Skip to content

Drug interactions

Ifosfamide + Pegfilgrastim

Severity: Moderate

Ifosfamide and Pegfilgrastim: 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

Pegfilgrastim sensitizes rapidly dividing myeloid precursors to cytotoxic drugs, so giving it around the time of ifosfamide may increase marrow toxicity and reduce its benefit. Its long-acting nature makes timing important.

What this interaction means in plain words

Ifosfamide and Pegfilgrastim 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; Pegfilgrastim belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Growth factor-induced proliferation of myeloid progenitors increases their susceptibility to cytotoxic chemotherapy.

What to do

Give pegfilgrastim no sooner than 24 hours after completing ifosfamide, and not within 14 days before the next chemotherapy cycle. Monitor blood counts.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Ifosfamide and Pegfilgrastim, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Ifosfamide with Pegfilgrastim?

MediHelp rates the interaction as moderate. Ifosfamide and Pegfilgrastim 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. Pegfilgrastim sensitizes rapidly dividing myeloid precursors to cytotoxic drugs, so giving it around the time of ifosfamide may increase marrow toxicity and reduce its benefit. Its long-acting nature makes timing important.

How serious is the interaction between Ifosfamide and Pegfilgrastim?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give pegfilgrastim no sooner than 24 hours after completing ifosfamide, and not within 14 days before the next chemotherapy cycle. Monitor blood counts.

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.

Browse A–Z · Drug interactions

Get the app Sign in