Until I came across Mylan, I believed people when they said that generics are equal to the name brand, and that generics are equivalent to each other. I found this to be VERY untrue. I was prescribed .5 mg Clonazepam 2x daily, manufacturer being Teva. One of these would easily handle my anxiety issues, yet when I was prescribed 1mg Mylan, half or even a FULL one wouldn't have the same effect. You might think it may be tolerance, but when I got my next refill from another pharmacy that carried Teva, again one half would be enough to help manage my anxiety. I can take two of the Mylans to the same effect of 1, maybe even half a Teva. My last prescription was Actavis (purepac), and although, like Mylan, the tablets are hard and rounded pressed, I find them to be about as effective as Teva (3x more than Mylan). Whether its different fillers or how they break down, etc, I don't know but I have observed what I consider to be substantial enough variation in effects to personally determine Mylan makes horrible Clonazepam.