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Chlorpheniramine / methscopolamine / phenylephrine / pseudoephedrine Side Effects

Applies to chlorpheniramine/methscopolamine/phenylephrine/pseudoephedrine: oral kit.


Cardiovascular side effects have included tachycardia, palpitations, flushing, arrhythmias, and cardiovascular collapse with hypotension.[Ref]

Nervous system

Nervous system side effects have included lassitude, drowsiness, giddiness, increased irritability or excitement, headache, fear, anxiety, nervousness,dizziness, restlessness, tremor, weakness, insomnia, hallucinations, convulsions, and CNS depression.[Ref]


Ocular side effects have included blurred vision.[Ref]


Gastrointestinal side effects have included nausea and excessive dryness of the nose, throat, and mouth.[Ref]


Respiratory side effects have included respiratory difficulty.[Ref]


Genitourinary side effects have included dysuria and urinary retention in patients with prostatic hypertrophy.[Ref]

More about chlorpheniramine / methscopolamine / phenylephrine / pseudoephedrine

Related treatment guides


1. "Product Information. AlleRx Dose Pack (chlorpheniramine/methscopolamine/PE/PSE)." Cornerstone BioPharma Inc, Cary, NC.

Further information

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.