I just bought some anastrozole (Arimidex)from a friend of mine. The tablets are square, purple in color, and have BD on one side, and 5-0 on the other. I checked on the web, and couldn't find any reference to these tablets. He also gave me some IP anastrozole that are also purple, round, and have IP on one side. Has anyone had any experience with either of these? I have heard that the IP ones are legit, but no word on the other ones yet. The thing that doesn't make sense is the fact the the BD anastrozoles would have 50 on them when they should only be 1 mg.