Drug interactions
Cortisone + Tolvaptan
Severity: Minor
Cortisone and Tolvaptan: minor 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
Systemic corticosteroids are weak CYP3A4 inducers and might modestly lower tolvaptan exposure. The effect is generally small and is unlikely to be clinically significant for most patients.
What this interaction means in plain words
Cortisone and Tolvaptan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Weak induction of CYP3A4 by the corticosteroid may increase tolvaptan metabolism.
What to do
No routine dose change is needed. Monitor serum sodium during prolonged high-dose corticosteroid therapy.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Tolvaptan
- Atazanavir + Tolvaptan Contraindicated
- Ceritinib + Tolvaptan Contraindicated
- Cobicistat + Tolvaptan Contraindicated
- Conivaptan + Tolvaptan Contraindicated
- Darunavir + Tolvaptan Contraindicated
- Idelalisib + Tolvaptan Contraindicated
Frequently asked questions
Can I take Cortisone with Tolvaptan?
MediHelp rates the interaction as minor. Cortisone and Tolvaptan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Systemic corticosteroids are weak CYP3A4 inducers and might modestly lower tolvaptan exposure. The effect is generally small and is unlikely to be clinically significant for most patients.
How serious is the interaction between Cortisone and Tolvaptan?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is needed. Monitor serum sodium during prolonged high-dose corticosteroid therapy.
What other medicines interact with Tolvaptan?
MediHelp also lists interactions of Tolvaptan with, for example, Atazanavir, Ceritinib, Cobicistat. The full list is on the Tolvaptan page.
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