Drug interactions
Fluorouracil + Ofatumumab sc
Severity: Moderate
Fluorouracil and Ofatumumab sc: 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
Ofatumumab depletes B cells and fluorouracil is myelosuppressive, so combining them may increase the risk of infections. Immune effects may persist after stopping either drug.
What this interaction means in plain words
Fluorouracil and Ofatumumab sc 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.
Why it happens
Additive immunosuppression from B-cell depletion and cytotoxic myelosuppression.
What to do
Monitor for infection and blood counts, and assess the need for ofatumumab while the patient is on chemotherapy. Consider the duration of immune effects when switching therapies.
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?
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Other interactions of Fluorouracil
Frequently asked questions
Can I take Fluorouracil with Ofatumumab sc?
MediHelp rates the interaction as moderate. Fluorouracil and Ofatumumab sc 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. Ofatumumab depletes B cells and fluorouracil is myelosuppressive, so combining them may increase the risk of infections. Immune effects may persist after stopping either drug.
How serious is the interaction between Fluorouracil and Ofatumumab sc?
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 infection and blood counts, and assess the need for ofatumumab while the patient is on chemotherapy. Consider the duration of immune effects when switching therapies.
What other medicines interact with Fluorouracil?
MediHelp also lists interactions of Fluorouracil with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Fluorouracil page.
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