Taisho Pharmaceutical Holdings Co. Ltd. engages in the management and administration of its group companies that manufactures and sells over-the-counter (OTC) drugs, foods, and other goods, etc. It operates through the following segments: Self-Medication and Prescription Pharmaceutical. The Self-Medication segment conducts research and development (R&D), manufacturing and sale of over-the-counter drugs, quasi-drugs, food, and general medical and hygiene supplies. The Prescription Pharmaceutical segment handles R&D, manufacturing, and sale of ethical drugs. It also provides the manufacture and sale of prescription pharmaceuticals; and businesses incidental or related thereto. The company was founded on October 3, 2011 and is headquartered in Tokyo, Japan.