What side effects may I notice from receiving Chlorpheniramine, Dextromethorphan, Phenylephrine?

Side effects that you should report to your doctor or health care professional as soon as possible:
-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-changes in vision
-cold, clammy skin
-feeling faint or lightheaded, falls
-fast or irregular heartbeat
-hallucinations
-high blood pressure
-seizures
-tremors
-trouble passing urine or change in the amount of urine
-unusually weak or tired
-vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-diarrhea
-headache
-loss of appetite
-nervous or restless
-stomach upset, nausea
-trouble sleeping

This list may not describe all possible side effects for Chlorpheniramine, Dextromethorphan, Phenylephrine. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.