Adenosine is used in the treatment of arrhythmia.
How Adenosine Works Adenosine is an anti-arrhythmic medication that regulates the heartbeat by blocking abnormal electrical signals in the heart.
Common side effects of adenosine include breathlessness, lightheadedness, dizziness, nausea, numbness, chest tightness, flushing of the face, and peripheral neuropathy (tingling and numbness in the feet and hands).