Tacrolimus (Prograf) is used in conjunction with other medications to prevent your body from rejecting organ transplants such as kidney, liver, or heart.

Sandoz is the third largest provider in the country and distributes about 296 drugs in the U.S. It is a division of the swiss-led Novartis Group and was established in 2003 when Novartis united all of its generics businesses. Sandoz has 10 manufacturing sites, including Austria and Slovenia.