Aleve All Day Strong Pain Relief. Two bottles containing 200 tablets each (400 total tablets). Each tablet contains naproxen sodium 220mg for arthritis and general pain relief. One tablet administered per dose. Features easy-open arthritis cap for convenient access. Strength lasts 12 hours per dose. Non-habit forming NSAID pain reliever and fever reducer. Clinically proven to relieve pain for 12 hours with just one dose. Brand new, sealed, and unexpired. Ideal for arthritis, muscle aches, backaches, minor body aches, and pain relief.