Drug interactions
Oxaprozin + Tolvaptan
Severity: Minor
Oxaprozin 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
No well-established interaction raising potassium exists for this pair; tolvaptan is a vasopressin antagonist that generally does not cause hyperkalemia. NSAIDs may blunt renal function in volume-depleted patients, but a specific interaction is not clearly documented.
What this interaction means in plain words
Oxaprozin 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.
Oxaprozin belongs to Musculoskeletal; Tolvaptan belongs to Endocrine.
Why it happens
No established mechanism; theoretical renal effects of NSAIDs during aquaresis.
What to do
Monitor renal function and serum electrolytes as part of routine tolvaptan monitoring.
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 Oxaprozin
- Ketorolac intranasal + Oxaprozin Contraindicated
- Ketorolac + Oxaprozin Contraindicated
- Aceclofenac + Oxaprozin Major
- Acemetacin + Oxaprozin Major
- Acetylsalicylic acid + Oxaprozin Major
- Alteplase + Oxaprozin Major
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 Oxaprozin with Tolvaptan?
MediHelp rates the interaction as minor. Oxaprozin 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. No well-established interaction raising potassium exists for this pair; tolvaptan is a vasopressin antagonist that generally does not cause hyperkalemia. NSAIDs may blunt renal function in volume-depleted patients, but a specific interaction is not clearly documented.
How serious is the interaction between Oxaprozin 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: Monitor renal function and serum electrolytes as part of routine tolvaptan monitoring.
What other medicines interact with Oxaprozin?
MediHelp also lists interactions of Oxaprozin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Oxaprozin page.
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