History of renal disorder, hepatic or GI disease. HTN, cardiac decompensation, hypovolemia, dehydration or receiving diuretics, CHF, history of GI disease, active GI, asthma, nasal polyps; patients w/ coagulation haemorrhage disorder. Patients who consume more than 3 cups of alcohol; another antipyretic analgesic. Start treatment as IM/IV then change to PO. Total therapy should not exceed 5 days. May impair ability to drive or operate machinery.