Drug interactions
Lopinavir + Topotecan
Severity: Major
Lopinavir and Topotecan: major 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
Lopinavir, co-formulated with ritonavir, inhibits P-gp and may increase topotecan exposure and hematologic toxicity.
What this interaction means in plain words
Lopinavir and Topotecan can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Lopinavir belongs to Anti Virals; Topotecan belongs to Oncology.
Why it happens
Lopinavir/ritonavir inhibits P-gp and BCRP efflux of topotecan.
What to do
Avoid with oral topotecan; with IV topotecan, monitor blood counts and reduce the dose if neutropenia develops.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Topotecan
- Adenovirus types 4 and 7 live + Topotecan Contraindicated
- Amiodarone + Topotecan Major
- Cisplatin + Topotecan Major
- Cobicistat + Topotecan Major
- Cyclosporine + Topotecan Major
- Cyclosporin + Topotecan Major
Other interactions of Lopinavir
- Alfuzosin + Lopinavir Contraindicated
- Avanafil + Lopinavir Contraindicated
- Cisapride + Lopinavir Contraindicated
- Dronedarone + Lopinavir Contraindicated
- Eletriptan + Lopinavir Contraindicated
- Eplerenone + Lopinavir Contraindicated
Frequently asked questions
Can I take Lopinavir with Topotecan?
MediHelp rates the interaction as major. Lopinavir and Topotecan can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Lopinavir, co-formulated with ritonavir, inhibits P-gp and may increase topotecan exposure and hematologic toxicity.
How serious is the interaction between Lopinavir and Topotecan?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid with oral topotecan; with IV topotecan, monitor blood counts and reduce the dose if neutropenia develops.
What other medicines interact with Topotecan?
MediHelp also lists interactions of Topotecan with, for example, Adenovirus types 4 and 7 live, Amiodarone, Cisplatin. The full list is on the Topotecan page.
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