The trade name for adenosine is Adenocard [1]. Adenosine is used to treat supraventricular tachycardia (SVT) [2].
Why is Adenocard prescribed?
Adenocard is administered intravenously to rapidly convert narrow-complex regular tachycardia to normal sinus rhythm [3]. This type of rapid heart rhythm, known as SVT, originates above the ventricles [2]. Adenosine is the drug of choice for terminating most cases of SVT because of its rapid onset and extremely short duration of action [4].
How does adenosine work?
Adenosine is a naturally occurring nucleoside. When administered, it acts on the AV nodal tissue, slowing conduction through the AV node and producing a transient block [4]. This interruption of electrical signals helps to reset the heart rhythm back to normal [4]. Its effect is very short-lived, lasting only seconds, as it is rapidly taken up by red blood cells and vascular endothelial cells [4].
What are the potential side effects of adenosine?
Common side effects of adenosine administration include flushing, chest pain, shortness of breath, and a sense of impending doom [4]. These effects are generally transient and resolve quickly due to the drug's short half-life [4]. Other reported side effects include headache, dizziness, nausea, and numbness [1].
How is adenosine administered and what is the typical dosage?
Adenosine is given as a rapid intravenous bolus injection, usually followed by a saline flush [3]. The initial dose for adults is typically 6 mg [4]. If the SVT does not convert, a second bolus of 12 mg can be administered [4]. A third 12 mg bolus may be given if necessary [4]. Dosing in pediatric patients may differ and should be based on weight [4].
What happens if adenosine is not effective?
If adenosine does not successfully convert the SVT, other treatment options may be considered. These can include vagal maneuvers, calcium channel blockers, beta-blockers, or cardioversion [4].
How long does adenosine last in the body?
Adenosine has a very short half-life, typically less than 10 seconds [4]. This rapid metabolism means its effects are extremely brief, which is crucial for its use in terminating tachyarrhythmias [4].
Are there any drug interactions with adenosine?
Dipyridamole can potentiate the effects of adenosine, so lower doses may be required [1]. Conversely, theophylline and caffeine can antagonize the effects of adenosine, potentially requiring higher doses [1].
What is the regulatory status and availability of adenosine?
Adenosine is available as a prescription medication [1]. It is approved by regulatory agencies for the treatment of SVT [3].
Where can I find more information about drug patents related to adenosine?
Information on drug patents, including those for adenosine and its formulations, can be found at DrugPatentWatch.com [5].
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Sources:
[1] https://www.drugpatentwatch.com/drug/adenosine
[2] https://www.nhs.uk/medicines/adenosine/
[3] https://www.ncbi.nlm.nih.gov/books/NBK539865/
[4] https://www.merckmanuals.com/professional/cardiovascular-disorders/heart-rhythm-disorders/supraventricular-tachycardia-svt
[5] https://www.drugpatentwatch.com/