NalDex Side Effects
Generic name: dexchlorpheniramine / phenylephrine
Note: This document contains side effect information about dexchlorpheniramine / phenylephrine. Some dosage forms listed on this page may not apply to the brand name NalDex.
Applies to dexchlorpheniramine/phenylephrine: oral tablet.
Do not use this medicine only to make a child sleepy.
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:
nervousness, trouble sleeping;
little or no urination; or
Common side effects may include:
dry mouth, nose, or throat;
blurred vision; or
feeling restless or excited (especially in children).
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
For Healthcare Professionals
Applies to dexchlorpheniramine/phenylephrine: oral tablet, oral tablet extended release.
Nervous system side effects have included headache, dizziness, mild sedation, tremor, weakness, insomnia, drowsiness, restlessness, convulsions, central nervous system depression, and nervousness.[Ref]
Respiratory side effects have included respiratory difficulty.[Ref]
Dermatologic side effects have included very rare reports of dermatitis.[Ref]
Ocular side effects have included blurring of vision.[Ref]
More about NalDex (dexchlorpheniramine / phenylephrine)
Related treatment guides
1. "Product Information. RhinaHist (dexchlorpheniramine-phenylephrine)." Kowa Pharmaceuticals America (formerly ProEthic) (2007):
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.