I also like to compare these products with the existing approved and most used and see the difference. I'm sure that's why we're here as a starter. Same results with 'best in class' but without or least side effects. That's what I look for in the meds I have to take. Keeps me using brand, me forcing my doctor to demand brand so my health care coverage has to allow it. A little bit more out of the pocket but much less if my doctor hadn't demanded them.