Gitoxin, a Na+/K+-ATPase inhibitor, usually appears as a result of metabolic degradation of Digitoxin, is just the hydroxyl (ZOH) group close to the C-17β position, which changes the pharmacokinetics and pharmacodynamics of these substances considerably[1].
[1]. Danijela Krstic, et al. Effects of digoxin and gitoxin on the enzymatic activity and kinetic parameters of Na+/K+-ATPase. J Enzyme Inhib Med Chem. 2004 Oct;19(5):409-15.
















