NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Prescription·Evidence index

Ibuprofen and Methotrexate: what the published research says

PubMed indexes 3 records that name Ibuprofen and Methotrexate together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Ibuprofen and Methotrexate. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

3 studies naming Ibuprofen and Methotrexate.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Characteristics of pemetrexed transport by renal basolateral organic anion transporter hOAT3.

Drug metabolism and pharmacokinetics · 2014 · PMID 24042472

Comparative StudyHuman subjects

“Pemetrexed is a superior substrate to methotrexate for hOAT3. Loxoprofen, ibuprofen, and cefazolin could cause drug-drug interactions when attaining high blood concentrations.”

Kurata et al. · Authors' conclusion

Names Ibuprofen and Methotrexate together in an interaction, co-administration, or pharmacokinetic context.

Two drug interaction studies evaluating the pharmacokinetics and toxicity of pemetrexed when coadministered with aspirin or Ibuprofen in patients with advanced cancer.

Clinical cancer research : an official journal of the American Association for Cancer Research · 2006 · PMID 16428497

Multicenter StudyRandomized Controlled TrialResearch Support, N.I.H., Extramural

“Pemetrexed (500 mg/m(2)) with vitamin supplementation is well tolerated and requires no dosage adjustment when coadministered with aspirin (in patients with CrCl > or =60 mL/min) or ibuprofen (in patients with CrCl > or =80 mL/min).”

Sweeney et al. · Authors' conclusion

Names Ibuprofen and Methotrexate together in an interaction, co-administration, or pharmacokinetic context.

Methotrexate disposition following concomitant administration of ketoprofen, piroxicam and flurbiprofen in patients with rheumatoid arthritis.

British journal of clinical pharmacology · 1994 · PMID 8054251

Clinical TrialComparative StudyRandomized Controlled Trial10 participants

“Values of oral clearance, renal clearance, fraction unbound and percentage excreted unchanged of methotrexate varied no more than 12.2% from non-NSAID control during concomitant administration of ketoprofen, flurbiprofen or piroxicam and were not statistically different from non-NSAID control.”

Tracy et al. · From the abstract

Names Ibuprofen and Methotrexate together in an interaction, co-administration, or pharmacokinetic context.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Ibuprofen, Methotrexate, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.