Adenosine Receptor Agonist
Adenosine
The FDA lists this product in 30 strengths and forms.
Indications
Adenosine injection, USP is indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. Adenosine injection USP, a pharmacologic stress agent, is indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately ( 1 )
Contraindications
Adenosine injection is contraindicated in patients with: Second- or third-degree AV block (except in patients with a functioning artificial pacemaker) [see Warnings and Precautions (5.2) ] Sinus node disease, such as sick sinus syndrome or symptomatic bradycardia (except in patients with a functioning artificial pacemaker) [see Warnings and Precautions (5.2) ] Known or suspected bronchoconstrictive or bronchospastic lung disease (e.g., asthma) [see Warnings and Precautions (5.3) ] Known hypersensitivity to adenosine injection [see Warnings and Precautions (5.7) ] Second- or third-degree AV block (except in patients with a functioning artificial pacemaker) ( 4 ) Sinus node disease, such as sick sinus syndrome or symptomatic bradycardia (except in patients with a functioning artificial pacemaker) ( 4 ) Known or suspected bronchoconstrictive or bronchospastic lung disease (e.g., asthma) ( 4 ) Known hypersensitivity to adenosine injection ( 4 )
Warnings and precautions
Cardiac Arrest, Ventricular Arrhythmias, and Myocardial Infarction . Fatal cardiac events have occurred. Avoid use in patients with symptoms or signs of acute myocardial ischemia. Appropriate resuscitative measures should be available ( 5.1 ) Sinoatrial (SA) and Atrioventricular (AV) Nodal Block . First-, second- or third-degree AV block, or sinus bradycardia can occur. Discontinue adenosine injection if patient develops persistent or symptomatic high-grade AV block ( 5.2 ) Bronchoconstriction .
Can induce dyspnea, bronchoconstriction, and respiratory compromise, especially in patients with obstructive pulmonary disease. Discontinue adenosine injection if patient develops severe respiratory difficulties ( 5.3 ) Hypotension . Significant hypotension can occur. Discontinue adenosine injection if patient develops persistent or symptomatic hypotension ( 5.4 ) Cerebrovascular Accidents . Hemorrhagic and ischemic cerebrovascular accidents have occurred ( 5.5 ) Seizures .



