from getting mucus up & out of you. I drank lots of hot tea with honey & lemon which I believed also helped. I doubled my vitamin C. I'm 60 & until this I hadn’t been ill in over 12 yrs, not even a runny nose."

9 / 10
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1 Report
  • Joody
  • Taken for less than 1 month
  • February 13, 2020

For Cough "The packaging for Mucinex is a horrible nightmare. I could not open the bottle. I did the usual push down and turn knob but it was impossible. My dr suggested this and other drugs and antibiotics but I couldn’t get it open - I am so sick that I took a knife to the lid but it only produced a small slit. So I squeezed the bottle but only got a little out. This is a nightmare and I will never buy this again. Zero time on med as I could not get to it."

1 / 10
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  • Kammm
  • Taken for less than 1 month
  • March 4, 2023

For Cough "Seriously the worst! Slightly numbs my tongue but not my throat. I’ve never tried a cough drop that doesn’t work. I thought because it’s a good brand they’d be great. But it’s awful. Now I’m sick, and snowed in so I can’t go to the store, and stuck with these horrible cough drops!"

1 / 10
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  • Skyle...
  • December 29, 2022

"When I first started using mucinex oval shape pill about seven years ago for cough congestion they worked great. As the years progressed, whenever I had similar symptoms Mucinex worked less and less. I switched to the liquid formula about three years ago with the same results. I am on day three of using Mucinex congestion and cough medicine. I will never that this medicine again because I feel a lot worse after starting it. I can't sleep because of excessive coughing that I didn't originally have. Headache which I rarely get. Nauseated. Not worth it. I'll try home remedies the next time."

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  • Giants...
  • Taken for less than 1 month
  • November 18, 2022

For Bronchitis "The jury is still out, but three days in now (pill form, max strength, 1200 mg) and I'm still coughing up little-to-no mucus. The little bit of mucus that I am expelling I attribute more to the humidifier than to Mucinex."

3 / 10
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  • Anony...
  • May 29, 2011

For Bronchitis "It works great, yet makes urine incredibly stinky. "

10 / 10
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221 Report
  • fibro...
  • Taken for 5 to 10 years
  • May 22, 2013

For Fibromyalgia "I regained my life by following the guaifenesin protocol. You MUST take single ingredient guaifenesin with no added meds in order to be safe!"

10 / 10
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124 Report
  • Anonymous
  • January 6, 2009

For Bronchitis "Loosened the deep chested tightness and made it much easier to cough mucus up and out."

8 / 10
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141 Report
  • viannep
  • Taken for 2 to 5 years
  • August 13, 2012

For Fibromyalgia "This is the only medicine that helped take care of the symptoms I had from Fibromyalgia, with no side effects"

9 / 10
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113 Report
  • Anonymous
  • November 6, 2011

For Bronchitis "My doctor recommend this for me when I had bronchitis. It worked wonders. Now every time I feel that wet cough coming back, I pull this out. "

9 / 10
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113 Report
  • nina
  • May 19, 2014

For Fibromyalgia "I started using 1200mg 2x a day about 5 days ago and it really works. I can't believe it truly works."

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94 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.