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Drug interactions

Amifampridine + Ciprofloxacin

Severity: Moderate

Amifampridine and Ciprofloxacin: 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 fluoroquinolones such as ciprofloxacin can lower seizure threshold. Combining them may increase seizure risk, particularly in patients with epilepsy or renal impairment.

What this interaction means in plain words

Amifampridine and Ciprofloxacin 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; Ciprofloxacin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Additive pharmacodynamic lowering of the seizure threshold (GABA antagonism by fluoroquinolones plus potassium channel blockade by amifampridine).

What to do

Use an alternative antibiotic if possible. If combined, use the lowest effective amifampridine dose and monitor for neurological symptoms or seizures.

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 Ciprofloxacin?

MediHelp rates the interaction as moderate. Amifampridine and Ciprofloxacin 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 fluoroquinolones such as ciprofloxacin can lower seizure threshold. Combining them may increase seizure risk, particularly in patients with epilepsy or renal impairment.

How serious is the interaction between Amifampridine and Ciprofloxacin?

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 an alternative antibiotic if possible. If combined, use the lowest effective amifampridine dose and monitor for neurological symptoms or seizures.

What other medicines interact with Ciprofloxacin?

MediHelp also lists interactions of Ciprofloxacin with, for example, Agomelatine, Fezolinetant, Thioridazine. The full list is on the Ciprofloxacin page.

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

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