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Drug interactions

Amifampridine + Clozapine

Severity: Moderate

Amifampridine and Clozapine: 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 carries a dose-related seizure risk, and clozapine itself lowers the seizure threshold in a dose-dependent manner. Combined use may increase the chance of seizures.

What this interaction means in plain words

Amifampridine and Clozapine 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; Clozapine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive lowering of seizure threshold through pharmacodynamic effects.

What to do

Use the lowest effective doses and monitor for seizure activity, particularly with higher clozapine doses or a history of epilepsy. Consider an alternative if seizures occur.

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 Clozapine?

MediHelp rates the interaction as moderate. Amifampridine and Clozapine 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 carries a dose-related seizure risk, and clozapine itself lowers the seizure threshold in a dose-dependent manner. Combined use may increase the chance of seizures.

How serious is the interaction between Amifampridine and Clozapine?

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 doses and monitor for seizure activity, particularly with higher clozapine doses or a history of epilepsy. Consider an alternative if seizures occur.

What other medicines interact with Clozapine?

MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine page.

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

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