What side effects may I notice from receiving Dextromethorphan, Promethazine?

Side effects that you should report to your care team as soon as possible:
-Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
-CNS depression—slow or shallow breathing, shortness of breath, feeling faint, dizziness, confusion, trouble staying awake
-High fever, stiff muscles, increased sweating, fast or irregular heartbeat, and confusion, which may be signs of neuroleptic malignant syndrome
-Infection—fever, chills, cough, or sore throat
-Sudden eye pain or change in vision such as blurry vision, seeing halos around lights, vision loss
-Trouble passing urine
-Uncontrolled and repetitive body movements, muscle stiffness or spasms, tremors or shaking, loss of balance or coordination, restlessness, shuffling walk, which may be signs of extrapyramidal symptoms (EPS)
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
-Confusion
-Constipation
-Dizziness
-Drowsiness
-Dry mouth
-Fatigue

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