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Drug interactions

Guselkumab + Ifosfamide

Severity: Moderate

Guselkumab and Ifosfamide: 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, while guselkumab modulates immune responses via IL-23 inhibition. Together they could raise the risk of infection.

What this interaction means in plain words

Guselkumab and Ifosfamide 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.

Guselkumab belongs to Miscellaneous; Ifosfamide belongs to Oncology.

Evidence level: Low

Why it happens

Additive immunosuppression.

What to do

Monitor for signs of infection and consider holding guselkumab during myelosuppressive chemotherapy.

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 Guselkumab with Ifosfamide?

MediHelp rates the interaction as moderate. Guselkumab and Ifosfamide 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, while guselkumab modulates immune responses via IL-23 inhibition. Together they could raise the risk of infection.

How serious is the interaction between Guselkumab and Ifosfamide?

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 for signs of infection and consider holding guselkumab during myelosuppressive chemotherapy.

What other medicines interact with Ifosfamide?

MediHelp also lists interactions of Ifosfamide with, for example, Adenovirus types 4 and 7 live, Measles mumps and rubella vaccine, Measles mumps and rubella vaccine live. The full list is on the Ifosfamide 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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