you are allergic to any ingredient in sulindac
you have had a severe allergic reaction (eg, severe rash, hives, trouble breathing, growths in the nose, dizziness) to aspirin or an NSAID (eg, ibuprofen, celecoxib)
you have recently had or will be having bypass heart surgery
you are also taking another NSAID (eg, ibuprofen)
you are in the last 3 months of pregnancy
Contact your doctor or health care provider right away if any of these apply to you.