2.2 Recommended Dosage
Prior to administration of Mannitol Injection, evaluate renal, cardiac, and pulmonary status of the patient and correct fluid and electrolyte imbalances.
The total dosage, concentration, and rate of administration depend on the age, weight, and condition of the patient being treated, including fluid requirement, electrolyte balance, serum osmolality, urinary output, and concomitant therapy.
The following outline of administration and dosage is only a general guide to therapy.
Reduction of Intracranial Pressure and Treatment of Cerebral Edema
Usually a maximum reduction in intracranial pressure can be achieved with a dose of 0.25 g/kg administered as an intravenous infusion over at least 30 minutes, which may be repeated every six to eight hours. During and following infusion of Mannitol Injection, monitor fluid and electrolytes, serum osmolarity, and renal, cardiac, and pulmonary function. Discontinue Mannitol Injection if renal, cardiac, or pulmonary status worsens or CNS toxicity develops [see Warnings and Precautions (5.2, 5.3, 5.4, 5.5)].
Reduction of Intraocular Pressure
The recommended dosage is 1.5 to 2 g/kg as a single dose administered as an intravenous infusion over at least 30 minutes. When used preoperatively, administer Mannitol Injection 60 to 90 minutes before surgery to achieve maximal reduction of intraocular pressure before operation.