Pharmacology C.V.S 999846a3 All are true about digoxin except: A Causes bradycardia due to increased vagal tone B Acts by inhibiting Na+K+ ATPase in myocardial fibres C It is 95% plasma protein bound D Primarily excreted unchanged by glomerular filtration High-Yield Explanation Ans. (C) It is 95% plasma protein bound(Ref: KDT 8th/e p559)Plasma protein binding of digitoxin is high (95%) whereas it is low (70-80%) for digoxin.