PharMerica Corp.

PharMerica, the drug supply company Omnicare Inc. has targeted with a $440.8 million unsolicited takeover bid, fell after US regulators sued to block the deal. The Federal Trade Commission said Friday that merging the two largest drug suppliers to nursing homes would increase prices for Medicare recipients, passing on the costs to taxpayers. Kentucky-based PharMerica has urged Omnicare to drop its offer.