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Drug interactions

Ivosidenib + Lansoprazole

Severity: Minor

Ivosidenib and Lansoprazole: 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

Ivosidenib induces CYP3A4 and may lower concentrations of lansoprazole, which is partly metabolised by this enzyme. Since CYP2C19 is the main pathway and lansoprazole is dose-titratable, the effect is usually small.

What this interaction means in plain words

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

Ivosidenib belongs to Oncology; Lansoprazole belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Ivosidenib induction of CYP3A4 increases lansoprazole clearance.

What to do

No empirical change is needed; watch for reduced acid suppression and increase the PPI dose if symptoms recur.

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 Ivosidenib with Lansoprazole?

MediHelp rates the interaction as minor. Ivosidenib and Lansoprazole have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ivosidenib induces CYP3A4 and may lower concentrations of lansoprazole, which is partly metabolised by this enzyme. Since CYP2C19 is the main pathway and lansoprazole is dose-titratable, the effect is usually small.

How serious is the interaction between Ivosidenib and Lansoprazole?

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 empirical change is needed; watch for reduced acid suppression and increase the PPI dose if symptoms recur.

What other medicines interact with Lansoprazole?

MediHelp also lists interactions of Lansoprazole with, for example, Mavacamten, Rilpivirine, Acalabrutinib. The full list is on the Lansoprazole page.

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