Overview

Adenosine is a chemical found in human cells. There are three different forms: adenosine, adenosine monophosphate (AMP), and adenosine triphosphate (ATP).

Adenosine blocks electrical signals in the heart that cause irregular heart rhythms. ATP might also prevent changes in energy metabolism that cause weight loss in people with advanced cancer.

An injectable form of adenosine is a US FDA-approved prescription drug for a condition involving rapid heart rate (paroxysmal supraventricular tachycardia). It is also used as a prescription drug to help measure blockages in the arteries of the heart. People also use adenosine, AMP, and ATP as supplements for athletic performance, cold sores, and many other purposes, but there is no good evidence to support these uses.

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