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Neo AC Side Effects

Generic name: codeine / pseudoephedrine / pyrilamine

Note: This document contains side effect information about codeine / pseudoephedrine / pyrilamine. Some of the dosage forms listed on this page may not apply to the brand name Neo AC.

Applies to codeine/pseudoephedrine/pyrilamine: oral liquid


The most commonly occurring side effects include dry mouth, dizziness, sleepiness, and disturbed coordination.[Ref]


Frequency not reported: Hypotension, headache, palpitations, tachycardia, extrasystoles


Frequency not reported: Nasal dryness, thickening of bronchial secretions, tightness of chest and wheezing, nasal stuffiness, respiratory depression


Frequency not reported: Confusion, restlessness, excitation, anxiety, nervousness, irritability, insomnia, euphoria, hysteria, hallucination


Frequency not reported: Dry mouth, dry throat, epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation

Nervous system

Frequency not reported: Sedation, sleepiness, dizziness, disturbed coordination, tremor, paresthesias, neuritis, convulsions, CNS depression


Frequency not reported: Urinary frequency, difficult urination, urinary retention


Frequency not reported: Blurred vision, diplopia


Frequency not reported: Chills, fatigue, vertigo, tinnitus


Frequency not reported: Drug rash, photosensitivity, excessive perspiration, urticaria


1. "Product Information. Codeine Sulfate (codeine)." Lannett Company Inc, Philadelphia, PA.

2. American Geriatrics Society 2012 Beers Criteria Update Expert Panel "American Geriatrics Society updated Beers Criteria for potentially inappropriate medication use in older adults." J Am Geriatr Soc 60 (2012): 616-31

3. "Product Information. Neo AC (codeine / pseudoephedrine / pyrilamine)." Laser Pharmaceuticals, Crown Point, IN.

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.