From Biogen SEC Filing - sales of TYSABRI® (natalizumab) during 2009 were approximately $1,059.2 million
Biogen Idec Inc. announced today that sales of TYSABRI® (natalizumab) during 2009 were approximately $1,059.2 million, comprised of approximately $508.5 million of sales in the United States and approximately $550.7 million of sales in the rest of the world.