I bought these after the on set of a bad cold they contain Naproxen Sodium / Pseudoephedrine HCI. The Aleve Cold and Sinus comes in an Extended Release Tablet. The pills worked great for the cold symptoms for both my wife and myself, although they did tend to make me a little jittery or nervous feeling. I am not a doctor so I don't know if that information is of any use to anyone. I do suggest if your like me and don't handle the stimulants well you should be careful if you use it. This is by no means a bad product it does its function very well I was breathing better in just about 45 minutes after the first dose, but I must admit I never took the second. My wife experienced no such side effects so I must still give this product my recommendation. I think it's a good product at a fairly reasonable price.