Drug interactions
Gemifloxacin + Sotalol
Severity: Major
Gemifloxacin and Sotalol: major 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
Sotalol is a class III antiarrhythmic with a clear dose-related risk of QT prolongation and torsades de pointes. Adding gemifloxacin increases that risk further.
What this interaction means in plain words
Gemifloxacin and Sotalol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Gemifloxacin belongs to Anti Bacterial; Sotalol belongs to Cardiovascular.
Why it happens
Additive blockade of cardiac potassium channels, which prolongs repolarization.
What to do
Avoid the combination and choose an antibiotic without QT effects. If it cannot be avoided, monitor the ECG and keep potassium and magnesium within normal range.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Gemifloxacin
- Arsenic trioxide + Gemifloxacin Contraindicated
- Dofetilide + Gemifloxacin Contraindicated
- Gemifloxacin + Ibutilide Contraindicated
- Gemifloxacin + Pimozide Contraindicated
- Gemifloxacin + Thioridazine Contraindicated
- Gemifloxacin + Vandetanib Contraindicated
Other interactions of Sotalol
- Arsenic trioxide + Sotalol Contraindicated
- Artemether / lumefantrine + Sotalol Contraindicated
- Disopyramide + Sotalol Contraindicated
- Dofetilide + Sotalol Contraindicated
- Dronedarone + Sotalol Contraindicated
- Droperidol + Sotalol Contraindicated
Frequently asked questions
Can I take Gemifloxacin with Sotalol?
MediHelp rates the interaction as major. Gemifloxacin and Sotalol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Sotalol is a class III antiarrhythmic with a clear dose-related risk of QT prolongation and torsades de pointes. Adding gemifloxacin increases that risk further.
How serious is the interaction between Gemifloxacin and Sotalol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and choose an antibiotic without QT effects. If it cannot be avoided, monitor the ECG and keep potassium and magnesium within normal range.
What other medicines interact with Gemifloxacin?
MediHelp also lists interactions of Gemifloxacin with, for example, Arsenic trioxide, Dofetilide, Ibutilide. The full list is on the Gemifloxacin page.
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