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Drug interactions

Amifampridine + Levofloxacin

Severity: Moderate

Amifampridine and Levofloxacin: 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

Amifampridine causes dose-related seizures, and levofloxacin can also lower the seizure threshold. Using both together may increase the likelihood of a seizure.

What this interaction means in plain words

Amifampridine and Levofloxacin 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.

Amifampridine belongs to Central Nervous System; Levofloxacin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Additive lowering of seizure threshold through separate pharmacodynamic effects.

What to do

Use the lowest effective amifampridine dose, or choose a non-quinolone antibiotic if possible. Monitor for neurological signs of seizure activity during co-therapy.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amifampridine with Levofloxacin?

MediHelp rates the interaction as moderate. Amifampridine and Levofloxacin 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. Amifampridine causes dose-related seizures, and levofloxacin can also lower the seizure threshold. Using both together may increase the likelihood of a seizure.

How serious is the interaction between Amifampridine and Levofloxacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective amifampridine dose, or choose a non-quinolone antibiotic if possible. Monitor for neurological signs of seizure activity during co-therapy.

What other medicines interact with Levofloxacin?

MediHelp also lists interactions of Levofloxacin with, for example, Dronedarone, Ibutilide, Thioridazine. The full list is on the Levofloxacin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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