Skip to content

Drug interactions

Oxaprozin + Sulfasalazine

Severity: Minor

Oxaprozin and Sulfasalazine: 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 pharmacokinetic or clinically significant interaction exists between sulfasalazine and oxaprozin; the two are often used together in inflammatory arthritis. Both can cause some GI upset or rarely renal effects.

What this interaction means in plain words

Oxaprozin and Sulfasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

No clear mechanism; possible overlapping gastrointestinal and renal adverse effects.

What to do

No routine adjustment is needed; monitor for GI symptoms and periodically check renal function and blood counts as for sulfasalazine 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Oxaprozin and Sulfasalazine, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Oxaprozin with Sulfasalazine?

MediHelp rates the interaction as minor. Oxaprozin and Sulfasalazine 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 pharmacokinetic or clinically significant interaction exists between sulfasalazine and oxaprozin; the two are often used together in inflammatory arthritis. Both can cause some GI upset or rarely renal effects.

How serious is the interaction between Oxaprozin and Sulfasalazine?

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 adjustment is needed; monitor for GI symptoms and periodically check renal function and blood counts as for sulfasalazine therapy.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in