Drug interactions
Bosentan + Parecoxib
Severity: Minor
Bosentan and Parecoxib: 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
Parecoxib is converted to valdecoxib, which is cleared partly by CYP2C9 and CYP3A4. Bosentan induction of these enzymes could lower valdecoxib levels and reduce analgesic effect.
What this interaction means in plain words
Bosentan and Parecoxib 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
Bosentan induces CYP2C9 and CYP3A4, which may increase valdecoxib clearance.
What to do
Monitor analgesic response and adjust the dose within the labeled range if needed. No routine dose change is needed.
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 Bosentan
- Bosentan + Cyclosporin Contraindicated
- Bosentan + Glibenclamide Contraindicated
- Bosentan + Glyburide-metformin Contraindicated
- Bosentan + Lonafarnib Contraindicated
- Bosentan + Sparsentan Contraindicated
- Artemether / lumefantrine + Bosentan Major
Frequently asked questions
Can I take Bosentan with Parecoxib?
MediHelp rates the interaction as minor. Bosentan and Parecoxib have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Parecoxib is converted to valdecoxib, which is cleared partly by CYP2C9 and CYP3A4. Bosentan induction of these enzymes could lower valdecoxib levels and reduce analgesic effect.
How serious is the interaction between Bosentan and Parecoxib?
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 analgesic response and adjust the dose within the labeled range if needed. No routine dose change is needed.
What other medicines interact with Bosentan?
MediHelp also lists interactions of Bosentan with, for example, Cyclosporin, Glibenclamide, Glyburide-metformin. The full list is on the Bosentan page.
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