Drug interactions
Dengue vaccine + Lomustine
Severity: Major
Dengue vaccine and Lomustine: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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
Dengue vaccine is a live attenuated vaccine. In patients receiving cytotoxic chemotherapy like lomustine, replication of the vaccine virus may cause disease and the immune response is reduced. Vaccination during therapy is therefore both risky and ineffective.
What this interaction means in plain words
Dengue vaccine and Lomustine 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.
Why it happens
Chemotherapy-induced immunosuppression reduces vaccine response and permits uncontrolled replication of live attenuated virus.
What to do
Avoid live vaccines during chemotherapy and until immune recovery, per vaccine labeling and local guidance. Consider vaccination before starting therapy when feasible.
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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References
Other interactions of Lomustine
- Adenovirus types 4 and 7 live + Lomustine Contraindicated
- Bcg vaccine live + Lomustine Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Lomustine Contraindicated
- Lomustine + Measles mumps and rubella vaccine Contraindicated
- Lomustine + Measles mumps and rubella vaccine live Contraindicated
- Lomustine + Measles mumps rubella and varicella vaccine live Contraindicated
Frequently asked questions
Can I take Dengue vaccine with Lomustine?
MediHelp rates the interaction as major. Dengue vaccine and Lomustine 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. Dengue vaccine is a live attenuated vaccine. In patients receiving cytotoxic chemotherapy like lomustine, replication of the vaccine virus may cause disease and the immune response is reduced. Vaccination during therapy is therefore both risky and ineffective.
How serious is the interaction between Dengue vaccine and Lomustine?
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 live vaccines during chemotherapy and until immune recovery, per vaccine labeling and local guidance. Consider vaccination before starting therapy when feasible.
What other medicines interact with Lomustine?
MediHelp also lists interactions of Lomustine with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Lomustine page.
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