Drug interactions
Lomustine + Triamcinolone acetonide extended-release injectable
Severity: Moderate
Lomustine and Triamcinolone acetonide extended-release injectable: 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
Lomustine causes myelosuppression and immune suppression, and corticosteroids impair cell-mediated immunity. Together they increase the risk of infections, including opportunistic ones. The extended-release depot keeps steroid exposure going for weeks, so the effect cannot be quickly withdrawn.
What this interaction means in plain words
Lomustine and Triamcinolone acetonide extended-release injectable 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
Additive immunosuppression from cytotoxic myelosuppression and glucocorticoid effects on lymphocyte and neutrophil function.
What to do
Weigh the need for depot steroid during chemotherapy and monitor for signs of infection and neutrophil counts. Treat fever promptly and consider alternatives with shorter duration if infection risk is high.
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 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 Lomustine with Triamcinolone acetonide extended-release injectable?
MediHelp rates the interaction as moderate. Lomustine and Triamcinolone acetonide extended-release injectable 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. Lomustine causes myelosuppression and immune suppression, and corticosteroids impair cell-mediated immunity. Together they increase the risk of infections, including opportunistic ones. The extended-release depot keeps steroid exposure going for weeks, so the effect cannot be quickly withdrawn.
How serious is the interaction between Lomustine and Triamcinolone acetonide extended-release injectable?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Weigh the need for depot steroid during chemotherapy and monitor for signs of infection and neutrophil counts. Treat fever promptly and consider alternatives with shorter duration if infection risk is high.
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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