Dextromethorphan / guaifenesin / phenylephrine for Cough and Nasal Congestion User Reviews
Brand names: Dexcon-DM, Giltuss, Deconex DMX, Tussidex, Tusicof, Pres Gen, Mucinex Children's Multi-Symptom Cold, Robitussin Multi-Symptom Cold CF, GDP-EX, Dexcon-PE, Desgen DM, Robitussin Children's Cough & Cold CF, Mucinex Children's Congestion & Cough, Mucinex Children's FreeFrom Multi-Symptom Cold & Stuffy Nose, Broncotron Ped, Rompe Pecho CF, Mucinex Fast-Max Severe Congestion & Cough, Pres Gen Pediatric, Duraphen DM, Nortuss-DE, G-Tusicof, Zotex Pediatric, Broncotron-D, Supress-DX, G-Supress DX, Tussi-Pres, G-Tron Ped, Tussi-Pres Pediatric, Giltuss Pediatrics, Certuss-D (old formulation), Dynatuss EX, Dacex-PE, Anextuss, Dacex-DM, Duraphen II DM, Duraphen Forte, G-Phen DM, Despec DM Syrup, Phlemex Forte, Guaphen Forte, Guaphen II DM, Endacon, Robafen CF, DuraMAX, Execof ER, Ambi 40/1000/60, Maxiphen-G DM, Z-tuss DM, Deconex DM, ExeTuss-DM VanaTab DM Despec NR Drops Endacon DM Giltuss TR Tussin CF Desgen Tusslin Robitussin Multi-Symptom Cold CF Maximum Strength Mucinex Fast-Max Day Time Severe Congestion & Cough Mucinex Children's Day Time Multi-Symptom Cold Giltuss Cough & Cold Giltuss Children's Cough & Cold Duravent DM Zotex-EX Nivanex DMX …show all brand names
Reviews for Dextromethorphan / guaifenesin / phenylephrine
- Tev...
- December 22, 2017
"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."
- Gir...
- January 1, 2020
"I’m only giving this a high rating because it did relieve my congestion and 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."
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- Van...
- Taken for less than 1 month
- February 5, 2016
"I took two tablets at 9 am yesterday, followed by about 5-6 bottles of water. Sure, the congestion and cold went away significantly, but I could not sleep 'til about 4:30 am! 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!"
- Lyn...
- Taken for less than 1 month
- December 18, 2019
"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!"
Are you taking this medicine?
Your review helps others make informed decisions.- Nic...
- Taken for less than 1 month
- October 6, 2016
"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...."
- PAB...
- Taken for 10 years or more
- October 24, 2017
"Sunday, I took Advil because I felt run down, achy body, and runny nose. Today, which is Monday, October 23, I woke up to a runny nose, ear and body ache, swollen and achy throat, breathing issues because I have one lung, run down, and headache. I saw the doctor and got a prescription for nasal spray. She told me that, because of the pressure in my nose, that's why I have earaches. Also, the drainage from my nose is why my throat hurts. But she felt my pressure points, and they were swollen. 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 Mucinex Sinus Max Congestion Relief 16 liquid gel in the last few years! This medication is worth spending money on!"
- Kat...
- Taken for less than 1 month
- November 23, 2021
"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!"
- Sta...
- Taken for less than 1 month
- July 24, 2023
"Just got home from a 35-hour flight from Asia, and had the worst case of congestion. Purchased decongestion medicine at the airport overseas and experienced anxiety and labored breathing on the flight. I had to pray I would make it home alive. I didn't want to go through that feeling again, so I researched the best decongestant for sinus pressure and came across Mucinex. I read the reviews of others who have used it, only a few experienced anxiety, which made me really nervous to use it. I took one tablet of Mucinex Sinus-Max just to gauge the effects of the medicine. In 2 hours, I felt like a brick had be lifted off my chest and I could breathe again. I did experience some dryness in my nasal cavity, but after a nice hot shower, I am feeling normal again."
- Law...
- Taken for less than 1 month
- February 5, 2021
"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 the first time today. Will keep you posted."
- Nan...
- Taken for less than 1 month
- December 4, 2021
"Not only did this liquid do nothing for my cough and congestion, the dosing cup is dark blue and it’s impossible to read the line. It’s also square. Did you ever drink out of a square glass? The liquid dribbles out of the corners! Such a poor design. Robitussin is less expensive and works better."
- Ty2...
- February 1, 2018
"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."
- Rox...
- Taken for less than 1 month
- March 5, 2021
"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."
- LL9...
- March 16, 2016
"This medicine works great. I had mild diarrhea as a side effect, but my annoying mucus cough was relieved."
- SJH...
- Taken for less than 1 month
- July 10, 2022
"Worked alright for relieving some sinus congestion, but did have an effect on my plugged-up ear. However, the anxiety is awful and pretty severe. For this reason, I will not use again. NOT WORTH IT."
- Ton...
- October 20, 2020
"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."
- BeC...
- Taken for 1 to 6 months
- February 25, 2020
"Great medicine for cough and cold."
- Smi...
- Taken for less than 1 month
- December 31, 2019
"I usually take Alka-Seltzer Cold at work. Yesterday, I decided to try something different. Guess what, I'm up at 12:51 am with diarrhea. That's a bummer - never again."
- Ann...
- November 29, 2019
"Worst product ever. Awful diarrhea, and I mean awful, hours lasting and painful. Instantly nauseous! Do not waste your money."
- Jen...
- Taken for less than 1 month
- January 3, 2022
"Took this medicine for congestion in nasal. Does not work for that. Disappointed in this product."
- Sun...
- November 3, 2021
"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."
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Giltuss, Deconex DMX, Tussidex, Tusicof, ... +24 more
"I took two doses within four hours 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 from 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."