Hypokalemia, hyperglycemia, and acidosis after intentional theophylline overdose.

Three cases of intentional theophylline overdose in adult patients are described. Among these, hypokalemia, hyperglycemia, and acidosis were found, and markedly elevated initial serum theophylline concentrations (106, 76.2, and 41.4 micrograms/ml) were measured. All patients recovered completely with conservative management. The observed biochemical abnormalities rapidly resolved during maintenance fluid therapy and modest potassium supplementation. In addition, seizures, ventricular arrhythmias, and other serious toxic effects were notably absent.