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Drug interactions

Aprepitant + Cinacalcet

Severity: Minor

Aprepitant and Cinacalcet: 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

Cinacalcet is metabolized by CYP3A4, CYP2D6 and CYP1A2. Aprepitant may modestly increase cinacalcet levels, which could add to nausea, vomiting and hypocalcemia.

What this interaction means in plain words

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

Aprepitant belongs to Gastrointestinal Tract; Cinacalcet belongs to Miscellaneous.

Evidence level: Low

Why it happens

Aprepitant inhibits CYP3A4, one of several pathways of cinacalcet metabolism.

What to do

No dose change is generally required. Monitor serum calcium and gastrointestinal symptoms.

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 Aprepitant with Cinacalcet?

MediHelp rates the interaction as minor. Aprepitant and Cinacalcet have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Cinacalcet is metabolized by CYP3A4, CYP2D6 and CYP1A2. Aprepitant may modestly increase cinacalcet levels, which could add to nausea, vomiting and hypocalcemia.

How serious is the interaction between Aprepitant and Cinacalcet?

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 change is generally required. Monitor serum calcium and gastrointestinal symptoms.

What other medicines interact with Aprepitant?

MediHelp also lists interactions of Aprepitant with, for example, Lomitapide, Pimozide, Avapritinib. The full list is on the Aprepitant page.

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

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