Betapace

Definition

Betapace is a brand name for sotalol, a Class III antidysrhythmic drug that works by blocking potassium channels. It is used to treat life-threatening ventricular arrhythmias and maintain normal heart rhythm.

5 Must Know Facts For Your Next Test

1. Betapace prolongs the action potential duration and refractory period in cardiac tissues.
2. It has both beta-adrenergic blocking and potassium channel blocking effects.
3. Betapace is contraindicated in patients with asthma or severe renal impairment.
4. Common side effects include bradycardia, dizziness, and fatigue.
5. Electrolyte imbalances, especially low potassium or magnesium levels, can increase the risk of torsades de pointes when taking Betapace.

Review Questions

• What dual mechanism does Betapace utilize to achieve its therapeutic effect?
• Why must patients with renal impairment be cautious when taking Betapace?
• What are some common side effects associated with Betapace?

Related terms

Amiodarone: Another Class III antidysrhythmic drug used to treat various types of arrhythmias.

Torsades de Pointes: A specific type of abnormal heart rhythm that can be a complication of taking potassium channel blockers.

Bradycardia: A slower than normal heart rate which can be a side effect of Betapace.