Drug interactions
Eliglustat + Gemifloxacin
Severity: Major
Eliglustat 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 eliglustat exposure rises markedly in patients with reduced CYP2D6 metabolism or on CYP inhibitors. Concurrent use may increase the risk of serious ventricular arrhythmia.
What this interaction means in plain words
Eliglustat 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.
Eliglustat belongs to Miscellaneous; Gemifloxacin belongs to Anti Bacterial.
Why it happens
Additive QT prolongation, with eliglustat prolonging the interval at higher plasma concentrations.
What to do
Avoid the combination where possible, especially in CYP2D6 poor metabolizers or with CYP inhibitors. If used, get a baseline and follow-up ECG and correct electrolytes.
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 Eliglustat
- Amiodarone + Eliglustat Contraindicated
- Clarithromycin + Eliglustat Contraindicated
- Dronedarone + Eliglustat Contraindicated
- Eliglustat + Itraconazole Contraindicated
- Eliglustat + Ketoconazole Contraindicated
- Eliglustat + Pimozide Contraindicated
Frequently asked questions
Can I take Eliglustat with Gemifloxacin?
MediHelp rates the interaction as major. Eliglustat 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 eliglustat exposure rises markedly in patients with reduced CYP2D6 metabolism or on CYP inhibitors. Concurrent use may increase the risk of serious ventricular arrhythmia.
How serious is the interaction between Eliglustat 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 possible, especially in CYP2D6 poor metabolizers or with CYP inhibitors. If used, get a baseline and follow-up ECG and correct electrolytes.
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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