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Drug interactions

Haloperidol + Ifosfamide

Severity: Minor

Haloperidol and Ifosfamide: minor 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

Ifosfamide is activated by CYP3A4 and CYP2B6, and haloperidol is a weak inhibitor of CYP3A4. Any reduction in activation would be small and the clinical effect is unlikely to matter.

What this interaction means in plain words

Haloperidol and Ifosfamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Haloperidol belongs to Central Nervous System; Ifosfamide belongs to Oncology.

Evidence level: Low

Why it happens

Possible weak CYP3A4 inhibition by haloperidol reducing conversion of ifosfamide to active metabolites.

What to do

No dose adjustment is usually needed. Monitor oncologic response and ifosfamide toxicity as part of routine care.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Haloperidol with Ifosfamide?

MediHelp rates the interaction as minor. Haloperidol and Ifosfamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ifosfamide is activated by CYP3A4 and CYP2B6, and haloperidol is a weak inhibitor of CYP3A4. Any reduction in activation would be small and the clinical effect is unlikely to matter.

How serious is the interaction between Haloperidol and Ifosfamide?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose adjustment is usually needed. Monitor oncologic response and ifosfamide toxicity as part of routine care.

What other medicines interact with Haloperidol?

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

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

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