Tri-Dex PE Side Effects
Generic Name: chlorpheniramine / dextromethorphan / phenylephrine
Note: This document contains side effect information about chlorpheniramine / dextromethorphan / phenylephrine. Some of the dosage forms listed on this page may not apply to the brand name Tri-Dex PE.
For the Consumer
Applies to chlorpheniramine / dextromethorphan / phenylephrine: oral liquid, oral solution, oral syrup, oral tablet
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
What are some other side effects of this drug?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Feeling nervous and excitable.
- Not able to sleep.
- Feeling sleepy.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
For Healthcare Professionals
Applies to chlorpheniramine / dextromethorphan / phenylephrine: oral drops, oral liquid, oral syrup, oral tablet effervescent, oral tablet extended release
Gastrointestinal side effects have included vomiting, diarrhea, dry mouth, nausea, anorexia, heartburn, and GI disturbance.[Ref]
Nervous system side effects have included sedation, drowsiness, dizziness, nervousness, headache, convulsions, central nervous system stimulation, hallucinations, tremors, and insomnia.[Ref]
Cardiovascular side effects have included cardiac arrhythmias, increased heart rate, and increased blood pressure.[Ref]
General side effects have included weakness and pallor.[Ref]
Genitourinary side effects have included polyuria and dysuria. Urinary retention may occur in patients with prostatic hypertrophy.[Ref]
Respiratory side effects have included respiratory difficulties.[Ref]
Ocular side effects have included diplopia.[Ref]
1. "Product Information. Rondec-DM (chlorpheniramine/DM/phenylephrine)." Alliant Pharmaceuticals Inc, Alpharetta, GA.
Some side effects of Tri-Dex PE may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
More about Tri-Dex PE (chlorpheniramine / dextromethorphan / phenylephrine)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
- En Español
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- Drug class: upper respiratory combinations