Drug interactions
Hepatitis a / b vaccine + Sirolimus
Severity: Moderate
Hepatitis a / b vaccine and Sirolimus: 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
Sirolimus may reduce the antibody response to this inactivated vaccine, so protection may be inadequate. There is no risk of vaccine-related infection.
What this interaction means in plain words
Hepatitis a / b vaccine and Sirolimus 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
Sirolimus immunosuppression impairs antibody production after vaccination.
What to do
Vaccinate before immunosuppression when possible; otherwise check anti-HBs and anti-HAV titers after the series and revaccinate if needed.
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 Sirolimus
- Adenovirus types 4 and 7 live + Sirolimus Contraindicated
- Bcg vaccine live + Sirolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Sirolimus Contraindicated
- Ketoconazole + Sirolimus Contraindicated
- Levoketoconazole + Sirolimus Contraindicated
- Measles mumps and rubella vaccine live + Sirolimus Contraindicated
Frequently asked questions
Can I take Hepatitis a / b vaccine with Sirolimus?
MediHelp rates the interaction as moderate. Hepatitis a / b vaccine and Sirolimus 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. Sirolimus may reduce the antibody response to this inactivated vaccine, so protection may be inadequate. There is no risk of vaccine-related infection.
How serious is the interaction between Hepatitis a / b vaccine and Sirolimus?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Vaccinate before immunosuppression when possible; otherwise check anti-HBs and anti-HAV titers after the series and revaccinate if needed.
What other medicines interact with Sirolimus?
MediHelp also lists interactions of Sirolimus with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Sirolimus page.
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