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Chlorpheniramine / dextromethorphan / guaifenesin / methscopolamine / phenylephrine Side Effects

Applies to chlorpheniramine / dextromethorphan / guaifenesin / methscopolamine / phenylephrine: tablets

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

Blurred vision; dizziness; drowsiness; dry mouth, nose, or throat; excitability or irritability (especially in children); giddiness; headache; lightheadedness; nausea; nervousness; trouble sleeping; unusual tiredness or weakness.

Seek medical attention right away if any of these SEVERE side effects occur while taking chlorpheniramine / dextromethorphan / guaifenesin / methscopolamine / phenylephrine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); fast or irregular heartbeat; flushing; hallucinations; mental or mood changes; seizures severe drowsiness; tremor; vomiting.

Not all side effects for chlorpheniramine / dextromethorphan / guaifenesin / methscopolamine / phenylephrine may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Further information

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.

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