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.
Side effects can be serious if very large doses of the combined preparations are ingested; for example, guaifenesin and dextromethorphan can cause severe nausea and vomiting; chlorpheniramine and dextromethorphan can cause seizure, loss of consciousness and bleeding.