DrugInformer Search

Guaifenesin

Popular Brands: : Mucinex, Guaifenesin, Robitussin, Humibid, Robitussin Dm
Official FDA Reports75,834
Social Media Events1,590
Total Posts3,785
Avg. Review Score3.49/ 5
Active Ingredients
  • Guaifenesin
Approved Uses *

* Extracted from Drug Label

Brands and Other Names
Show more brands
Manufacturers
  • A P J Laboratories Limited
  • Aaron Industries, Inc.
  • Aidarex Pharmaceuticals Llc
  • Alston Garrard & Co
  • American Sales Company
Show more manufacturers

  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Mucinex.

* Extracted from FDA Adverse Event Report

Explanation

The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (FAERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.


The proportion of people completing user reviews who complained about a side effect.

The proportion of social media adverse event complaints for each adverse event type.

The proportion of FAERS (FDA) adverse event complaints for each adverse event type.


Guaifenesin Side Effects

  Social Media
(Online Comments)
FAERS
(Reports Submitted to FDA)
Side Effect On Drug
Label
Overall
Alarm
Reports % of
Reports
Alarm Reports % of
Reports
Alarm

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.


User Voices

The following are comments from users that experienced side effects while taking Guaifenesin

Somnolence

... for that effect, because it will do what it says, and get rid of all of that mucus. Now I no longer feel like I have pnemonia. I wasn't prepared for the side effect of drowsiness . There isn't a warnin...


Source: Mucinex-DM-Exportant-amp-Cough-Suppres...

View full report on Guaifenesin related somnolence

Did the author experience somnolence while taking mucinex?

What is this?

Restlessness

... nasty alergies!" Yeah great advice. Kicked those alergies butt and mine! I recently visited out in the country to see my friend and her cats. So I knew the night was going to be restless at best. But ...


Source: Mucinex-D-Expectorant-and-Nasal-Decong...

View full report on Guaifenesin related restlessness

Did the author experience restlessness while taking mucinex?

What is this?

Dehydration

... have been a quick and tempary repreive from my alergies. But no, this super duper mucus evictor isn't slowing down yet! Now 12 hours, two rolls of tolet paper later, and mild dehydration sitting in I ...


Source: Mucinex-D-Expectorant-and-Nasal-Decong...

View full report on Guaifenesin related dehydration

Did the author experience dehydration while taking mucinex?

What is this?

Tell us about your Experience with Guaifenesin

Thank you for sharing your experience with us!

Share Your Experience

Druginformer Identified Side Effects: None

Posted By sheri in fdb.rxlist.com on May 19, 2015 @ 12:00 am

has done all Doctor said it would...would use again without hesitatio

Druginformer Identified Side Effects: Dizziness, Palpitations, Discomfort, Insomnia

Posted By Anonymous in askapatient.com on May 12, 2015 @ 12:00 am

Side Effects: Dizziness, palpitations, sleeplessness, high energy, less congestion, still sick. I have taken 2 doses of the Mucinex-D. 2 tablets every 12 hours. I may have a lower tolerance...

Druginformer Identified Side Effects: Dizziness, Feeling abnormal, Anxiety, Euphoric mood

Posted By Anonymous in askapatient.com on April 24, 2015 @ 12:00 am

Side Effects: Dizzy, spaced out, anxious Worked for congestion but had me feeling high as a kite

Druginformer Identified Side Effects: Decreased appetite, Headache, Feeling cold, Fatigue, Influenza like illness, Pyrexia

Posted By Anonymous in askapatient.com on April 15, 2015 @ 12:00 am

Side Effects: Flu like symptoms cold fever ache tired headache no appitite dull taste Throw it away now not worth the pai

Druginformer Identified Side Effects: Back pain

Posted By Anonymous in askapatient.com on April 7, 2015 @ 12:00 am

Side Effects: severe lower back pain.It's so bad that I can't stand up straight or walk and it happens after taking just two pills(one first time and second after twelve hours,as specified in directi...

Druginformer Identified Side Effects: Headache, Diarrhoea, Drug effect increased

Posted By unhappy in fdb.rxlist.com on April 4, 2015 @ 12:00 am

12 hours if misery! Non stop coughing up very little mucus explosive diarrhea head ache as it finally wore off thank god it did! Went on a 24 hour chat line at midnight mind you..asked a pharmacist if...

Druginformer Identified Side Effects: None

Posted By Anonymous in fdb.rxlist.com on March 22, 2015 @ 12:00 am

Druginformer Identified Side Effects: Nausea, Cardiovascular disorder, Heart rate abnormal

Posted By Anonymous in askapatient.com on March 14, 2015 @ 12:00 am

Side Effects: Nausea, pounding heartbeat. I'm a heart patient and was told regular Mucinex was ok to take. I took 2 tablets and within an hour I felt very nauseous. After approximately 2 ho...

Druginformer Identified Side Effects: None

Posted By Anonymous in fdb.rxlist.com on February 20, 2015 @ 12:00 am

After having the syrup I was coughing up the mucus and I spit it out.Very useful drug.

Druginformer Identified Side Effects: None

Posted By Anonymous in fdb.rxlist.com on February 12, 2015 @ 12:00 am

This is a total waste of money-I was coming down with a cold-stopped at a pharmacy yesterday-didn't have what I wanted--theraflu-so I wasted my money with this////


Additional Drug Information


* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.