Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing hormones that cause pain, fever, and inflammation in the body. Meloxicam is used to relieve pain, tenderness, swelling, and stiffness caused by osteoarthritis (arthritis caused by a breakdown of the lining of the joints) and rheumatoid arthritis (arthritis caused by swelling of the lining of the joints).