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Drug interactions

Cholera vaccine + Topotecan

Severity: Moderate

Cholera vaccine and Topotecan: 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

Cytotoxic chemotherapy such as topotecan suppresses bone marrow and immune function, which may blunt the antibody response to the cholera vaccine. The patient may therefore have inadequate protection.

What this interaction means in plain words

Cholera vaccine and Topotecan 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.

Evidence level: Moderate

Why it happens

Topotecan-induced myelosuppression and immunosuppression reduce the immune response to vaccination.

What to do

If possible, complete vaccination at least 2 weeks before chemotherapy or delay it until immune recovery after treatment. Do not rely on the vaccine for protection during chemotherapy.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cholera vaccine with Topotecan?

MediHelp rates the interaction as moderate. Cholera vaccine and Topotecan 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. Cytotoxic chemotherapy such as topotecan suppresses bone marrow and immune function, which may blunt the antibody response to the cholera vaccine. The patient may therefore have inadequate protection.

How serious is the interaction between Cholera vaccine and Topotecan?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: If possible, complete vaccination at least 2 weeks before chemotherapy or delay it until immune recovery after treatment. Do not rely on the vaccine for protection during chemotherapy.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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