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Drug interactions

Ifosfamide + Ustekinumab

Severity: Moderate

Ifosfamide and Ustekinumab: 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

Ifosfamide causes myelosuppression and immunosuppression, which may add to the immune modulation from ustekinumab. This may increase the risk of infection.

What this interaction means in plain words

Ifosfamide and Ustekinumab 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.

Ifosfamide belongs to Oncology; Ustekinumab belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive immunosuppression from cytotoxic chemotherapy and cytokine blockade.

What to do

Monitor blood counts and for infection during chemotherapy. Consider holding ustekinumab during severe neutropenia.

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 Ifosfamide with Ustekinumab?

MediHelp rates the interaction as moderate. Ifosfamide and Ustekinumab 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. Ifosfamide causes myelosuppression and immunosuppression, which may add to the immune modulation from ustekinumab. This may increase the risk of infection.

How serious is the interaction between Ifosfamide and Ustekinumab?

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 counts and for infection during chemotherapy. Consider holding ustekinumab during severe neutropenia.

What other medicines interact with Ustekinumab?

MediHelp also lists interactions of Ustekinumab with, for example, Bcg vaccine live, Typhoid vaccine live, Adalimumab. The full list is on the Ustekinumab page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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