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Drug interactions

Atazanavir + Repaglinide

Severity: Moderate

Atazanavir and Repaglinide: 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

Atazanavir inhibits CYP3A4 and may increase repaglinide concentrations, raising the risk of hypoglycemia. Ritonavir or cobicistat boosting may add to the effect.

What this interaction means in plain words

Atazanavir and Repaglinide 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.

Atazanavir belongs to Anti Virals; Repaglinide belongs to Endocrine.

Evidence level: Moderate

Why it happens

Inhibition of CYP3A4 by atazanavir reduces repaglinide metabolism.

What to do

Monitor blood glucose closely and use a lower repaglinide dose if hypoglycemia occurs when atazanavir is started.

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 Atazanavir with Repaglinide?

MediHelp rates the interaction as moderate. Atazanavir and Repaglinide 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. Atazanavir inhibits CYP3A4 and may increase repaglinide concentrations, raising the risk of hypoglycemia. Ritonavir or cobicistat boosting may add to the effect.

How serious is the interaction between Atazanavir and Repaglinide?

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 blood glucose closely and use a lower repaglinide dose if hypoglycemia occurs when atazanavir is started.

What other medicines interact with Repaglinide?

MediHelp also lists interactions of Repaglinide with, for example, Gemfibrozil, Clarithromycin, Clopidogrel. The full list is on the Repaglinide page.

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

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