Choseido Pharmaceutical Japan

Choseido Pharmaceutical is a Japanese pharmaceutical company specializing in the manufacture and sale of generic drugs, with a particular focus on cephem antibiotics. Founded in 1894 and headquartered in Tokushima, the company operates as a subsidiary of Nihon Generic within the Nihon Chouzai Group, one of Japan's largest pharmacy operators. Choseido is a major manufacturing base in Japan, reportedly accounting for a significant portion of the domestic production of generic cephem antibiotics. In addition to its own product line, the company provides extensive contract manufacturing services (CMO) for other pharmaceutical firms, leveraging its GMP-compliant facilities. Despite recent regulatory challenges and administrative actions related to manufacturing quality, the company remains a critical player in the Japanese generic drug market.