Posology: Adults: Intravenous bolus injection: Normal dose is 50 to 100 micrograms, which can be repeated until the desired effect is attained. One bolus dose should not exceed 100 micrograms.
Continuous infusion: Initial dose is 25 to 50 micrograms/min. The doses may be increased or decreased to maintain the systolic blood pressure close to the normal value. Doses between 25 and 100 micrograms/min have been assessed to be effective.
Renal impairment: Lower doses of phenylephrine may be needed in patients with impaired renal function.
Hepatic Impairment: Higher doses of phenylephrine may be needed in patients with cirrhosis of the liver.
Older people: Treatment of the elderly should be carried out with care.
Paediatric population: The safety and efficacy of phenylephrine in children have not been established. No data are available.
Method of administration: Parenteral administration. Intravenous bolus injection or intravenous infusion.
Phenylalpha Solution for Injection in Pre-filled Syringe 500mcg/10ml should only be administered by healthcare professionals with appropriate training and relevant experience.