Which medication is commonly used to correct supraventricular tachycardia (SVT)?

Adenosine is commonly used to correct supraventricular tachycardia (SVT) because of its unique ability to quickly restore normal heart rhythm. It acts on the AV node to temporarily block conduction and interrupt the reentrant pathways that cause SVT. The onset of action is very rapid, often working within seconds, which makes it particularly effective in emergency situations where the heart rate must be normalized quickly.

In the context of SVT, adenosine is usually administered as a rapid intravenous push followed by a saline flush to ensure swift delivery to the heart. Its pharmacological profile, including a short half-life, allows for quick evaluation of its effectiveness, and in case of adverse reactions, the effects diminish swiftly. This rapid action is critical in managing patients with symptomatic SVT to prevent complications from prolonged tachycardia.

Other medications listed can be effective in certain situations but do not serve the same immediate purpose that adenosine does for SVT specifically.