Drug interactions
Aspirin rectal + Oxaprozin
Severity: Major
Aspirin rectal and Oxaprozin: major interaction.
Last updated Sources: US FDA label
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
Rectal aspirin is absorbed systemically, so combining it with oxaprozin increases the risk of gastrointestinal bleeding and ulceration. The NSAID may also interfere with aspirin's antiplatelet action at low doses.
What this interaction means in plain words
Aspirin rectal and Oxaprozin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive COX inhibition and mucosal injury, with possible competition at platelet COX-1.
What to do
Avoid concurrent use where possible, or use gastroprotection and monitor for bleeding. Consider alternative analgesics.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Oxaprozin
- Ketorolac intranasal + Oxaprozin Contraindicated
- Ketorolac + Oxaprozin Contraindicated
- Aceclofenac + Oxaprozin Major
- Acemetacin + Oxaprozin Major
- Acetylsalicylic acid + Oxaprozin Major
- Alteplase + Oxaprozin Major
Frequently asked questions
Can I take Aspirin rectal with Oxaprozin?
MediHelp rates the interaction as major. Aspirin rectal and Oxaprozin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Rectal aspirin is absorbed systemically, so combining it with oxaprozin increases the risk of gastrointestinal bleeding and ulceration. The NSAID may also interfere with aspirin's antiplatelet action at low doses.
How serious is the interaction between Aspirin rectal and Oxaprozin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use where possible, or use gastroprotection and monitor for bleeding. Consider alternative analgesics.
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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