Effect of Tolbutamide on Plasma Insulin, Glucose and Corticosteroid Levels in the Rhesus Monkey

Abstract
Intravenous administration of sodium tolbutamide causes an increase in plasma insulin concentration in the male rhesus monkey. With doses in the 50-125 mg/kg range, peak elevations of insulin were found by radioimmunoassay 20 min. after the infusion. Tolbutamide caused a decrease in plasma glucose concentration, and an increase of plasma corticosteroids.