<unk>  is a cardiac glycoside. It has similar structure and effects to digoxin (though the effects are longer-lasting).  Unlike digoxin (which is eliminated from the body via the kidneys), it is eliminated via the liver, so could be used in patients with poor or erratic kidney function.  However, it is now rarely used in current Western medical practice.  While several controlled trials have shown digoxin to be effective in a proportion of patients treated for heart failure, the evidence base for<unk>  is not as strong, although it is presumed to be similarly effective.
Digitoxin
Digoxin
Amiodarone 
Carvedilol
Colestilan
Bisoprolol
Captopril
Benziodarone