I agree with matahari. When you're at the drug store looking at all the choices they have it's best to keep in mind that a "pain reliever" is not always the same as an "asprin." Nowadays asprin has become a generic word and is used to describe just about anything. Tylenol wouldn't do because it isn't an asprin, and I believe (but am not positive) that Aleve is just a simple pain reliever as well. I believe Bayer is actually an asprin so you may want to look for that. Just go to your local drugstore and read all the labels. Chances are if it says "asprin" it really is. I was able to find a generic form of Bayer at mine and it's only like $2. Also, make sure you pick a bottle that says "light coat" because if it doesn't it won't crumble or disolve in water as well.