How does sotalol work?
Sotalol blocks beta receptors in the heart, slowing the heart rate and reducing strain. It also prolongs the electrical activity in the heart, preventing irregular rhythms.
What is sotalol used to treat?
Sotalol is commonly prescribed for:
- Atrial fibrillation (AF) (to control heart rate and rhythm)
- Ventricular arrhythmias (to prevent life-threatening abnormal heart rhythms)
- Other heart rhythm disorders (as prescribed by a specialist)
Who can take sotalol?
Sotalol is suitable for most adults with heart rhythm disorders, as prescribed by a doctor.
Who might not be able to take sotalol?
Sotalol may not be suitable if you:
- Have asthma or severe breathing problems
- Have low blood pressure (hypotension)
- Have severe kidney disease
- Have a history of heart failure or slow heart rate (bradycardia)
Can I take sotalol if I’m pregnant or breastfeeding?
Sotalol isn’t usually recommended during pregnancy or breastfeeding, but your doctor will assess the risks and benefits before prescribing it.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.
How effective is sotalol?
Sotalol is highly effective at controlling heart rhythm when taken as prescribed, but regular monitoring may be needed.
What should I do if I take too much?
Taking too much sotalol can cause dangerously low blood pressure, slow heart rate, or severe dizziness. If you think you’ve taken too much, seek emergency medical help immediately.
What dose of sotalol is usually taken?
- For atrial fibrillation: 40mg to 160mg twice daily
- For ventricular arrhythmias: 80mg to 320mg daily, divided into doses
Your doctor will determine the correct dose based on your condition.
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What are the side effects of sotalol?
Common side effects include:
- Dizziness or lightheadedness
- Fatigue
- Slow heart rate (bradycardia)
- Cold hands and feet
Serious side effects, such as severe dizziness, shortness of breath, or worsening arrhythmias, require urgent medical attention.
How should I take sotalol?
Sotalol is taken as tablets, usually once or twice daily, with or without food.
When should sotalol be taken?
Sotalol should be taken at the same time each day, as prescribed by your doctor.
What are the brand names for sotalol?
Sotalol is available as a generic medicine, but some branded versions include:
- Betapace (outside the UK)
- Sotalex
Final thoughts
Sotalol is an effective medication for controlling abnormal heart rhythms, but it should be taken exactly as prescribed. Regular heart monitoring may be required to check for side effects. If you experience dizziness, breathlessness, or worsening heart symptoms, speak to your doctor or pharmacist.
