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Drug interactions

Azathioprine + Benazepril

Severity: Moderate

Azathioprine and Benazepril: 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

ACE inhibitors have been associated with anemia and leukopenia when given with azathioprine, particularly in patients with renal impairment. The risk of severe myelosuppression may be increased.

What this interaction means in plain words

Azathioprine and Benazepril 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.

Azathioprine belongs to Gastrointestinal Tract; Benazepril belongs to Cardiovascular.

Evidence level: Low

Why it happens

Possible additive bone marrow suppression, as ACE inhibition may lower erythropoietin and affect marrow function.

What to do

Monitor complete blood counts regularly, especially at the start of therapy or after dose changes. Reduce azathioprine dose or stop either drug if leukopenia or anemia develops.

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 Azathioprine with Benazepril?

MediHelp rates the interaction as moderate. Azathioprine and Benazepril 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. ACE inhibitors have been associated with anemia and leukopenia when given with azathioprine, particularly in patients with renal impairment. The risk of severe myelosuppression may be increased.

How serious is the interaction between Azathioprine and Benazepril?

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 complete blood counts regularly, especially at the start of therapy or after dose changes. Reduce azathioprine dose or stop either drug if leukopenia or anemia develops.

What other medicines interact with Azathioprine?

MediHelp also lists interactions of Azathioprine with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Febuxostat. The full list is on the Azathioprine page.

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

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