Pill Imprint M 537

This blue round pill with imprint M 537 on it has been identified as: Naproxen 275 mg.

This medicine is known as naproxen. It is available as a prescription and/or OTC medicine and is commonly used for Ankylosing Spondylitis, Aseptic Necrosis, Back Pain, Bursitis, Chronic Myofascial Pain, Costochondritis, Diffuse Idiopathic Skeletal Hyperostosis, Dysautonomia, Fever, Frozen Shoulder, Gout, Acute, Headache, Herniated Disk, Juvenile Rheumatoid Arthritis, Muscle Pain, Neck Pain, Osteoarthritis, Pain, Period Pain, Radiculopathy, Rheumatoid Arthritis, Sciatica, Spondylolisthesis, Tendonitis, Transverse Myelitis, Polyarticular Juvenile Idiopathic Arthritis.