My wife suffers from joint pain that may be rheumatoid arthritis. When pain increases, one NSAID 'Indomethacin' prescribed by the Doctor is given. This happens mostly in the mid night disturbing sleep. Sometimes pain is so severe that indomethacin seems not working. So one or more NSAIDs are required to be given following the intake of indomethacin. But some medicines may interact themselves. Hence the above question.