TABLE 1

Plasma glucose levels under different test conditions

Condition	Plasma Glucose as a Function of Time
Condition		First Hour	Second Hour	Third Hour	Fourth Hour
	mg/dl
Hyperglycemia + nitroglycerin	87 ± 4	245 ± 6	255 ± 2	255 ± 3
Hyperglycemia + sildenafil	97 ± 4	250 ± 5	258 ± 6	255 ± 3
Euglycemia + nitroglycerin	84 ± 4	81 ± 4	80 ± 4	79 ± 3
Euglycemia + sildenafil	91 ± 5	90 ± 3	89 ± 3	87 ± 3