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Poly-Tussin EX Syrup Side Effects

Generic Name: dihydrocodeine / guaifenesin / phenylephrine

Note: This page contains side effects data for the generic drug dihydrocodeine / guaifenesin / phenylephrine. It is possible that some of the dosage forms included below may not apply to the brand name Poly-Tussin EX Syrup.

Applies to dihydrocodeine / guaifenesin / phenylephrine: syrup

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

Constipation; dizziness; drowsiness; excitability; headache; nausea; nervousness or anxiety; tiredness; trouble sleeping; vomiting; weakness.

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

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or other vision changes; confusion; difficulty urinating; fainting; fast, slow, or irregular heartbeat; hallucinations; mental or mood changes; persistent trouble sleeping; seizures; severe dizziness, lightheadedness, or headache; severe drowsiness; shallow or very slow breathing; tremor; uncontrolled muscle movement.

It is possible that some side effects of Poly-Tussin EX Syrup may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

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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