Drug interactions
Ofatumumab sc + Vinblastine
Severity: Moderate
Ofatumumab sc and Vinblastine: 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
Both agents impair immune function, so combining them may increase the risk of infections. Ofatumumab depletes B cells while vinblastine causes myelosuppression.
What this interaction means in plain words
Ofatumumab sc and Vinblastine 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 bone marrow suppression.
What to do
Monitor for infection and check blood counts and immunoglobulins, and screen for hepatitis B before starting ofatumumab. Consider the persistence of immune effects when sequencing 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 Vinblastine
Frequently asked questions
Can I take Ofatumumab sc with Vinblastine?
MediHelp rates the interaction as moderate. Ofatumumab sc and Vinblastine 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. Both agents impair immune function, so combining them may increase the risk of infections. Ofatumumab depletes B cells while vinblastine causes myelosuppression.
How serious is the interaction between Ofatumumab sc and Vinblastine?
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 check blood counts and immunoglobulins, and screen for hepatitis B before starting ofatumumab. Consider the persistence of immune effects when sequencing therapies.
What other medicines interact with Vinblastine?
MediHelp also lists interactions of Vinblastine with, for example, Adenovirus types 4 and 7 live, Apalutamide, Atazanavir. The full list is on the Vinblastine page.
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