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Contac Day and Night Cold and Flu Side Effects

Generic Name: acetaminophen / dextromethorphan / diphenhydramine / pseudoephedrine

Note: This page contains information about the side effects of acetaminophen / dextromethorphan / diphenhydramine / pseudoephedrine. Some of the dosage forms included on this document may not apply to the brand name Contac Day and Night Cold and Flu.

Applies to acetaminophen / dextromethorphan / diphenhydramine / pseudoephedrine: capsules

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.

Seek medical attention right away if any of these SEVERE side effects occur while taking acetaminophen / dextromethorphan / diphenhydramine / pseudoephedrine:

Severe allergic reactions (rash; hives; 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; stomach pain; tremor; trouble sleeping; vision changes; yellowing of skin or eyes.

Not all side effects for Contac Day and Night Cold and Flu 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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