LOUISVILLE, Ky.--(BUSINESS WIRE)--PharMerica Corporation (NYSE:PMC), a national provider of institutional pharmacy and hospital pharmacy management services, today commented on the extension by Omnicare (NYSE: OCR) of its unsolicited $15.00 per share tender offer. Shares representing only 8.9% of PharMerica’s outstanding shares were tendered to Omnicare, which is a significant decline from the previous tender extension on October 5, 2011.