Sotalol (sotalol hydrochloride) — Uses, Dosage, Side Effects & Safety

Drug class: Class III antiarrhythmic; non-selective beta-blocker

Overview

Sotalol is a prescription medication used to treat certain types of abnormal heart rhythms (arrhythmias), such as atrial fibrillation, atrial flutter, and life-threatening ventricular arrhythmias. It works by helping your heart beat more regularly and preventing episodes of rapid or irregular heartbeats. Sotalol acts as both a beta-blocker and a potassium channel blocker. This means it slows down the heart rate and helps stabilize the electrical activity in the heart. It is important to take sotalol exactly as prescribed and to have regular check-ups, as it can affect your heart rhythm and may require dose adjustments. Key points to remember: Sotalol should be started in a hospital or under close medical supervision, especially for the first few doses, due to the risk of serious heart rhythm changes. Never stop taking sotalol suddenly without consulting your doctor.

Therapeutic uses

  • Ventricular arrhythmias (e.g., sustained ventricular tachycardia)
  • Supraventricular arrhythmias (e.g., atrial fibrillation, atrial flutter)
  • Maintenance of normal sinus rhythm in patients with atrial fibrillation/flutter

Common side effects

  • Bradycardia
  • Fatigue
  • Dizziness
  • Dyspnea
  • Torsades de Pointes
  • Hypotension
  • Heart failure exacerbation

Frequently Asked Questions about Sotalol

What is sotalol used for?

Sotalol is used to treat and prevent certain types of abnormal heart rhythms, such as atrial fibrillation, atrial flutter, and life-threatening ventricular arrhythmias.

How does sotalol work?

Sotalol works by blocking beta-adrenergic receptors and potassium channels in the heart, helping to slow the heart rate and stabilize electrical activity.

What are the most common side effects of sotalol?

Common side effects include tiredness, dizziness, slow heartbeat, nausea, and diarrhea. Serious side effects can include fainting, chest pain, or severe irregular heartbeat.

Can I stop taking sotalol suddenly?

No, do not stop taking sotalol suddenly without your doctor's advice, as this can worsen your heart condition or cause withdrawal symptoms.

Is sotalol safe during pregnancy or breastfeeding?

Sotalol should only be used during pregnancy or breastfeeding if clearly needed and prescribed by your doctor. Discuss risks and benefits with your healthcare provider.

How should I store sotalol?

Store sotalol at room temperature, away from moisture and heat. Keep out of reach of children.

What should I do if I miss a dose?

Take the missed dose as soon as you remember, unless it is almost time for your next dose. Do not double up. Contact your doctor if you miss more than one dose.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.