Phenylephrine and promethazine Side Effects

Please note - some side effects for Phenylephrine and promethazine may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Side Effects by Body System - for Healthcare Professionals

Applies to: oral syrup

Cardiovascular

Cardiovascular side effects have included increased or decreased blood pressure.

Nervous system

Nervous system side effects have included sedation, sleepiness, dizziness, confusion, disorientation, restlessness, anxiety, nervousness, tremor, weakness, and extrapyramidal symptoms such as oculogyric crisis, torticollis, and tongue protrusion.

Ocular

Ocular side effects have included blurred vision.

Gastrointestinal

Gastrointestinal side effects have included dry mouth, nausea, and vomiting.

Hematologic

Hematologic side effects have included rare cases of leukopenia, thrombocytopenia, and agranulocytosis.

Dermatologic

Dermatologic side effects have included rash and rarely photosensitivity.

Respiratory

Respiratory side effects have included respiratory distress.

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