these procedures were : exhibition of metabolic inhibitors ( 1.8 x 10 ( -6 ) m antimycin a , 3-5 mm sodium azide or 1 mm sodium iodoacetate ) , exhibition of cardiac glycosides ( 7.7 x 10 ( -6 ) m digoxin or 0.42 mm ouabain ) , and omission of glucose or potassium ions from the bathing solution .
C0007158
cardiac glycosides
C0012265
digoxin