Aleve Back & Muscle Pain Reliever and Fever Reducer 220mg Tablets provide targeted relief for muscle and back pain. Each Naproxen Sodium tablet is designed to deliver up to 12 hours of effective pain relief. Aleve is formulated to manage minor pain from backaches and other muscle aches and pains. Available in small, round tablet form, these pills are easy to swallow and come in a convenient child-resistant bottle. Pain happens. Aleve it.