Drug interactions
Chlorambucil + Cholera vaccine
Severity: Moderate
Chlorambucil and Cholera vaccine: 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
Chlorambucil suppresses bone marrow and lymphoid function, which can blunt the antibody response to cholera vaccine. Protection may therefore be incomplete in treated patients. The vaccine is oral and live-attenuated in some formulations, so replication in immunosuppressed patients is also a theoretical concern.
What this interaction means in plain words
Chlorambucil and Cholera vaccine 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
Cytotoxic immunosuppression by the alkylating agent reduces the vaccine-induced immune response.
What to do
Where possible, vaccinate at least 2 weeks before starting chlorambucil, and do not rely on the vaccine alone for protection. Reassess immunity or revaccinate after immune recovery, and reinforce food and water precautions.
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 Chlorambucil
Frequently asked questions
Can I take Chlorambucil with Cholera vaccine?
MediHelp rates the interaction as moderate. Chlorambucil and Cholera vaccine 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. Chlorambucil suppresses bone marrow and lymphoid function, which can blunt the antibody response to cholera vaccine. Protection may therefore be incomplete in treated patients. The vaccine is oral and live-attenuated in some formulations, so replication in immunosuppressed patients is also a theoretical concern.
How serious is the interaction between Chlorambucil and Cholera vaccine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Where possible, vaccinate at least 2 weeks before starting chlorambucil, and do not rely on the vaccine alone for protection. Reassess immunity or revaccinate after immune recovery, and reinforce food and water precautions.
What other medicines interact with Chlorambucil?
MediHelp also lists interactions of Chlorambucil with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Chlorambucil page.
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