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Terms Of Use


Brand Name(s) : Sotacor, Beta-Cardone
Side Effects


Sotalol should be used with caution in:

It should not be used in:

Also see list of precautions and interactions


Store sotalol tablets below 25°C in their original package. They should not get too hot or damp so do not store them in the bathroom or on a windowsill.


What is it used for?

  • Sotalol is used to treat arrhythmias, conditions in which the heart beat is irregular.
  • It is a type of beta-adrenergic blocking agent, sometimes known as beta-blockers. It is also an anti-arrhythmic.
  • It is used to slow the heart rate and let it beat with less force. It also regulates electrical impulses in the heart that cause it to beat, and in so doing, controls abnormal heart rhythms.
  • In general this drug is used to normalise irregular heart beats.

Listed below are the typical uses of sotalol:


How often do I take it?

  • Sotalol tablets should be taken exactly as your doctor has told you. The tablets should be swallowed whole with a glass of water.
  • Sotalol injections will be administered by a doctor or nurse.
  • Use this medication for the duration of the prescription in order to get the most benefit from it. It is important that you do not stop taking this medicine, unless advised by your doctor.
  • Remember to use it at the same time each day - unless specifically told otherwise by your doctor.
  • Certain medical conditions may require different dosage instructions as directed by your doctor.

What dose?

  • Dosage is based on your age, gender, medical condition, response to therapy, and use of certain interacting medicines.

Do I need to avoid anything?

  • The drug may make you feel dizzy and tired. If this happens, you should use caution when driving or operating machinery. Consult your doctor or pharmacist for more details.

When can I stop?

  • It is important to continue taking this medication even if you feel well, unless your doctor tells you to stop.


  • Irregular heart beat
  • Slow heart beat
  • Breathlessness
  • Dizziness and light-headedness
  • Fainting
  • Tiredness
  • Chest pain
  • Palpitations (abnormal awareness of your heart beat)
  • Fluid in the lungs or ankles
  • Low blood pressure
  • Heart failure
  • Feeling or being sick
  • Diarrhoea
  • Indigestion
  • Stomach pain
  • Sleep problems
  • Hearing problems
  • Pins and needles or tingling in hands and feet
  • Problems with sight
  • Cold and/or blue fingers and toes
  • Dry eyes
  • Skin rash
If any of these persist or you consider them severe then you should inform your doctor.

Tell your doctor immediately if you develop any of the following symptoms:

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

The Yellow Card Scheme allows you to report suspected side effects from any type of medicine (which includes vaccines, herbals and over the counter medicines) that you are taking. It is run by the medicines safety watchdog called the Medicines and Healthcare products Regulatory agency (MHRA). Please report any suspected side effect on the Yellow Card Scheme website.


Before taking sotalol, tell your doctor or pharmacist if you are allergic to it; or to other beta-blockers; or if you have any other allergies.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have:

  • Allergy (hypersensitivity) to sotalol, any of the ingredients in the tablets or injection or to any other beta-blockers
  • A type of irregular heart beat called sick sinus syndrome
  • A type of irregular heart beat called Torsades de Pointes
  • Chest pain (angina) that is not well controlled by other medicines
  • A type of chest pain called Prinzmetal's angina
  • Asthma
  • Wheezing or a lung disease called chronic obstructive pulmonary disease (COPD)
  • A severe circulation disorder called cardiogenic shock
  • Uncontrolled heart failure
  • Increased acid levels in the blood (metabolic acidosis)
  • Severe kidney problems
  • Low blood pressure (hypotension)
  • Tumour of the adrenal gland (phaeochromocytoma)
  • Very slow heart rate (severe bradycardia)
  • Blockages in the large arteries of the legs and arms
  • A condition called Raynaud's phenomenon that causes painful, pale, cold fingers and toes

Before using this medication, tell your doctor or pharmacist your medical history, especially any of the following:

  • Low levels of potassium or magnesium in the blood
  • Diabetes
  • Kidney problems
  • Liver problems
  • History of allergies
  • A condition that causes abnormal muscle weakness called myasthenia gravis
  • Heart problems, including a recent heart attack
  • Overactive thyroid (hyperthyroidism)
  • A skin condition called psoriasis
  • If you are pregnant
  • If you are breastfeeding

Before having surgery, tell your doctor or dentist that you are taking this medication.

Does alcohol intake affect this drug?

  • Moderate amounts of alcohol are not known to affect sotalol.

Diabetes: Sotalol should be used with caution in people with diabetes as it may mask some of the important signs of low blood sugar.

Overactive thyroid: Sotalol should be used with caution in people with an overactive thyroid (hyperthyroidism) as it may mask certain signs of the condition.

Kidney problems: Sotalol should be used with caution in people with kidney problems as it is broken down by the kidneys for excretion.

Psoriasis: Sotalol should be used with caution in people with the skin condition known as psoriasis as it may make the condition worse.

Heart problems: Sotalol should be used with caution in people with certain heart problems, such as congestive heart failure, as it may make their condition worse.

Pregnancy and breastfeeding - please ensure you read the detailed information below


If you are pregnant, sotalol should only be taken if your doctor considers it to be essential.,

It is sensible to limit use of medication during pregnancy whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.


If you are breastfeeding, sotalol should only be taken if your doctor considers it to be essential.

It is sensible to limit use of medication during breastfeeding whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.


Before using this medicine, tell your prescriber of all the medicines you are taking including prescription medicines and medicines you have bought over the counter without a prescription. Tell your prescriber if you are taking vitamins or complementary remedies such as herbal products, as these can also interact with medicines.

If you are taking more than one medicine, these may interact with each other. Your prescriber may decide to use medicines which interact with each other if the benefit outweighs the risks. In these cases, the dose of your medicines may need to be adjusted or you may be monitored more closely.

The following medicines may interact with sotalol:

  • Other medicines used for heart problems, such as amiodarone, procainamide, quinidine, disopyramide, bepridil, disopyramide
  • Medicines used to treat high blood pressure, such as clonidine and guanethidine
  • Medicines for depression known as tricyclic antidepressants
  • Medicines used to lower blood pressure (antihypertensives), such as calcium channel blockers (verapamil and diltiazem)
  • Medicines used to fight infections, such as moxifloxacin
  • Medicines used to allergic conditions (antihistamines), such as mizolastine, terfenadine
  • A medicine used to prevent and treat malaria called artemether with lumefantrine

This information does not contain all possible interactions. Therefore, tell your prescriber of all the products you are using before taking this medicine.

If you have a question or want to discuss anything about your medicine, speak to your local pharmacist.


If you take more sotalol tablets than you should, go to the nearest hospital casualty department or tell your doctor immediately.

If you think you, or someone you care for, might have accidentally taken more than the recommended dose of sotalol or intentional overdose is suspected, contact your local hospital, GP or if in England call 111. In Scotland call NHS 24. In Wales, call NHS Direct Wales. In the case of medical emergencies, always dial 999.


If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

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Source: Selected from data included with permission and copyrighted by Boots UK Limited. This copyrighted material is sourced from a licensed data provider and is not for distribution, except as may be authorised by the applicable terms of use.
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgement of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse events, nor should it be construed to indicate that use of a particular medicine is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any medicine, changing any diet, or discontinuing any course of treatment.

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