Drug interactions
Disopyramide + Sotalol
Severity: Contraindicated
Disopyramide and Sotalol: contraindicated interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both agents prolong repolarization, and disopyramide also has negative inotropic effects. Combined use substantially raises the risk of torsades de pointes and heart failure worsening.
What this interaction means in plain words
Disopyramide and Sotalol are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Disopyramide belongs to Cardiovascular; Sotalol belongs to Cardiovascular.
Why it happens
Additive QT prolongation and additive negative inotropic effect.
What to do
Avoid combining class Ia and class III antiarrhythmics; choose one agent and monitor ECG closely during any transition.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Sotalol
- Arsenic trioxide + Sotalol Contraindicated
- Artemether / lumefantrine + Sotalol Contraindicated
- Dofetilide + Sotalol Contraindicated
- Dronedarone + Sotalol Contraindicated
- Droperidol + Sotalol Contraindicated
- Eliglustat + Sotalol Contraindicated
Other interactions of Disopyramide
- Amisulpride + Disopyramide Contraindicated
- Desipramine + Disopyramide Contraindicated
- Disopyramide + Dronedarone Contraindicated
- Disopyramide + Itraconazole Contraindicated
- Disopyramide + Ketoconazole Contraindicated
- Disopyramide + Maprotiline Contraindicated
Frequently asked questions
Can I take Disopyramide with Sotalol?
MediHelp rates the interaction as contraindicated. Disopyramide and Sotalol are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Both agents prolong repolarization, and disopyramide also has negative inotropic effects. Combined use substantially raises the risk of torsades de pointes and heart failure worsening.
How serious is the interaction between Disopyramide and Sotalol?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining class Ia and class III antiarrhythmics; choose one agent and monitor ECG closely during any transition.
What other medicines interact with Sotalol?
MediHelp also lists interactions of Sotalol with, for example, Arsenic trioxide, Artemether / lumefantrine, Dofetilide. The full list is on the Sotalol page.
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