Mechanism of Action
DigiFab® Digoxin Immune Fab (Ovine) has an affinity for digoxin in the range of 109 to 1010 M-1, which is greater than the affinity of digoxin for its sodium pump receptor, the presumed receptor for its therapeutic and toxic effects. When administered to an intoxicated patient, DigiFab® Digoxin Immune Fab (Ovine) binds to molecules of digoxin, reducing free digoxin levels, which results in a shift in the equilibrium away from binding to the receptors, thereby reducing cardio-toxic effects. Fab-digoxin complexes are then cleared by the kidney and reticuloendothelial system.1
Read about efficacy of DigiFab® »
- DigiFab® [prescribing information]. BTG International Inc. January 2012.
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