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Oral formulations of sotalol.

Drugs List

  • SOTACOR 80mg tablets
  • sotalol 160mg tablets
  • sotalol 40mg tablets
  • sotalol 80mg tablets
  • Therapeutic Indications


    Maintenance of sinus rhythm after conversion of atrial flutter/fibrillation
    Supraventricular arrhythmias - prophylaxis and treatment
    Ventricular arrhythmias - treatment (except torsade de pointes)

    Treatment of life threatening ventricular tachyarrhythmias (except Torsade de Pointes) and symptomatic non-sustained ventricular tachyarrhythmias.

    Maintenance of sinus rhythm after conversion of atrial flutter/fibrillation.

    Prophylaxis of supraventricular arrhythmias:
    Paroxysmal atrial tachycardia.
    Paroxysmal atrial fibrillation.
    Paroxysmal A-V nodal re-entrant tachycardia.
    Paroxysmal A-V re-entrant tachycardia using accessory pathways.
    Paroxysmal supraventricular tachycardia after cardiac surgery.



    Initial dose: 80mg daily as one or two divided doses. Adjust at two to three day intervals monitoring QT intervals.
    Usual dose: 160mg to 320mg daily in two divided doses (approximately 12 hour intervals).

    Life threatening refractory arrhythmias may require doses up to 480mg to 640mg daily. These doses should only be used under specialist medical supervision when the benefits outweigh the risks.


    Atrial flutter, ventricular arrhythmias, life-threatening ventricular tachyarrhythmia and supraventricular arrhythmias (unlicensed)
    Initiated under specialist supervision and ECG monitoring and measurement of corrected QT interval.

    Children aged 12 to 18 years
    Initial dose: 80mg once daily or 40mg twice daily. Increase gradually at intervals of two to three days.
    Usual dose: 80mg to 160mg twice daily.
    Higher doses of 480mg to 640mg daily may be used for life-threatening ventricular arrhythmias under specialist supervision.

    Children aged 1 month to 12 years
    Initial dose: 1mg/kg twice daily. Increase as necessary every two to three days.
    Maximum dose: 4mg/kg twice daily or 80mg twice daily.


    Ventricular arrhythmias, life-threatening ventricular tachyarrhythmia and supraventricular arrhythmias (unlicensed)
    Initiated under specialist supervision and ECG monitoring and measurement of corrected QT interval

    Initial dose: 1mg/kg twice daily. Increase as necessary every three to four days.
    Maximum dose: 4mg/kg twice daily.

    Patients with Renal Impairment

    The following dose amendments are recommended based on creatinine clearance:
    Greater than 60ml/minute: Normal adult dose.
    30 to 60ml/minute: Half of the normal adult dose.
    10 to 30ml/minute: Quarter of the normal adult dose.


    Anaesthesia producing myocardial depression
    Cardiogenic shock
    Diabetic ketoacidosis
    History of asthma
    History of bronchospasm
    History of obstructive pulmonary disease
    Hypotension - unless secondary to arrhythmia
    Long QT syndrome
    Metabolic acidosis
    Non-paced second degree atrioventricular block
    Non-paced sinus node dysfunction
    Non-paced third degree atrioventricular block
    Prinzmetal's angina
    Raynaud's syndrome
    Renal impairment - creatinine clearance below 10ml/minute
    Severe bradycardia
    Severe peripheral circulatory disorder
    Torsade de pointes
    Uncontrolled cardiac failure
    Uncontrolled phaeochromocytoma

    Precautions and Warnings

    Children under 18 years
    During surgery
    Family history of long QT syndrome
    Left ventricular ejection fraction value of 40% or less
    Upper respiratory tract infection
    Cardiac failure
    Diabetes mellitus
    Electrolyte imbalance
    First degree atrioventricular block
    Glucose-galactose malabsorption syndrome
    History of psoriasis
    History of torsade de pointes
    Ischaemic heart disease
    Lactose intolerance
    Myasthenia gravis
    Portal hypertension
    QTc interval greater than or equal to 500 msec
    Recent myocardial infarction
    Renal impairment - creatinine clearance 10-60ml/minute
    Severe diarrhoea

    Advise diabetic patients that hypoglycaemic symptoms may be reduced/altered
    Correct electrolyte disorders before treatment
    May mask symptoms of hyperthyroidism
    Reduce dose in patients with creatinine clearance of 10-60ml/min
    Advise ability to drive/operate machinery may be affected by side effects
    Contains lactose
    If QTc >550msec during therapy, consider alternative regimen
    Monitor acid-base balance
    Monitor antidiabetic drug treatment
    Monitor ECG in patients at risk of QT prolongation
    Monitor patients for signs and symptoms of cardiac failure
    Monitor renal function
    Monitor serum electrolytes
    Monitor serum potassium regularly
    Beta blockers may reduce the response to adrenaline in anaphylaxis
    May aggravate/provoke arrhythmias
    May exacerbate psoriasis
    May increase sensitivity to allergens
    Discontinue 4 days prior to surgery unless risk of angina/arrhythmia
    Do not withdraw this drug suddenly
    Possibly withdraw treatment if dry eyes and/or skin rash occur
    Not licensed for use in children under 18 years

    Do not discontinue suddenly, especially in patients with ischaemic heart disease, suspected thyrotoxicosis or hypertension. Decrease dose gradually over 1 to 2 weeks. Abrupt withdrawal may precipitate latent coronary insufficiency. Initiation of replacement therapy may be required.

    Pro-arrhythmic events may occur on initiation of therapy and with every dose increase.

    Avoid in patients with left ventricular ejection fractions less than or equal to 40% without serious ventricular arrhythmias.

    Sotalol should be stopped four days prior to surgery. However, where withdrawal may cause severe angina or arrhythmias, the following precautions can be taken to allow anaesthesia to proceed:
    i) Vagal dominance is counteracted by premedication with intravenously administered atropine sulfate.
    ii) Anaesthetic agents such as ether, chloroform, cyclopropane, trichloroethylene, methoxyflurane and enflurane are not used.

    Pregnancy and Lactation


    Use sotalol with caution in pregnancy.

    The manufacturer notes that this medication should only be considered if the expected benefit to the mother is greater than any risk to the foetus and that the neonate should be monitored for 48 to 72 hours after delivery if the maternal therapy with this medication could not be interrupted two to three days before the birth date.

    The is limited data on the use of sotalol in pregnancy, especially in the first trimester, but there appears to be low risk.

    Foetal growth restriction has not been reported. Typically, for beta blockers without intrinsic sympathomimetic activity (ISA), such as sotalol, continuous treatment beginning early in the second trimester results in the greatest weight reductions, whereas treatment restricted to the third trimester primarily affects only placental weight (Briggs, 2015).

    The use of all medication in pregnancy should be avoided whenever possible; particularly in the first trimester. Non-drug treatments should also be considered. When essential, a medication with the best safety record over time should be chosen, employing the lowest effective dose for the shortest possible time. Polypharmacy should be avoided. Teratogens taken in the pre-embryonic period, often quoted as lasting until 14 to 17 days post-conception, are believed to have an all-or-nothing effect. Where drugs have a short half-life, and when the date of conception is certain, this may allow women to be reassured where drug exposure has occurred within this time frame. Further advice may be available from the UK National Teratology Information Service (NTIS) and through ToxBase, available via password on the internet ( ) or if this is unavailable at the backup site ( ).


    Sotalol is contraindicated in breastfeeding.

    Sotalol is secreted into milk in high levels.

    Neonates, infants born prematurely, those with low birth weight, those with an unstable gastrointestinal function or who have serious illnesses may require special consideration. For any infant, if a drug is prescribed to the nursing mother, it should be at the lowest practical dose and for the shortest time. When drug administration is unavoidable and breastfeeding is to continue, minimisation of exposure of the infant to the drug may sometimes be achieved by timing the maternal doses to just after a feeding episode. Infants exposed to drugs via breast milk should be monitored for unusual signs or symptoms. Interactions between the drug received by the infant from the mother's milk and medication prescribed for the infant should also be considered, for example, when the drug given to the infant may prevent metabolism of the drug received via breast milk.
    Specialist advice is available from the UK Drugs in Lactation Advisory Service at

    Side Effects

    Abdominal pain
    AV conduction disorders
    Cardiac failure
    Chest pain
    Cold extremities
    Cyanosis of extremities
    Dry eyes
    ECG changes
    Exacerbation of psoriasis
    Hearing disturbances
    Increase in antinuclear antibodies (ANA)
    Intermittent claudication
    Lacrimation disorder
    Mood changes
    Pro-arrhythmic effects
    Raynaud's phenomenon
    Sexual dysfunction
    Sleep disturbances
    Taste disturbances
    Torsades de pointes
    Visual disturbances


    It is strongly recommended that the UK National Poisons Information Service be consulted on cases of suspected or actual overdose where there is doubt over the degree of risk or about appropriate management.

    The following number will direct the caller to the relevant local centre (0844) 892 0111

    Information may be obtained if you have access to ToxBase the primary clinical toxicology database of the National Poisons Information Service. This is available via password on the internet ( ) or if this is unavailable at the backup site ( ).

    Further Information

    Last Full Review Date: September 2018

    Reference Sources

    Drugs in Pregnancy and Lactation: A Reference Guide to Fetal and Neonatal Risk, 10th edition (2015) ed. Briggs, G., Freeman, R. Wolters Kluwer Health, Philadelphia.

    Medications and Mothers' Milk, Sixteenth Edition (2014) Hale, T and Rowe, H, Hale Publishing, Plano, Texas.

    Summary of Product Characteristics: Beta-Cardone Tablets 200mg. Focus Pharmaceuticals Ltd. Revised August 2010.

    Summary of Product Characteristics: Sotacor tablets. Cheplapharm Arzneimittel GmbH. Revised August 2018.

    NICE Evidence Services Available at: Last accessed: 19 September 2018

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