Aleve Back and muscle pain relief Naproxen Sodium tablets provide targeted muscle and back pain Relief. Each Naproxen Sodium 220 mg Tablet has the strength to deliver up to 12 hours of effective back and muscle pain relief. Aleve is formulated to manage minor pain from a backache and other minor muscle aches and pains. Available in small, round tablet form, these back and muscle pain relief pills are easy to swallow and come in a convenient child‐resistant bottle. Pain happens. Aleve It.