Drug interactions
Clarithromycin + Tisotumab vedotin
Severity: Moderate
Clarithromycin and Tisotumab vedotin: 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
The cytotoxic payload MMAE from tisotumab vedotin is a CYP3A4 substrate. A strong inhibitor like clarithromycin may raise MMAE exposure and increase toxicity, including neuropathy, neutropenia and ocular effects.
What this interaction means in plain words
Clarithromycin and Tisotumab vedotin 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.
Clarithromycin belongs to Anti Bacterial; Tisotumab vedotin belongs to Oncology.
Why it happens
Clarithromycin inhibits CYP3A4 metabolism of MMAE.
What to do
Consider a non-CYP3A4-inhibiting antibiotic. If combined, monitor for adverse reactions of tisotumab vedotin.
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 Clarithromycin
- Astemizole + Clarithromycin Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Cisapride + Clarithromycin Contraindicated
- Clarithromycin + Colchicine Contraindicated
- Clarithromycin + Conivaptan Contraindicated
- Clarithromycin + Dihydroergotamine Contraindicated
Other interactions of Tisotumab vedotin
- Chloramphenicol + Tisotumab vedotin Moderate
- Itraconazole + Tisotumab vedotin Moderate
- Ketoconazole + Tisotumab vedotin Moderate
- Mifepristone + Tisotumab vedotin Moderate
- Posaconazole + Tisotumab vedotin Moderate
- Tisotumab vedotin + Voriconazole Moderate
Frequently asked questions
Can I take Clarithromycin with Tisotumab vedotin?
MediHelp rates the interaction as moderate. Clarithromycin and Tisotumab vedotin 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. The cytotoxic payload MMAE from tisotumab vedotin is a CYP3A4 substrate. A strong inhibitor like clarithromycin may raise MMAE exposure and increase toxicity, including neuropathy, neutropenia and ocular effects.
How serious is the interaction between Clarithromycin and Tisotumab vedotin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider a non-CYP3A4-inhibiting antibiotic. If combined, monitor for adverse reactions of tisotumab vedotin.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
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