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Drug interactions

Cholera vaccine + Leflunomide

Severity: Moderate

Cholera vaccine and Leflunomide: 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

Leflunomide can blunt the immune response to vaccines. An oral cholera vaccine may give weaker protection in treated patients. The vaccine in question is generally non-live, so safety concerns are limited.

What this interaction means in plain words

Cholera vaccine and Leflunomide 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: Low

Why it happens

Leflunomide's immunosuppressive inhibition of lymphocyte proliferation reduces vaccine antibody responses.

What to do

If feasible, vaccinate before starting leflunomide. Otherwise vaccinate and consider checking response or revaccinating if protection is important.

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 Leflunomide?

MediHelp rates the interaction as moderate. Cholera vaccine and Leflunomide 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. Leflunomide can blunt the immune response to vaccines. An oral cholera vaccine may give weaker protection in treated patients. The vaccine in question is generally non-live, so safety concerns are limited.

How serious is the interaction between Cholera vaccine and Leflunomide?

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 feasible, vaccinate before starting leflunomide. Otherwise vaccinate and consider checking response or revaccinating if protection is important.

What other medicines interact with Leflunomide?

MediHelp also lists interactions of Leflunomide with, for example, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal, Measles mumps and rubella vaccine live. The full list is on the Leflunomide page.

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