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User Reviews for Mucinex DM

Mucinex DM has an average rating of 4.6 out of 10 from a total of 17 ratings on Drugs.com. 31% of reviewers reported a positive experience, while 50% reported a negative experience.

Condition Avg. Rating Reviews Compare
Cough  
4.8
11 reviews 811 medications
Expectoration  
4.2
6 reviews 170 medications
Summary of Mucinex DM reviews 4.6 17 reviews

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.

Reviews for Mucinex DM

Jon · Taken for less than 1 month · February 21, 2022

“Guy on here said it made his heart race which made him use his inhaler?..Asthma inhalers can make you jittery so you literally did the opposite of what you should have done. Another person said something about a flu shot and them telling him the flu symptoms were not related? Come on..the vaccine is a weakened version of the flu so of course it cause flu symptoms. I wouldn't expect it to do much in that situation but usually when experiencing coughing at night the suppressant is good and with congested sinuses during the day the expectorant is good. check for possible interactions with other meds, hydrate PLENTY, dont just start by taking the highest recommended dosage, this is not a cure for covid or other viruses but can help clear out phlegm. Definitely not for everyone but works for most.”

7 / 10
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susie · May 1, 2013

For Cough: “Took Mucinex at 5 in the afternoon. Around 8 took my night meds, Next morning stumbling around, Body felt like it was flooded with heat-chest and arm pains. Had myself checked out and was ok. Pulled up website to get complete list of medicines not to take it with and found my answer there. If you have access to the internet I would put the OTC medicine in and get a complete list of what not to take it with.”

5 / 10
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HK · Taken for less than 1 month · March 29, 2018

For Expectoration: “I wasn't feeling well and it was recommended that I try Musinex DM. I took one 12hr pill and started to feel better or so I thought. Half through the 12hr dose I started to have blurry vision and I could feel something covering my eye. I went to look at my eye and I had green mucus coming out of it. First it was one eye, then it was both. I thought I might have conjunctivitis (pink eye) but once I stopped taking the Musinex DM the issue went away. I will never again take this product. Just doesn't work for everyone.”

2 / 10
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CJ · Taken for less than 1 month · December 2, 2020

For Expectoration: “215 lb. male with headcold / chestcold and extreme congestion. Only used Mucinex for two days during daytime with lots of H2O. Broke all congestion loose resulting in sinus drainage and productive cough. Great stuff. Made me feel kind of "buzzy". I would not recommend mixing with other meds (e.g., Nyquil). This would likely cause adverse reactions. Very important to over hydrate when taking!”

9 / 10
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129393939399393 · November 5, 2014

For Cough: “Medicine works very well for the specified 12 hours but wow it is very strong. I weigh 105 pounds and taking an entire pill will have me falling over and seeing double very shakey also but giving it a seven because at least I can breathe now and this is the only medication that works for that my inhaler won't even help me any more.”

7 / 10
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Mariayoani · Taken for less than 1 month · December 9, 2013

For Cough: “Am nursing to 7 months old baby. Had bad sore throat, congested nose. Took Mucinex DM only 4 doses & it worked well. No side effects on baby. I like it & recommend it. 1st dose made my eyes watery but then everything went okay.”

9 / 10
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Bad reaction · Taken for less than 1 month · January 27, 2022

For Cough: “(51F) I took two pills of MucinexDM for Covid symptoms, and it didn’t touch my cough or congestion. But, my eyes swelled shut and started leaking copious amounts of green goo, and my pulse was over 100 even at rest. Not a good first experience!”

1 / 10
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Frequently asked questions

Asthma316 · Taken for less than 1 month · September 21, 2016

For Cough: “Took mucinex md for the onset of cough. The musimex the first day I noticed an improvement but had slight troubled sleeping. The second day no improve the from the mucinex and zero sleep. In combination with my other asthma meds it made my heart race which made me have to take rescue inhaler. I recommend going to dr before taking this with asthma patients.”

3 / 10
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curt · October 12, 2019

For Cough: “I had flu symptoms after a flu shot. They came on immediately but the pharmacist at Walgreens said that the connection was impossible and recommended Mucinex. It does absolutely nothing to relieve the cough, runny nose or anything. She said that the Nyquil I intended to buy wouldn't work. No more Walgeens or Mucinex for me.”

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Sasha · Taken for less than 1 month · November 1, 2019

For Expectoration: “While taking Mucinex DM 600mg, twice a day for 7 days, I hadn't realized why I was itching something fierce. Until my 7th day when I looked up the side effects. Absolutely nothing helped to ease the itch all over but scratching. Other than that, my congestion has eased significantly.”

8 / 10
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Ms Jae · Taken for less than 1 month · January 2, 2022

For Cough: “Had chest congestion, stuffy nose and sore throat the instructions recommended 1 or 2 tablets it worked very well. However I'm spitting aqua blue/green saliva??? can't find any reference in my research indicating this being one of the side effects ...”

10 / 10
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Jackie · October 6, 2019

For Cough: “The directions say take 1 or 2 pills every 12 hours. I took 2 pills and landed in the ER. Very strong meds!”

2 / 10
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Larry · Taken for less than 1 month · April 19, 2021

For Expectoration: “Had very bad anxiety during the whole night. Was confused. Heart rate was very high. Palpation was abnormal. Chest tightness. Can not sleep. Stomach upset.”

1 / 10
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kacik1223 · January 9, 2016

For Expectoration: “Horrible side effects. Felt like I was having an anxiety attack”

1 / 10
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Cece · October 20, 2019

For Cough: “All this pill does for me is make me really lightheaded and Numb all day. I’m never taking Mucinex Dm ever again.”

1 / 10
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Anonymous · Taken for less than 1 month · February 28, 2015

For Cough: “this medicine definitely reduced congestion in my nose. I had not been able to breathe out of the right nostril for several days.”

9 / 10
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Cyndgirl · Taken for less than 1 month · December 25, 2021

For Cough: “Muncinex DX did not work for my son and I. Instead of controlling our cough, we coughed for hours. It did not loosen our mucus as stated on the box. I would not recommend this product.”

1 / 10
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Anonymous · Taken for less than 1 month · July 19, 2016

For Expectoration: “Inflames BPH prostate enlargement,raises blood pressure about 20%”

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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.