A study of oral glucose tolerance test in patients of hypertension receiving propranolol.

The effect of 4 weeks, 8 weeks and more than one year of treatment with the non-selective beta-receptor blocking agent, propranolol was investigated on glucose tolerance by oral glucose tolerance test. Statistically significant decrease in blood glucose level was observed in oral glucose tolerance test after 4 weeks and 8 weeks therapy with propranolol (P = less than .01 and less than .001). Statistically significant increase in glucose tolerance was also observed in all the samples of blood glucose level (P = less than .001) after more than one year therapy.