This will decrease the swelling and shortness of breath a patient has. Digoxin is an ancient drug obtained from the foxglove plant. The heart beats stronger due to this agent that increases calcium. Symptoms of failure of the heart are relieved by this drug. Failure of the heart has an effect of raising adrenaline levels in the blood, causing strain on the heart.
Beta blockers keep the level of adrenaline low to reduce the extra work load on the heart.