Hypersensitivity. Stroke (CVA), heart attack (MI), CABG, uncontrolled HTN, CHF (NYHA II-IV). Patients in whom aspirin or other NSAIDs induce symptoms of bronchospasm, allergic rhinitis or urticaria. Active ulceration or chronic inflammation of either the upper or lower GIT. Treatment of peri-op pain in the setting of CABG. Severe renal & hepatic failure; heart failure.