Dextromethorphan Side Effects

Brand Names: Delsym, ElixSure Cough, Robitussin Maximum Strength, Triaminic Long Acting Cough, Tussin Pediatric

Please note - some side effects for Dextromethorphan may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Side Effects of Dextromethorphan - for the Consumer

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 Dextromethorphan/Guaifenesin/Pseudoephedrine:

Diarrhea; dizziness; drowsiness; excitability; headache; irritability; nausea; stomach upset; trouble sleeping.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Pseudoephedrine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast, slow, or irregular heartbeat; fever; hallucinations; mental or mood changes (eg, anxiety, nervousness); paleness; seizures; severe or persistent dizziness, lightheadedness, or headache; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

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 Dextromethorphan/Doxylamine:

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 when using Dextromethorphan/Doxylamine:

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.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin

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 Dextromethorphan/Guaifenesin:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Potassium Guaiacolsulfonate

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 Dextromethorphan/Potassium Guaiacolsulfonate:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Potassium Guaiacolsulfonate:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan

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 Dextromethorphan:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Chlorpheniramine/Methscopolamine

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 Dextromethorphan/Chlorpheniramine/Methscopolamine:

Blurred vision; change in appetite; constipation; dizziness; drowsiness; dry mouth, nose, or throat; excitability (especially in children); headache; lightheadedness; nausea; nervousness; restlessness; stomach upset or pain; tiredness; trouble sleeping; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Chlorpheniramine/Methscopolamine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; difficulty swallowing; difficulty urinating; fast, slow, or irregular heartbeat; flushing; hallucinations; increased irritability or excitability; memory problems; seizures; severe clumsiness; severe dizziness, drowsiness, headache, or lightheadedness; sore throat; unusual tiredness or weakness; vision changes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Quinidine

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 Dextromethorphan/Quinidine:

Cough; diarrhea; dizziness; drowsiness; gas; mild stomach pain; nausea; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Quinidine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; dark, tarry, or bloody stools; dark urine; difficult, increased, or painful urination; discoloration of the skin; fainting; fast, slow, or irregular heartbeat; fever or chills; flu-like symptoms; headache; hearing changes or loss of hearing; joint pain; loss of appetite; loss of consciousness; mood or mental changes (eg, depression, nervousness); muscle spasms; pale stools; restlessness; rigid muscles; ringing in ears; severe or persistent dizziness, drowsiness, or lightheadedness; severe or persistent nausea, vomiting, or stomach pain; shortness of breath; swelling of the hands, ankles, or feet; unusual bleeding or bruising; vision changes (eg, blurred vision, double vision); weakness; yellowing of the skin or eyes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan 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 Dextromethorphan Chewable Tablets:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Chewable Tablets:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Phenylephrine/Pyrilamine 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 Dextromethorphan/Phenylephrine/Pyrilamine Chewable Tablets:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Phenylephrine/Pyrilamine Chewable Tablets:

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; tremor; trouble sleeping; vision changes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch .

Dextromethorphan/Guaifenesin/Phenylephrine Controlled-Release and Sustained-Release 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 Dextromethorphan/Guaifenesin/Phenylephrine Controlled-Release and Sustained-Release Tablets:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Phenylephrine Controlled-Release and Sustained-Release Tablets:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/Pseudoephedrine Controlled-Release and Sustained-Release 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 Dextromethorphan/Guaifenesin/Pseudoephedrine Controlled-Release and Sustained-Release Tablets:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Pseudoephedrine Controlled-Release and Sustained-Release Tablets:

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; fever; hallucinations; mental or mood changes; seizures; severe dizziness, lightheadedness, or headache; tremor; unusually pale skin.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/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 Dextromethorphan/Guaifenesin/Phenylephrine Drops:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Phenylephrine Drops:

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; tremor.

Dextromethorphan 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 Dextromethorphan Drops:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Drops:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

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 Dextromethorphan/Phenylephrine Drops:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Phenylephrine Drops:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/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 Dextromethorphan/Guaifenesin/Pseudoephedrine Drops:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Pseudoephedrine Drops:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin Elixir

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 Dextromethorphan/Guaifenesin Elixir:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin Elixir:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Polistirex Extended-Release 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 Dextromethorphan Polistirex Extended-Release Liquid:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Polistirex Extended-Release Liquid:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Polistirex/Guaifenesin Extended-Release 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 Dextromethorphan Polistirex/Guaifenesin Extended-Release Liquid:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Polistirex/Guaifenesin Extended-Release Liquid:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin Extended-Release 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 Dextromethorphan/Guaifenesin Extended-Release Tablets:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin Extended-Release Tablets:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Freezer Pops

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 Dextromethorphan Freezer Pops:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Freezer Pops:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Gel 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 Dextromethorphan Gel Syrup:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Gel Syrup:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin Granule Packets

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 Dextromethorphan/Guaifenesin Granule Packets:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin Granule Packets:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan 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 Dextromethorphan Liquid:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Liquid:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

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 Dextromethorphan/Guaifenesin/Pseudoephedrine Liquid:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Pseudoephedrine Liquid:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

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 Dextromethorphan/Guaifenesin/Phenylephrine Liquid:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Phenylephrine Liquid:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Acetaminophen/Diphenhydramine 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 Dextromethorphan/Acetaminophen/Diphenhydramine Liquid:

Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability (especially in children); headache; loss of appetite; nausea; nervousness or anxiety; upset stomach; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Acetaminophen/Diphenhydramine Liquid:

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 or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, drowsiness, lightheadedness, or headache; severe or persistent loss of appetite; stomach pain; tremor; trouble sleeping; unusual fatigue; vision changes; yellowing of the skin or eyes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Lozenges

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 Dextromethorphan Lozenges:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Lozenges:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan Orally Disintegrating Strips

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 Dextromethorphan Orally Disintegrating Strips:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan Orally Disintegrating Strips:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Phenylephrine Orally Disintegrating Strips

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 Dextromethorphan/Phenylephrine Orally Disintegrating Strips:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Phenylephrine Orally Disintegrating Strips:

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; severe or persistent nervousness, restlessness, or trouble sleeping; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Pheniramine/Phenylephrine Powder Packets

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 Dextromethorphan/Pheniramine/Phenylephrine Powder Packets:

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 when using Dextromethorphan/Pheniramine/Phenylephrine Powder Packets:

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 or persistent nervousness, restlessness, or trouble sleeping; tremor; vision changes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Phenylephrine/Pyrilamine Suspension

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 Dextromethorphan/Phenylephrine/Pyrilamine Suspension:

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 when using Dextromethorphan/Phenylephrine/Pyrilamine Suspension:

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; tremor; trouble sleeping; vision changes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/Pseudoephedrine Suspension

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 Dextromethorphan/Guaifenesin/Pseudoephedrine Suspension:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Pseudoephedrine Suspension:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin Suspension

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 Dextromethorphan/Guaifenesin Suspension:

Dizziness; drowsiness; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin Suspension:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/Phenylephrine Suspension

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 Dextromethorphan/Guaifenesin/Phenylephrine Suspension:

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

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Phenylephrine Suspension:

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; tremor.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Guaifenesin/Potassium Guaiacolsulfonate Sustained-Release 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 Dextromethorphan/Guaifenesin/Potassium Guaiacolsulfonate Sustained-Release Capsules:

Dizziness; headache; nausea; upset stomach; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Guaifenesin/Potassium Guaiacolsulfonate Sustained-Release Capsules:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); lower back or side pain.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Phenylephrine 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 Dextromethorphan/Phenylephrine Syrup:

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 when using Dextromethorphan/Phenylephrine Syrup:

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; fever, chills, or persistent sore throat; hallucinations; loss of coordination; mental or mood changes (eg, depression); nervousness; seizures; severe dizziness, drowsiness, light-headedness, or headache; severe dryness of mouth, nose, and throat; severe or persistent trouble sleeping; shortness of breath; tremor; unusual bruising or bleeding; unusual tiredness or weakness; vision problems (eg, double vision, blurred vision).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Dextromethorphan/Promethazine 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 Dextromethorphan/Promethazine Syrup:

Dizziness; drowsiness; dry mouth; nausea; stomach upset.

Seek medical attention right away if any of these SEVERE side effects occur when using Dextromethorphan/Promethazine Syrup:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision; confusion; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; seizures; sensitivity to light; tremor; uncontrolled muscle movements; unusual bruising or bleeding; yellowing of skin or eyes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

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Side Effects by Body System - for Healthcare Professionals

Nervous system

Nervous system side effects have included drowsiness and dizziness. Other side effects such as excitation, mental confusion, and opiate-like respiratory depression have been rare and occurred at higher dosages. In some cases of abuse, patients experienced euphoria, hyperactivity, mania, and auditory and visual hallucinations.

Gastrointestinal

Gastrointestinal side effects have included stomach upset.

Hypersensitivity

Hypersensitivity side effects have included rare reports of fixed-drug eruptions.

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