Otsuka Pharmaceutical Co., Ltd. (大塚製薬株式会社, Ōtsuka Seiyaku Kabushiki-gaisha) (TYO: 4578), abbreviated OPC, is a pharmaceutical company headquartered in Tokyo, Osaka and Naruto, Japan. The company was established August 10, 1964. OPC's parent company Otsuka Holdings Co. Ltd. joined the Tokyo Stock Exchange through an initial public offering (IPO) on December 15, 2010, at which time Otsuka Holdings was Japan's No.2 drug maker by sales after industry leader Takeda Pharmaceutical Company. The IPO debuted at $2.4 billion, making it the largest for a pharmaceutical company up to that time. More information...
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