Congestive Heart Failure Home > What Is Digoxin Made Of?

Digoxin (Lanoxin®) is a prescription drug approved to treat congestive heart failure (CHF) and atrial fibrillation. But what is digoxin made of?
Digoxin belongs to a group of medicines called cardiac glycosides or digitalis glycosides. Digitalis medications, such as digoxin, are extracted from the digitalis plant, a plant more commonly known as foxglove.
This medication is available as a tablet, an injection, and an elixir (a liquid form taken by mouth). It works by blocking a certain enzyme in the body called sodium-potassium ATPase. This helps the heart contract more forcefully with each heartbeat, making it more efficient at pumping blood throughout the body. It also slows down the rate at which the heart beats.
(Click Digoxin for more detailed information, including who can take it, potential side effects, and more. This article also discusses why this drug may not be suitable for some people.)
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Last reviewed by: Kristi Monson, PharmD;
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