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ChlorDex GP Side Effects
Generic Name: chlorpheniramine / dextromethorphan / guaifenesin / phenylephrine
Note: This page contains information about the side effects of chlorpheniramine / dextromethorphan / guaifenesin / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name ChlorDex GP.
Applies to chlorpheniramine / dextromethorphan / guaifenesin / phenylephrine: liquid, syrup
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur while taking chlorpheniramine / dextromethorphan / guaifenesin / phenylephrine:
Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; difficulty urinating or inability to urinate; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; loss of coordination; mental or mood changes (eg, depression); seizures; severe dizziness, drowsiness, lightheadedness, or headache; severe dryness of the mouth, nose, or throat; severe or persistent trouble sleeping; shortness of breath; tremor; unusual bruising or bleeding; usual tiredness or weakness; vision problems (eg, double vision, severe or persistent blurred vision).
Not all side effects for ChlorDex GP may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Some side effects may not be reported. You may report them to the FDA.