Phenylephrine / Promethazine Dosage

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Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Allergic Rhinitis

5 mL orally every 4 to 6 hours as needed.
Maximum dose: 30 mL/day.

Usual Adult Dose for Cold Symptoms

5 mL orally every 4 to 6 hours as needed.
Maximum dose: 30 mL/day.

Usual Pediatric Dose for Allergic Rhinitis

2 to 6 years: 1.25 mL orally every 4 to 6 hours as needed.
Maximum dose: 7.5 mL/day.

6 to 12 years: 2.5 mL orally every 4 to 6 hours as needed.
Maximum dose: 15 mL/day.

> 12 years: 5 mL orally every 4 to 6 hours as needed.
Maximum dose: 30 mL/day.

Usual Pediatric Dose for Cold Symptoms

2 to 6 years: 1.25 mL orally every 4 to 6 hours as needed.
Maximum dose: 7.5 mL/day.

6 to 12 years: 2.5 mL orally every 4 to 6 hours as needed.
Maximum dose: 15 mL/day.

> 12 years: 5 mL orally every 4 to 6 hours as needed.
Maximum dose: 30 mL/day.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

Phenylephrine-promethazine should be used with caution in patients with hypertension, cardiovascular disease, impaired liver or renal function, suspected Reyes syndrome, sleep apnea or narrow angle glaucoma.

Dialysis

Data not available

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