Comtrex Severe Cold & Sinus Side Effects

Generic Name: acetaminophen / chlorpheniramine / phenylephrine

Note: This page contains information about the side effects of acetaminophen / chlorpheniramine / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name Comtrex Severe Cold & Sinus.

Not all side effects for Comtrex Severe Cold & Sinus may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Applies to acetaminophen / chlorpheniramine / phenylephrine: effervescent tablets

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

Anxiety; constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; trouble sleeping; upset stomach; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur while taking acetaminophen / chlorpheniramine / 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 or inability to urinate; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; mental or mood changes (eg, nervousness); restlessness; seizures; severe or persistent dizziness, drowsiness, light-headedness, or headache; severe or persistent trouble sleeping; symptoms of liver problems (eg, dark urine, pale stools, persistent loss of appetite, stomach pain, yellowing of the skin or eyes); tremors; unusual bruising or bleeding; unusual tiredness or weakness.

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