Drug interactions
Ethotoin + Moxifloxacin
Severity: Moderate
Ethotoin and Moxifloxacin: moderate 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
Fluoroquinolones have been reported in isolated cases to alter phenytoin levels, and ethotoin is a related hydantoin, but no solid data exist for moxifloxacin. Both drugs may also lower seizure threshold or cause CNS effects, so an effect on seizure control cannot be excluded.
What this interaction means in plain words
Ethotoin and Moxifloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Mechanism is not established; extrapolated from case reports of quinolone effects on phenytoin and quinolone CNS excitation.
What to do
Monitor seizure control and consider checking anticonvulsant response if moxifloxacin is started in patients on ethotoin. Choose another antibiotic if seizures worsen.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Moxifloxacin
- Amiodarone + Moxifloxacin Contraindicated
- Arsenic trioxide + Moxifloxacin Contraindicated
- Disopyramide + Moxifloxacin Contraindicated
- Dofetilide + Moxifloxacin Contraindicated
- Dronedarone + Moxifloxacin Contraindicated
- Droperidol + Moxifloxacin Contraindicated
Frequently asked questions
Can I take Ethotoin with Moxifloxacin?
MediHelp rates the interaction as moderate. Ethotoin and Moxifloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Fluoroquinolones have been reported in isolated cases to alter phenytoin levels, and ethotoin is a related hydantoin, but no solid data exist for moxifloxacin. Both drugs may also lower seizure threshold or cause CNS effects, so an effect on seizure control cannot be excluded.
How serious is the interaction between Ethotoin and Moxifloxacin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor seizure control and consider checking anticonvulsant response if moxifloxacin is started in patients on ethotoin. Choose another antibiotic if seizures worsen.
What other medicines interact with Moxifloxacin?
MediHelp also lists interactions of Moxifloxacin with, for example, Amiodarone, Arsenic trioxide, Disopyramide. The full list is on the Moxifloxacin page.
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