Hello Well come to health care magic Dear patient , movon(piroxicam) is a nonsteroidal anti inflammatory drug and long term use of these medicines for pain releif is not advisable as they can cause lot of side effects like gastritis, gastric errosions and even upper gastrointestinal bleeding, kidney damage, liver injury, platelet dysfunction and otherd , how ever a single tablet consumed occassionally may not cause any harm , but as you are receiving aspirin and other cardiac medicines you should better always try to refrain from using these medicines, for the problem of osteoarthiritis and pain you should consult a n orthropedician who will guide you proper treatement options for this problem wish you good luck and have a nice day thanks Dr Arshad