Mucinex D and Insomnia: What Users Say (Page 3)

• Anonymous
• January 26, 2009

For Cough and Nasal Congestion "This medicine worked to relieve my nasal congestion, but it gave me severe insomnia. I stayed up for an entire night. I also experienced dry mouth."

• Pam...
• July 16, 2014

For Cough and Nasal Congestion "It works, but it's the pseudoephedrine that keeps you awake all night, tossing and turning, and I had that for about three days. I was physically exhausted but wide awake."

• Moi...
• January 10, 2015

For Cough and Nasal Congestion "Helped somewhat with congestion, but I could not continue to take it due to insomnia (even after taking it during the day), jitters, dizziness, and anxiety."

• Kd0...
• Taken for less than 1 month
• May 6, 2013

For Cough and Nasal Congestion "Very effective at relieving symptoms, but my husband and I both are experiencing insomnia and some anxiety with it."

• Awa...
• November 27, 2013

For Cough and Nasal Congestion "Thankfully, I am no longer coughing, but after taking it at 11 pm and waking up at 2 am and not being able to go back to sleep, I'm wishing that I had read the reviews first."

• TT7...
• March 20, 2015

For Cough and Nasal Congestion "It definitely kept me awake. It helped with the cough, but no matter what I did, I could not get to sleep."

• Anonymous
• October 14, 2012

For Cough and Nasal Congestion "Definitely helped to reduce my congestion. I took it at 7 PM and literally did not sleep at all that night. Had I known that this would happen, I would not have taken it in the evening."

• Anonymous
• July 31, 2012

For Cough and Nasal Congestion "My nasal congestion hasn't gotten any better, I've experienced no relief. However, I am writing this at 4 in the morning, so this medicine gave me both insomnia and shakiness/jitteriness."

• NO ...
• Taken for less than 1 month
• September 28, 2017

For Cough and Nasal Congestion "It literally kept me up from 9 PM until 9 AM. I couldn't sleep at all."

• Raj...
• January 29, 2013

For Cough and Nasal Congestion "Mucinex D is great. I have never had any insomnia or side effects from it. I follow the recommended dosage, which is one pill every 12 hours. I recommend this for everyone to try."

• Anonymous
• January 4, 2012

For Cough and Nasal Congestion "Definitely works great for my sinus congestion, but, like others, experienced insomnia and dry mouth. Took one pill at 6:00 in the evening. Probably better to take in the morning."

• Thi...
• March 12, 2015

For Cough and Nasal Congestion "I took Mucinex D 7 hours ago, and I can't sleep, and my sinuses didn't clear up a bit."

• sle...
• December 4, 2009

For Cough and Nasal Congestion "I am 235 lbs and took one at noon, and by 1:00 PM I was feeling great! I did not take another but still could not sleep that night, nor could my wife, who took one also. Almost a fair trade."

• Man...
• February 3, 2011

For Cough and Nasal Congestion "Works very well with clearing up my nasal congestion, but I took it at night, and I am sleepless and jittery."

• Jen...
• Taken for less than 1 month
• September 22, 2021

For Cough and Nasal Congestion "I never take that medicine again! I did not sleep and I thought I was going crazy."