Drug interactions
Budesonide + Nirmatrelvir
Severity: Moderate
Budesonide and Nirmatrelvir: 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
Nirmatrelvir inhibits CYP3A4 and can increase budesonide exposure. Higher levels raise the risk of systemic corticosteroid effects including Cushing syndrome and adrenal suppression with prolonged coadministration.
What this interaction means in plain words
Budesonide and Nirmatrelvir 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.
Budesonide belongs to Respiratory; Nirmatrelvir belongs to Anti Virals.
Why it happens
Nirmatrelvir inhibits CYP3A4, decreasing budesonide metabolism.
What to do
For short courses, monitor for corticosteroid adverse effects; if long-term use is needed, consider an alternative such as beclomethasone or prednisolone.
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 Budesonide
Other interactions of Nirmatrelvir
- Alfuzosin + Nirmatrelvir Contraindicated
- Amiodarone + Nirmatrelvir Contraindicated
- Apalutamide + Nirmatrelvir Contraindicated
- Carbamazepine + Nirmatrelvir Contraindicated
- Colchicine + Nirmatrelvir Contraindicated
- Dronedarone + Nirmatrelvir Contraindicated
Frequently asked questions
Can I take Budesonide with Nirmatrelvir?
MediHelp rates the interaction as moderate. Budesonide and Nirmatrelvir 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. Nirmatrelvir inhibits CYP3A4 and can increase budesonide exposure. Higher levels raise the risk of systemic corticosteroid effects including Cushing syndrome and adrenal suppression with prolonged coadministration.
How serious is the interaction between Budesonide and Nirmatrelvir?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: For short courses, monitor for corticosteroid adverse effects; if long-term use is needed, consider an alternative such as beclomethasone or prednisolone.
What other medicines interact with Budesonide?
MediHelp also lists interactions of Budesonide with, for example, Aldesleukin, Atazanavir, Bcg vaccine live. The full list is on the Budesonide page.
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