¯\_(ツ)_/¯
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If found guilty, you can be banned from doing any business with Medicare and Medicaid in the US - that’s already a part of the law and it’s the same as losing 50% of your revenue in perpetuity.
But it’s never used. Well, they used it on Pfizer, but the agreement was the ban was for a shell company they owned that didn’t actually sell any drugs. A sacrificial lamb if you will.
“A Pfizer subsidiary, Pharmacia and Upjohn Inc., which was acquired in 2003, has agreed to plead guilty to one count of felony misbranding.”
https://www.dispatch.com/story/news/2009/09/03/pfizer-must-p...
2010-June-30: $1094M
2011-June-30: $1076M
2012-June-30: $1342M
2013-June-30: $1608M
2014-June-30: $2140M
2015-June-30: $3490M
Also, because someone asked, edgar has a bar chart breakdown of Biogen's product revenue. The lawsuit was about Biogen's drugs Avonex, Tysabri and Tecfidera. The bar chart (https://www.sec.gov/Archives/edgar/data/875045/0000875045150...) seems to indicate that these three were responsible for about 80-83% of Biogen's revenues (and presumably net income?) in 2014.
I guess what we don't know is what their sales would have been like without the kickbacks? Less, presumably? But 0? Probably not.