Prescription aspirin is used to relieve the symptoms of rheumatoid arthritis (arthritis caused by swelling of the lining of the joints), osteoarthritis (arthritis caused by breakdown of the lining of the joints), systemi...

Codeine is used to relieve mild to moderate pain. It is also used, usually in combination with other medications, to reduce coughing. Combination products that contain codeine and promethazine should not be used in child...

Morphine is used to relieve moderate to severe pain. Morphine long-acting tablets and capsules are only used by patients who are expected to need medication to relieve moderate to severe pain around-the-clock for longer ...