About regadenoson
Adenosine receptor agonist
Used for
- Stress agent for myocardial perfusion imaging in adults unable to exercise adequately.
Usual adult dose
0.4 mg by intravenous injection over 10 seconds, followed by a saline flush.
Common side effects
- Shortness of breath
- Headache
- Flushing
- Chest discomfort
Important warnings
- Can cause serious heart rhythm or blood pressure changes.
- May cause bronchoconstriction, especially with asthma or chronic obstructive pulmonary disease.
- Avoid caffeine and methylxanthines before testing as directed by the imaging team.
- Use with medical monitoring and resuscitation equipment available.
Pregnancy
Use only when clearly needed; human pregnancy data are limited.
Breastfeeding
It is unknown whether regadenoson enters breast milk; discuss timing with a clinician.
Interactions
- Caffeine, theophylline, and other methylxanthines may reduce its effect.
- Dipyridamole may increase its effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.