Drug interactions
Ofatumumab sc + Temozolomide
Severity: Moderate
Ofatumumab sc and Temozolomide: 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
Temozolomide causes myelosuppression and lymphopenia, while ofatumumab depletes B cells. Used together, the additive effects on immune function may raise the risk of serious or opportunistic infections.
What this interaction means in plain words
Ofatumumab sc and Temozolomide 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 pharmacodynamic immunosuppression from cytotoxic lymphopenia and anti-CD20 B-cell depletion.
What to do
Monitor blood counts and for signs of infection during combined therapy. Consider prophylaxis against opportunistic infections (e.g., Pneumocystis) when lymphopenia is prolonged.
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 Temozolomide
Frequently asked questions
Can I take Ofatumumab sc with Temozolomide?
MediHelp rates the interaction as moderate. Ofatumumab sc and Temozolomide 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. Temozolomide causes myelosuppression and lymphopenia, while ofatumumab depletes B cells. Used together, the additive effects on immune function may raise the risk of serious or opportunistic infections.
How serious is the interaction between Ofatumumab sc and Temozolomide?
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 signs of infection during combined therapy. Consider prophylaxis against opportunistic infections (e.g., Pneumocystis) when lymphopenia is prolonged.
What other medicines interact with Temozolomide?
MediHelp also lists interactions of Temozolomide with, for example, Adenovirus types 4 and 7 live, Belatacept, Deferiprone. The full list is on the Temozolomide page.
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