Drug reference
adenosine
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Cardiovascular (Anti Arrhythmia)
Mechanism of action
PSVT: Slows conduction through AV node and interrupts AV reentry pathways, which restore normal sinus symptoms
Stress testing: A2A adenosine receptor agonist; activation of the A2A adenosine receptor produces coronary vasodilation and increases coronary blood flow
Common side effects
- Lightheadedness
- Dyspnea
- Flushing
- Tingling
- Chest tightness
- Numbness
Contraindications
- 2nd or 3rd degree AV block (except those on pacemakers)
- Sinus node disease, such as sick sinus syndrome or symptomatic bradycardia (except in patients with a functioning artificial pacemaker)
- Adenoscan: Contraindicated in bronchoconstrictive or bronchospastic lung disease (eg, asthma)
Related conditions
Frequently asked questions
What drug class is adenosine?
adenosine belongs to: Cardiovascular.
How does adenosine work?
PSVT: Slows conduction through AV node and interrupts AV reentry pathways, which restore normal sinus symptoms Stress testing: A2A adenosine receptor agonist; activation of the A2A adenosine receptor produces coronary vasodilation and increases coronary blood flow
What are the common side effects of adenosine?
Lightheadedness, Dyspnea, Flushing, Tingling, Chest tightness, Numbness
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