Drug interactions
Fingolimod + Gemifloxacin
Severity: Major
Fingolimod and Gemifloxacin: 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
Both drugs can prolong the QT interval, and fingolimod also causes bradycardia, which is a risk factor for torsades de pointes. Combined use may raise the likelihood of a serious ventricular arrhythmia, particularly at treatment initiation.
What this interaction means in plain words
Fingolimod and Gemifloxacin 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.
Fingolimod belongs to Central Nervous System; Gemifloxacin belongs to Anti Bacterial.
Why it happens
Additive QT prolongation (fluoroquinolone hERG blockade plus fingolimod-related bradycardia and QT effects).
What to do
Avoid the combination where an alternative antibiotic exists. If it is unavoidable, obtain a baseline ECG, correct potassium and magnesium, and monitor ECG and heart rate.
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 Fingolimod
- Adenovirus types 4 and 7 live + Fingolimod Contraindicated
- Bcg vaccine live + Fingolimod Contraindicated
- Fingolimod + Pimozide Contraindicated
- Fingolimod + Ponesimod Contraindicated
- Fingolimod + Quinidine Contraindicated
- Fingolimod + Siponimod Contraindicated
Frequently asked questions
Can I take Fingolimod with Gemifloxacin?
MediHelp rates the interaction as major. Fingolimod and Gemifloxacin 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. Both drugs can prolong the QT interval, and fingolimod also causes bradycardia, which is a risk factor for torsades de pointes. Combined use may raise the likelihood of a serious ventricular arrhythmia, particularly at treatment initiation.
How serious is the interaction between Fingolimod and Gemifloxacin?
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 where an alternative antibiotic exists. If it is unavoidable, obtain a baseline ECG, correct potassium and magnesium, and monitor ECG and heart rate.
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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