Adenosine is used for:
Treating certain types of irregular heartbeat. Certain brands of adenosine are used during a stress test of the heart. It may also be used for other conditions as determined by your doctor.
Adenosine is an antiarrhythmic and a nucleoside. It works to treat irregular heartbeat by slowing the electrical conduction in the heart, slowing heart rate, or normalizing heart rhythm. It helps during a stress test of the heart by improving blood flow to the heart.
Do NOT use adenosine if:
you are allergic to any ingredient in adenosine
you have second- or third-degree heart block and do not have an artificial pacemaker
you have sinus node disease (eg, sick sinus syndrome) and do not have an artificial pacemaker
you have certain breathing problems (eg, asthma)
Contact your doctor or health care provider right away if any of these apply to you.
Before using adenosine:
Some medical conditions may interact with adenosine. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
if you are pregnant, planning to become pregnant, or are breast-feeding
if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
if you have allergies to medicines, foods, or other substances
if you have a history of seizures
if you have blood vessel problems, heart problems, low blood volume, or lung or breathing problems (eg, emphysema, bronchitis)
Some MEDICINES MAY INTERACT with adenosine. Tell your health care provider if you are taking any other medicines, especially any of the following:
Aminophylline because the risk of seizures may be increased
Beta-blockers (eg, metoprolol), digoxin, diltiazem, or verapamil because the risk of irregular heartbeat may be increased
Carbamazepine or dipyridamole because they may increase the risk of adenosine's side effects
Methylxanthines (eg, caffeine, theophylline) because they may decrease adenosine's effectiveness
This may not be a complete list of all interactions that may occur. Ask your health care provider if adenosine may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.