Poly Hist HC Side Effects

Generic name: hydrocodone / phenylephrine / pyrilamine

Note: This document contains side effect information about hydrocodone / phenylephrine / pyrilamine. Some of the dosage forms listed on this page may not apply to the brand name Poly Hist HC.

Some side effects of Poly Hist HC may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Applies to hydrocodone / phenylephrine / pyrilamine: liquid, 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; itching; 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; severe drowsiness; tremor; trouble sleeping; vision changes.

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