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Drug interactions

Elacestrant + Haloperidol

Severity: Moderate

Elacestrant and Haloperidol: 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

Haloperidol is a CYP3A4 inhibitor of modest strength, so it may raise elacestrant exposure and increase its adverse effects such as nausea and dyslipidemia. The clinical significance is uncertain.

What this interaction means in plain words

Elacestrant and Haloperidol 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.

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

Evidence level: Low

Why it happens

Inhibition of CYP3A4-mediated metabolism of elacestrant by haloperidol, which is predicted to raise elacestrant concentrations.

What to do

Monitor for elacestrant adverse effects such as gastrointestinal intolerance and lipid changes. Consider an alternative antipsychotic if tolerability problems arise.

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 Elacestrant with Haloperidol?

MediHelp rates the interaction as moderate. Elacestrant and Haloperidol 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. Haloperidol is a CYP3A4 inhibitor of modest strength, so it may raise elacestrant exposure and increase its adverse effects such as nausea and dyslipidemia. The clinical significance is uncertain.

How serious is the interaction between Elacestrant and Haloperidol?

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 for elacestrant adverse effects such as gastrointestinal intolerance and lipid changes. Consider an alternative antipsychotic if tolerability problems arise.

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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