Ketorolac/Probenecid Interactions

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Very Serious. These medicines may interact and cause very harmful effects and are usually not taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

When these two medicines are taken together, your body may remove ketorolac more slowly.

What might happen:

Your blood levels of ketorolac may increase and cause toxic effects.

What you should do about this interaction:

If you experience coffee ground vomit, black or tarry stools, or other signs of bleeding, contact your doctor.Your healthcare professionals (e.g. doctor or pharmacist) may already be aware of this drug interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.

  • 1.Runkel R, Mroszczak E, Chaplin M, Sevelius H, Segre E. Naproxen-probenecid interaction. Clin Pharmacol Ther 1978 Dec;24(6):706-13.
  • 2.Upton RA, Williams RL, Buskin JN, Jones RM. Effects of probenecid on ketoprofen kinetics. Clin Pharmacol Ther 1982 Jun;31(6):705-12.
  • 3.Sinclair H, Gibson T. Interaction between probenecid and indomethacin. Br J Rheumatol 1986 Aug;25(3):316-7.
  • 4.Toradol (ketorolac tromethamine) US prescribing information. Roche Pharmaceuticals March, 2013.

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.