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User Reviews for Dextromethorphan / guaifenesin / phenylephrine to treat Cough and Nasal Congestion

Also known as: Mucinex Fast-Max Severe Congestion & Cough, Giltuss, Dexcon-DM, Robitussin Children's Cough & Cold CF, Supress-DX, Deconex DMX, Tusicof, Tussin CF, Desgen, Tusslin, Giltuss Pediatrics, Dexcon-PE, Dacex-DM, Execof ER, Mucinex Children's Congestion & Cough, Mucinex Children's FreeFrom Multi-Symptom Cold & Stuffy Nose, Broncotron Ped, Rompe Pecho CF, Pres Gen Pediatric, Duraphen DM, Nortuss-DE, G-Tusicof, Zotex Pediatric, Tussidex, Broncotron-D, G-Supress DX, Tussi-Pres, G-Tron Ped, Tussi-Pres Pediatric, Pres Gen, GDP-EX, Certuss-D (old formulation), Dynatuss EX, Dacex-PE, Anextuss, Duraphen II DM, Duraphen Forte, G-Phen DM, Despec DM Syrup, Phlemex Forte, Guaphen Forte, Guaphen II DM, Endacon, Robafen CF, DuraMAX, Ambi 40/1000/60, Maxiphen-G DM, Z-tuss DM Deconex DM ExeTuss-DM Mucinex Children's Multi-Symptom Cold VanaTab DM Despec NR Drops Endacon DM Giltuss TR Desgen DM Robitussin Multi-Symptom Cold CF Robitussin Multi-Symptom Cold CF Maximum Strength Mucinex Fast-Max Day Time Severe Congestion & Cough Mucinex Children's Day Time Multi-Symptom Cold Duravent DM Zotex-EX Nivanex DMX …show all brand names

Dextromethorphan / guaifenesin / phenylephrine has an average rating of 5.2 out of 10 from a total of 17 ratings for the treatment of Cough and Nasal Congestion. 41% of reviewers reported a positive effect, while 47% reported a negative effect.

Dextromethorphan/guaifenesin/phenylephrine Rating Summary

5.2/10 average rating

17 ratings from 17 user reviews.

Compare all 219 medications used in the treatment of Cough and Nasal Congestion.

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Reviews for Dextromethorphan / guaifenesin / phenylephrine

Amberlicious · Taken for less than 1 month October 27, 2019

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I took two doses within a four-hour. Of the Mucinex fast Max. I woke up the next morning able to breathe through my nostrils and much of my congestion in my chest was gone. I still had a severely congested nose and chest but it gave me 50% relief of what I had been experiencing for the past two days. I'm not the type of person to take medications unless I very much need to. I was very surprised at how well this medication worked. The simple fact that I am even leaving a review on this medication is to hold firm to how well it works for me and I'm very skeptical when it comes to any type of cold medication. I know there is no cure for the cold but just relief of symptoms and this medication did just that. Highly recommend”

10 / 10
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Tevarado December 22, 2017

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I am quite disappointed in Mucinex Fast Max . Quite expensive and it does not work for me. I started taking it yesterday morning and I am still coughing with massive spurts of coughing. I do not recommend this product especially at the high cost , $17 that I paid for it. It seems to be wasted money and I still am coughing.”

2 / 10
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Girl123 January 1, 2020

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I’m only giving this a high rating because it DID relieve my congestion & non stop coughing. However shortly after, I started having extreme anxiety, feeling like I was jumping out of my skin, and diarrhea. Maybe everyone doesn’t have the same side effects that’s true but this part was awful and would prevent me from taking it again.”

6 / 10
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Lynne · Taken for less than 1 month December 18, 2019

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “Mucinex severe cough and congestion seems to be working great! I haven’t had any problems as others have said, and I would be the one to have nausea and bowel issues!! I’m very pleased with the results!”

10 / 10
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Lawrence · Taken for less than 1 month February 5, 2021

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “4-5 weeks into COVID diagnosis I took Mucinex Fast Max - DM Max for lingering cough. Within 3 days I was rid of my cough. I recommended it to a friend today who’s also left with a bad cough. He’s trying it for first time today. Will keep you posted.”

1 / 10
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VanessaT · Taken for less than 1 month February 5, 2016

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I took two tablets at 9am yesterday, followed by about 5-6 bottles of water. Sure the congestion and cold went away significantly, but I could not sleep til about 430am! I work a 12 hour shift, and had to call out from work. Needless to say, this medicine is going in the garbage. Heart palpitations, anxiety and insomnia!”

1 / 10
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PABurtless · Taken for 10 years or more October 24, 2017

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “Sunday I took Advil because I felt run down, achy body, and runny nose. Today which is Monday October 23, I woke up to runny nose, ear and body ache, swelled and achy throat, breathing issues because I have one lung, run down, and headache. I saw doctor and got prescription of nasal spray. She told me because of the pressure of my nose, that's why my earaches. Also, the drainage of my nose is why my throat hurts. But she felt my pressure points and they were swelled. Wtheck. She said to get Mucinex DM and Advil over the counter. The Mucinex DM Maximum strength 12 hour, extended release 28 pills works GREAT! I've used this and Mucine Sinus max Congest.relief 16 liquid gel in the last few years! This medication is worth spending money on!”

10 / 10
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Nicole52019 · Taken for less than 1 month October 6, 2016

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “Took it an hour ago. Now I'm drowsy but also heart racing and shaky and nauseous ... so 3 more hours of this, and i have to get my kids off the bus. Never again will I take this. Did wonders for my cold but these side effects aren't even worth it....”

1 / 10
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Ty2 February 1, 2018

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I took the syrup version because I had been coughing up mucus in my lungs for about a week. Previously, I took Vicks Nyquil, but after using 24 oz, I thought that was a safer alternative. After 3 hours of taking a 15 mL dosage (the dosage cup was broken - had to use the Nyquil measuring cup which says 15 mL and 30 mL), which is 5 mL less than the recommended dosage, I was getting a fever, had trouble urinating, vomited, and had diarrhea at the same time. I did the same thing last night, but I ended up just not getting any sleep from being nauseous. I wish I had read the warning on the product that said, "do not take if your cough is phlegmy", but you know how it is with medication, the retailers keep it so well packaged that you have to take it home and read the warnings after popping down $20 to purchase it. I am going back to Nyquil for $10 in the future, but will let this cough subside first.”

1 / 10
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Kat · Taken for less than 1 month November 23, 2021

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I've been taking this medication for a few days. It did burn pretty badly and made my stomach a bit crampy, but it worked well for my cough and congestion so I continued on with it despite that. Today I took a dose after not taking any yesterday and immediately my esophagus began burning, then my chest and almost immediate cramping. In succession my chest started to hurt and I got very hot and nauseous. Tried to take a nap and was awoken with vomiting for a few hours. It's now been 5 hours since the dose. The vomiting has stopped, but my stomach is still burning. I would never ever recommend this product for anyone!”

3 / 10
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Roxie.T · Taken for less than 1 month March 5, 2021

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “This medication is phenomenal!!!! Not long after I took it I felt so much better but I had to make sure to stay on a 4-6 hr dose regimen to continue feeling like I could survive this cold.”

10 / 10
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BeCe · Taken for 1 to 6 months February 25, 2020

Deconex DMX (dextromethorphan / guaifenesin / phenylephrine): “Great medicine for cough and cold”

8 / 10
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Annon November 29, 2019

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “Worst product ever. Awful diarrhea, and I mean awful, hours lasting an painful. Instantly nauseas! Do not waste your money”

1 / 10
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Smiley · Taken for less than 1 month December 31, 2019

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “I usually take alka seltzer cold at work yesterday decided to try something different. Guess what I'm up at 12:51 am with diarrhea thats a bummer - never again..”

8 / 10
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LL97 March 16, 2016

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “This medicine works great. I had mild diarreah as a side effect, but my annoying mucus cough was relieved.”

10 / 10
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Tony October 20, 2020

Deconex DMX (dextromethorphan / guaifenesin / phenylephrine): “I will not take this medicine again it gave me a headache that I could not get rid of the pressure was horrible I felt worse after taking it.”

1 / 10
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Sunshine November 3, 2021

Mucinex Fast-Max Severe Congestion & Cough (dextromethorphan / guaifenesin / phenylephrine): “It’s 4:07 a.m. and I’m irritable and wide awake. First dosage was taken at 7 p.m. then a dose at midnight. It has helped my cough, but I’m wide awake and need to sleep.”

5 / 10
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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.

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