the effective range varied depending on the cardiac glycoside tested : with digoxin and ouabain very similar results were found- the positive inotropic concentration ranges being within 8x10 ( -6 ) m and 6x10 ( -5 ) m , the maximum positive inotropic effects attainable being about 100 % and the concentration for half maximum effects ( ed-50 ) being 2.4x10 ( -5 ) m and 2.3x10 ( -5 ) m , respectively .
C0007158
cardiac glycoside
C0012265
digoxin