Acetaminophen/Dextromethorphan Side Effects

Please note - some side effects for Acetaminophen/Dextromethorphan may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Acetaminophen/Dextromethorphan - for the Consumer

Acetaminophen/Dextromethorphan/Pseudoephedrine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Phenylephrine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Phenylephrine:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Doxylamine/Pseudoephedrine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Doxylamine/Pseudoephedrine:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

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.

Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine: Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine; difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Doxylamine

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Doxylamine:

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; stomach pain; tremor; trouble sleeping; vision changes; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Pseudoephedrine Capsules

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine Capsules:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine Capsules

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine Capsules:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Pseudoephedrine Chewable Tablets

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine Chewable Tablets:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Phenylephrine Drops

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Phenylephrine Drops:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Pseudoephedrine Drops

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine Drops:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Phenylephrine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Phenylephrine Liquid:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine or pale stools; difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; severe or persistent loss of appetite; severe or persistent nervousness, restlessness, or trouble sleeping; tremor; stomach pain; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Pseudoephedrine Liquid:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Pseudoephedrine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine Liquid:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Doxylamine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Doxylamine Liquid:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

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.

Acetaminophen/Dextromethorphan/Doxylamine/Pseudoephedrine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Doxylamine/Pseudoephedrine Liquid:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

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.

Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine Liquid

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine Liquid: Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Guaifenesin/Phenylephrine Liquid:

Dizziness; drowsiness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine; difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan/Pseudoephedrine Powder Packet

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Pseudoephedrine Powder Packet:

Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of skin or eyes.

Acetaminophen/Dextromethorphan Syrup

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan Syrup:

Dizziness; drowsiness; nausea.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine; severe or persistent stomach pain; severe or persistent tiredness; yellowing of the skin or eyes.

Acetaminophen/Dextromethorphan/Phenylephrine/Pyrilamine Syrup

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Acetaminophen/Dextromethorphan/Phenylephrine/Pyrilamine Syrup:

Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

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.

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