Vincristine Sulfate 1 mg/ml solution for injection
The following dosage regimens have been used:
Adults: The drug is administered intravenously at weekly intervals. The recommended dose is 1.4 to 1.5 mg/m2 up to a maximum weekly dose of 2 mg.
Children: The suggested dose is 1.4 to 2 mg/m2 given on a weekly basis with a maximum weekly dose of 2 mg. For children weighing 10 kg or less the starting dose should be 0.05 mg/kg administered as a weekly intravenous injection.
Elderly: The normal adult dose is still appropriate in the elderly.
Hepatic Impairment: Because of the hepatic metabolism and biliary excretion of vincristine, reduced doses are recommended in patients with obstructive jaundice or other hepatic impairment. Patients with liver disease sufficient to decrease biliary excretion may experience an increase in the severity of side-effects. A 50 per cent reduction in the dose of vincristine sulfate is recommended for patients having a direct serum bilirubin value above 3 mg/100 ml (51 micromol/l).
Caution: If leakage into surrounding tissue should occur during intravenous administration of vincristine, it may cause considerable irritation. The injection should be discontinued immediately and any remaining portion of the dose should then be introduced into another vein. Local injection of the hyaluronidase and the application of moderate heat to the area of leakage help to disperse the drug and are thought to minimise discomfort and the possibility of cellulitis.
Method of administration
This preparation is for intravenous use only. It should only be administered by individuals experienced in vincristine administration.
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