Used for: Ventricular arrhythmia, Supraventricular arrhythmia
Chinese name:

What is Sotalol for?

Sotalol belongs to a class of medications called non-selective beta blockers. It is classified as a Class III antiarrhythmic drug. It is used to treat certain types of abnormal heartbeats, including supraventricular arrhythmia (e.g. atrial fibrillation) and ventricular arrhythmia (e.g. ventricular tachycardia).

How to use it?

Sotalol can be taken orally as tablets. The usual initial dose is 80 mg twice daily. If the initial dose does not achieve a therapeutic response in three days, you may increase the dose to 120 mg twice daily. The usual maintenance dose is 160-320 mg/day.

What are the side effects of Sotalol?

Common side effects of Sotalol include fatigue, chest pain, palpitations, diarrhea, nausea, vomiting or dyspnea.

Who should not take Sotalol?

  • People who are allergic or sensitive to Sotalol, any ingredient of the formulation, or other beta blockers, such as Pindolol, and Propranolol
  • Patients with asthma, cardiogenic shock, low blood pressure, heart rate slower than normal, metabolic acidosis, second- or third-degree heart block

Pharmacist Tips:

  • If you are taking an antacid, take it 2 hours before or 2 hours after you take sotalol.
  • If you have diabetes, carefully monitor your blood sugar level as Sotalol may mask the symptoms of hypoglycaemia.

Common dosing schedule:
Sotalol can be taken with or without food.


This schedule is for reference only, adjustments may be made according to individual needs.


Some common medications Sotalol may interact with:

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Sotalol in Hong Kong?

In Hong Kong, Sotalol is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Sotalol in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Brands in Hong Kong
Available dosage
  • 80mg (Tablets)
Drug class
Sub class
Beta Blockers
Other drugs in same class