ASKA Pharmaceutical Co., Ltd. engages in the manufacture, sale, import, and export of pharmaceuticals, veterinary medicine, quasi-drugs, food, and medical devices. It operates through the Pharmaceutical Business and Other segments. The Pharmaceutical Business segment manufactures and sells medical drugs. The Other segment includes veterinary drugs, clinical testing, and medical devices. The company was founded by Yasohachi Yamaguchi on June 16, 1920 and is headquartered in Tokyo, Japan.