Delsym 12 Hour Cough Relief and Dizziness: What Users Say

• Emm...
• Taken for 1 to 6 months
• May 25, 2019

For Cough "I have taken Delsym ever since I was young (for colds). I have asthma, so a cold isn’t just a cold for me, but every time I have taken it has resulted in nausea, vomiting, extreme dizziness, fast heartbeat, and shakiness for about 2 days. I later learned that the ingredient called dextromethorphan was causing this. Anytime I take anything with this, it happens. Idk if I’m sensitive to it or allergic."

• LD9...
• Taken for less than 1 month
• June 15, 2018

For Cough "Delsym 12-hour cough medicine should be avoided at all costs. I wish I had never taken it. At first, it seemed to work, but then came the diarrhea, nausea, and dizziness. I had trouble sleeping while taking this product. After 2 doses, it triggered a histamine reaction as well. Before taking this product, my only ailment was a lingering cough from having a cold. After taking Delsym, I'm still dealing with the cough, but now I also have diarrhea, and all the symptoms that come with full-blown allergies. I can't wait until my body completely purges this horrible product from my system."

• 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."

• dec...
• Taken for less than 1 month
• January 29, 2022

For Cough "I do not recommend the use of Delsym 12 Hour Cough Relief. It was recommended to me by a pharmacist to help with a COVID cough. I have high blood pressure, and according to the pharmacist, this would raise BP. At 11:00 pm (bedtime), I took the prescribed dosage. At 1:30 am, I awoke with severe nausea, stomach cramps, dizziness. A few minutes later, diarrhea with numerous trips throughout the night. I sipped on water and tried soda crackers to help with nausea. My blood pressure was 200/100. For 12 hours, I was extremely ill. The next day, I went to urgent care. The diagnosis was side effects from Delsym 12 Hour. I believe this drug should come with warnings of these side effects and be removed as an over-the-counter drug."

• diz...
• Taken for less than 1 month
• November 29, 2022

For Cough "This stuff made me feel very stoned. I felt like hell trying to get through the workday. I definitely wouldn't have taken it if I knew this would have made me feel this way. Lethargic, dizzy, stupid."