Not Medical Advice: Could this be the blue, oval-shaped pill with the imprint L368 on the front? This has been identified as "Naproxen sodium 220 mg".
Naproxen belongs to the drug class nonsteroidal anti-inflammatory agents. It works by reducing hormones that cause inflammation and pain in the body.
Naproxen is used in the treatment of back pain, muscle pain, pain, ankylosing spondylitis, gout, arthritis, tendinitis, tendinitis, menstrual cramps and more.
Healthline shares 7 Simple Tips to Manage Your Chronic Pain.