Theraflu Cold & Cough Side Effects
Generic name: dextromethorphan / pheniramine / phenylephrine
Medically reviewed by Drugs.com. Last updated on Nov 11, 2024.
Note: This document provides detailed information about Theraflu Cold & Cough Side Effects associated with dextromethorphan / pheniramine / phenylephrine. Some dosage forms listed on this page may not apply specifically to the brand name Theraflu Cold & Cough.
Applies to dextromethorphan / pheniramine / phenylephrine: oral liquid.
Important warnings
This medicine can cause some serious health issues
Do not use this medicine if you are using or if you have used an MAO inhibitor in the past 14 days.
A dangerous drug interaction could occur.
MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, and tranylcypromine.
Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.
Stop using this medicine and call your doctor at once if you have:
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dizziness;
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nervousness; or
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sleep problems (insomnia).
Less serious side effects may be more likely, and you may have none at all.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
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More about Theraflu Cold & Cough (dextromethorphan / pheniramine / phenylephrine)
- Check interactions
- Compare alternatives
- Dosage information
- Drug class: upper respiratory combinations
Patient resources
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Further information
Theraflu Cold & Cough side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.