saluretic drugs like thiazide and benzothiadiazine ( chloruretic sulfonamides ) , potassium-sparing diuretics ( amiloride , triamterene and spironolactone ) and diuretics with an effect on the loop of henle ( furosemide , ethacrynic acid , bumetadine and etozoline ) support the efficiency of digitalis preparations in such cases , in which the load of the heart may be diminished by hemodynamic disburdening of the myocardium through reduction of preload .
C0002502
amiloride
C0037982
spironolactone