Glatiramer acetate is an immunomodulator drug for currently used to treat multiple sclerosis.
Copaxone is a random polymer of four amino acids found in myelin basic protein, namely glutamic acid, lysine, alanine, and tyrosine, and may work as a decoy for the immune system.
Teva previously filed a separate lawsuit against Mylan in October 2009 for infringement of multiple patents, including all seven Orange Book patents, covering the chemical composition of Copaxone, pharmaceutical compositions containing it, methods of using it and processes for making it.
Teva said that those patents expire in May 2014 and September 2015.