Drug interactions
Budesonide + Conivaptan
Severity: Moderate
Budesonide and Conivaptan: 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
Conivaptan is a CYP3A4 inhibitor and may raise budesonide exposure, increasing systemic corticosteroid effects. Conivaptan is used short-term in hospital, which limits the duration of exposure.
What this interaction means in plain words
Budesonide and Conivaptan 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
Inhibition of CYP3A4 by conivaptan reduces budesonide metabolism.
What to do
Monitor for systemic corticosteroid effects such as hyperglycemia and fluid or electrolyte changes during the short conivaptan course, and consider reducing budesonide dose if prolonged.
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
Frequently asked questions
Can I take Budesonide with Conivaptan?
MediHelp rates the interaction as moderate. Budesonide and Conivaptan 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. Conivaptan is a CYP3A4 inhibitor and may raise budesonide exposure, increasing systemic corticosteroid effects. Conivaptan is used short-term in hospital, which limits the duration of exposure.
How serious is the interaction between Budesonide and Conivaptan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for systemic corticosteroid effects such as hyperglycemia and fluid or electrolyte changes during the short conivaptan course, and consider reducing budesonide dose if prolonged.
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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