ASKA Pharmaceutical Holdings Co., Ltd. engages in the management of its group companies which are involved in the manufacture and sale of pharmaceuticals, quasi-drugs, food, veterinary drugs, feeds, feed additives, and medical devices. It operates through the Pharmaceutical and Other segments. The Pharmaceutical segment manufactures and sells pharmaceutical products. The Other segment includes veterinary drug, clinical testing, outsourcing, health food, and medical equipment businesses. The company is headquartered in Tokyo, Japan.