Moderate Drug Interaction

Can You Take Aspirin with Ibuprofen?

Understanding the moderate interaction between Aspirin (Spren 100) and Ibuprofen (APO-Ibuprofen 400) for claims professionals, support workers, and care managers.

Moderate severity AllMeds interaction database Updated April 2026

Combining Aspirin (Spren 100) with Ibuprofen (APO-Ibuprofen 400) is a moderate interaction requiring caution and monitoring. No additional analgesic benefit from combining NSAIDs. Additive GI, renal, and cardiovascular toxicity.

Key Takeaways

  • Interaction severity: Moderate
  • Risk: GI bleeding, renal impairment, cardiovascular events.
  • Mechanism: No additional analgesic benefit from combining NSAIDs. Additive GI, renal, and cardiovascular toxicity.
  • Aspirin: S2 in Australia, low risk
  • Ibuprofen: S2 in Australia, low risk
  • Claims action: Monitor and document. Request clinical justification if combination is ongoing.

Aspirin vs Ibuprofen at a Glance

Property Aspirin Ibuprofen
Brand names Spren 100, Cardiprin 100, Pharmacy Action Low Dose Aspirin APO-Ibuprofen 400, WGR-IBUPROFEN 400, Brufen
Drug class nsaid nsaid
Risk level low low
TGA Schedule (AU) S2 S2

Why Is This Combination Dangerous?

No additional analgesic benefit from combining NSAIDs. Additive GI, renal, and cardiovascular toxicity.

Clinical risk: GI bleeding, renal impairment, cardiovascular events.

Regulatory Guidance by Jurisdiction

Australia TGA / SIRA / WorkSafe

The TGA and Australian Medicines Handbook classify this as a moderate drug interaction requiring monitoring and clinical review.

The TGA advises caution with concurrent NSAID use due to increased GI and cardiovascular risk. PBS restrictions may apply to concurrent prescribing.

United Kingdom NICE / MHRA / FPM

NICE NG59 (Low Back Pain) recommends short-course NSAIDs only. Concurrent NSAID use or NSAID plus anticoagulant combinations should be flagged for GI bleeding risk assessment.

United States FDA / CDC / State WC

The CDC and FDA recommend monitoring concurrent CNS depressant use. State workers compensation formularies may restrict or require prior authorization for this combination.

What Claims Professionals Should Do

  1. Document the combination in the claim file with a note on interaction risk
  2. Request clinical justification from the prescriber at the next review
  3. Monitor for adverse effects including excessive sedation, falls, and cognitive impairment
  4. Assess injury relatedness of both medications to the compensable condition
  5. Review at next claim assessment and consider whether the combination is still clinically appropriate

Need to assess this medication across your caseload?

Check all interactions for Aspirin and Ibuprofen across your claimant's full medication list.

AllMeds gives you instant risk assessments, compliance checks, and automated letters for every medication on a claim.

No credit card required. No signup for your first 2 questions.

Related Resources

Medical Disclaimer: This content is for informational purposes for claims professionals and care workers. It is not medical advice. Always consult a qualified healthcare professional for clinical decisions. Drug information is sourced from TGA, FDA, MHRA, PBS, NICE, and CDC databases and may not reflect the latest updates. AllMeds does not replace clinical judgement.