Drug interactions
Conivaptan + Methylprednisolone
Severity: Moderate
Conivaptan and Methylprednisolone: 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 methylprednisolone exposure. The reverse effect on conivaptan is not clinically established, and conivaptan is given only short term in hospital.
What this interaction means in plain words
Conivaptan and Methylprednisolone 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-mediated methylprednisolone metabolism by conivaptan.
What to do
Monitor for increased corticosteroid effects such as hyperglycemia and fluid retention during the short conivaptan infusion, and also monitor serum sodium as part of routine care.
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 Methylprednisolone
- Bcg vaccine live + Methylprednisolone Contraindicated
- Measles mumps and rubella vaccine live + Methylprednisolone Contraindicated
- Measles mumps rubella and varicella vaccine live + Methylprednisolone Contraindicated
- Measles vaccine + Methylprednisolone Contraindicated
- Methylprednisolone + Mifepristone Contraindicated
- Methylprednisolone + Rubella vaccine Contraindicated
Frequently asked questions
Can I take Conivaptan with Methylprednisolone?
MediHelp rates the interaction as moderate. Conivaptan and Methylprednisolone 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 methylprednisolone exposure. The reverse effect on conivaptan is not clinically established, and conivaptan is given only short term in hospital.
How serious is the interaction between Conivaptan and Methylprednisolone?
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 increased corticosteroid effects such as hyperglycemia and fluid retention during the short conivaptan infusion, and also monitor serum sodium as part of routine care.
What other medicines interact with Methylprednisolone?
MediHelp also lists interactions of Methylprednisolone with, for example, Bcg vaccine live, Measles mumps and rubella vaccine live, Measles mumps rubella and varicella vaccine live. The full list is on the Methylprednisolone page.
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