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Delsym 12 Hour Cough Relief and Gas: What Users Say

Gas: mentioned by 4 users (9.8%)

Based on user experiences from 41 Delsym 12 Hour Cough Relief reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

diarrhea 29.3%
nausea 17.1%
dizziness 12.2%
gas 9.8%
cough 7.3%
increased heart rate 7.3%

Reviews for Delsym 12 Hour Cough Relief

Showing 4 reviews tagged with "gas". Clear filters to view all 41 reviews.
Commonly mentioned side effects
  • 1Pe...
  • Taken for less than 1 month
  • November 6, 2019

For Cough "I’ve been giving this to my grandson for a few years now. When he got sick, he always seemed to get diarrhea and terrible gastrointestinal issues, and I just equated it to a symptom of whatever bug he had caught. A few days ago, we were on vacation, and he got sick. The coughing started and sinus issues. Then I got it yesterday. I’ve found that as an adult, I have to take the highest dose to quit coughing, so it doesn’t work for more than a couple of hours. On top of constantly coughing, and I can’t take anything else, now we both have gas and constant diarrhea. I am throwing all of it in the garbage in the AM and going to take him to the Dr and get something that will actually work. Bottom line is - the med has big-time side effects, and you only get about 4 hours of relief. I don’t understand why the pharmaceutical companies keep making and selling this. They positively know that it’s causing more issues than relieving."

1 / 10
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12 Report
  • GGa...
  • Taken for less than 1 month
  • April 29, 2018

For Cough "I get bronchitis at least once or twice a year, and this is the only medicine to help my cough. My coughing keeps me up at night, my ribs hurt, and this medicine gives me some relief. I get no gas, nausea, or poops from it! Most medicines do cause those above symptoms listed, and with this, I have none."

10 / 10
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9 Report
  • Dol...
  • Taken for less than 1 month
  • February 13, 2018

For Cough "Avoid taking. I took the required dosage, and after one hour, I had terrible gas pains and diarrhea. Very embarrassing since I am at my office. My cough did stop, but it is not worth it. Also, made me very dizzy and confused and a little panicky. Don't take it with any kind of green tea or caffeine."

2 / 10
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5 Report

Frequently asked questions

  • Ckj...
  • Taken for less than 1 month
  • November 19, 2022

For Cough "Definitely not a 12-hour product. I have to take a full dose every couple of hours. It is apparently the only OTC cough suppressant on the market for dry coughs. It's making me gassy, interfering with my sleep (when I do finally fall asleep, crazy nightmares). A pretty terrible product, but apparently my only option."

1 / 10
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1 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.