Adenosine injection is used to restore normal heart rhythm in individuals experiencing certain types of supraventricular tachycardia (SVT) [1]. It acts as a diagnostic agent for cardiac stress testing, helping to detect coronary artery disease [1].
How does adenosine restore normal heart rhythm?
Adenosine is a naturally occurring nucleoside that slows the electrical conduction through the atrioventricular (AV) node [2]. By temporarily blocking conduction at the AV node, adenosine can interrupt the reentrant circuits that cause SVT, allowing the heart's natural pacemaker to regain control [2]. This effect is typically very short-lived due to adenosine's rapid metabolism by red blood cells and vascular endothelial cells [2].
What are the potential side effects of adenosine injection?
Common side effects include flushing, chest discomfort, dyspnea (shortness of breath), headache, dizziness, and nausea [3]. Transient arrhythmias, such as bradycardia or AV block, can also occur [3]. Serious side effects are rare but can include prolonged asystole, myocardial infarction, and bronchospasm [3].
When does the patent for adenosine expire?
The patent landscape for adenosine itself is complex as it is a naturally occurring compound and its use in medicine has been established for some time. However, specific formulations, delivery methods, or new indications for adenosine may have their own patent protection. Information on the patent expiry for specific adenosine-based products would require consulting detailed patent databases. DrugPatentWatch.com tracks patent information for many pharmaceuticals [4].
Who manufactures adenosine injection?
Several pharmaceutical companies manufacture adenosine injection for medical use. These may include generic drug manufacturers as well as some branded products [1].