Which beta-blocker is known for its rapid onset and short duration of action in treating supraventricular tachycardia?

Esmolol is recognized for its rapid onset and short duration of action, making it particularly effective in the acute management of supraventricular tachycardia (SVT). This beta-blocker has a half-life of about 9 minutes, which allows for quick titration of dosage and enables it to be rapidly cleared from the body, making it suitable for use in emergency settings.

The ability to quickly control heart rate during SVT episodes is crucial, and esmolol can achieve this with minimal long-term effects, as it is administered via intravenous infusion. This rapid action is due to its unique pharmacokinetic properties, including rapid hydrolysis by red blood cell esterases, which distinguishes it from other beta-blockers that have longer durations of action or are used primarily for chronic management of conditions like hypertension or heart failure.

This characteristic makes esmolol particularly advantageous in acute care situations, allowing for quick adjustments in treatment as needed based on the patient's response.