Valeant to buy 'female Viagra' maker Sprout Pharma

Canada's Valeant Pharmaceuticals International Inc said on Thursday it would buy Sprout Pharmaceuticals, maker of the first approved treatment for low sexual desire in women, for about $1 billion plus milestone payments. Sprout's controversial pink libido pill, Addyi, won approval from the U.S. Food and Drug Administration on Tuesday after being rejected twice over concerns about its effectiveness and side-effects. There are also concerns that the FDA was pressured into approving Addyi, given th