DexPhen M Side Effects
Generic name: dexchlorpheniramine / methscopolamine / phenylephrine
Note: This document contains side effect information about dexchlorpheniramine / methscopolamine / phenylephrine. Some of the dosage forms listed on this page may not apply to the brand name DexPhen M.
Some side effects of DexPhen M may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
Applies to dexchlorpheniramine / methscopolamine / phenylephrine: oral syrup
Get emergency medical help if you have any of these signs of an allergic reaction while taking dexchlorpheniramine / methscopolamine / phenylephrine: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using this medication and call your doctor at once if you have any of these serious side effects:
slow heart rate;
fast, pounding, or uneven heartbeats;
severe dizziness, anxiety, restless feeling, or nervousness;
painful or difficult urination;
urinating less than usual or not at all; or
increased blood pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure).
Less serious side effects of dexchlorpheniramine / methscopolamine / phenylephrine may include:
dizziness, drowsiness, feeling irritable;
restlessness or excitability (especially in children);
dry mouth, trouble swallowing;
nausea, constipation; or
warmth, tingling, or redness under your skin.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.
More DexPhen M resources
- DexPhen M Concise Consumer Information (Cerner Multum)
- Dexphen M solution MedFacts Consumer Leaflet (Wolters Kluwer)
- Extendryl chewable tablets MedFacts Consumer Leaflet (Wolters Kluwer)
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