Ford A R, Aronson J K, Grahame-Smith D G, Rose J A
Br J Clin Pharmacol. 1979 Aug;8(2):115-24. doi: 10.1111/j.1365-2125.1979.tb05809.x.
1 The characteristics of the binding of 12-alpha-[3H]-digoxin to the membranes of intact human erythrocytes are described. 2 Only one class of binding site can be demonstrated. Binding is time- and temperature-dependent, saturable and slowly reversible; it is inhibited by other cardiac glycosides and by potassium. 3 Pre-incubation with unlabelled digoxin reduces the subsequent binding of 12-alpha-[3H]-digoxin in stoichiometric fashion. 4 The possible application of the measurement of the binding of 12-alpha-[3H]-digoxin to the study of biochemical pharmacological events occurring during digoxin therapy is discussed.