DMax Pediatric Side Effects

Generic Name: carbinoxamine / dextromethorphan / phenylephrine

Note: This page contains information about the side effects of carbinoxamine / dextromethorphan / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name DMax Pediatric.

For the Consumer

Applies to carbinoxamine / dextromethorphan / phenylephrine: drops, syrup

Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor; trouble sleeping; vision changes.

For Healthcare Professionals

Applies to carbinoxamine / dextromethorphan / phenylephrine: oral liquid

Cardiovascular

Cardiovascular side effects have included pallor, arrhythmias and increased heart rate or blood pressure.^[Ref]

Nervous system

Nervous system side effects have included sedation, dizziness, headache, nervousness, convulsions, central nervous system stimulation, hallucinations, tremor, insomnia, and weakness.^[Ref]

Ocular

Ocular side effects have included diplopia.^[Ref]

Respiratory

Respiratory side effects have included respiratory difficulty.^[Ref]

Gastrointestinal

Gastrointestinal side effects have included nausea, vomiting, anorexia, heartburn and diarrhea.^[Ref]

Genitourinary

Genitourinary side effects have included dysuria and polyuria.^[Ref]

Not all side effects for DMax Pediatric may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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