the antiarrhythmic effects of 4 pteridine analogues , 2 of which are potassium-sparing diuretics , triamterene ( 2 , 4 , 7-triamino-6-phenylpteridine ) and [ 2-phenyl-4 , 7 diaminopteridine-6- ( n-diethylaminoethyl ) carboxamide ] and 2 of which have no diuretic effects [ 2-phenyl-4 , 7-diaminopteridine-6- ( n-2-hydroxyethyl ) carboxamide ] , on ouabain-induced ventricular tachycardia in intact pentobarbital-anesthetized dogs were investigated .
C0033991
pteridine
C0040869
triamterene