Top Notch Customer Service. Being a small business owner I understand how important Customer Service is, especially in todays economy. I would like to compliment your CS team for providing a service which is 2nd to none. In the past year I have found it necessary to contact your team with several questions and yes,even one product issue.
Comtrex Cold and Cough Non-Drowsy Â® (as a combination product containing Acetaminophen, Dextromethorphan, Phenylephrine ... Dextromethorphan may cause side effects. ... dizziness; lightheadedness; drowsiness; nervousness; restlessness; nausea; vomiting; stomach pain.
There are a number of different dextromethorphan side effects depending on any other chemicals the DXM might be mixed with. You may notice the following effects associated with DXM use: 1  Dizziness. 2  Feeling faint.  Nausea.