Taisho Pharmaceutical Co., Ltd. traces its roots back to 1912 when it was established in Tokyo, Japan, as Taisho Seiyaku. Over more than a century of operations, the company has expanded from a domestic producer of proprietary medicines into a diversified healthcare group. Today, Taisho Pharmaceutical operates across multiple segments, including ethical pharmaceuticals, over‐the‐counter (OTC) drugs, quasi‐drugs and health‐oriented products, while continuing to uphold its founding commitment to innovation and quality.
In the ethical pharmaceuticals segment, Taisho develops and markets prescription medicines addressing areas such as oncology, central nervous system disorders and gastrointestinal health. The company has built a global R&D network and has in-licensed novel candidates to strengthen its pipeline, notably in lung cancer and rare diseases. In parallel, its OTC portfolio features household names such as Pabron brand cold remedies and Loxonin analgesics, alongside digestive care and nutritional supplements. Taisho also offers cosmetic and quasi‐drug products, further broadening its consumer health footprint.
Taisho Pharmaceutical maintains a robust international presence, with operations spanning Asia, North America and Europe. The company leverages subsidiary offices, joint ventures and strategic partnerships to distribute its products in over 80 countries. In key markets such as China and Southeast Asia, Taisho focuses on localized manufacturing and marketing, while in the United States and Europe it emphasizes collaborations with specialty distributors and biotech firms to introduce advanced therapies and bolster its global supply chain resilience.
Under the leadership of President and CEO Kiyoshi Yonekawa, Taisho Pharmaceutical has implemented a midterm management plan that prioritizes sustainable growth, digital transformation and patient-centric innovation. The company continues to invest in R&D facilities and alliances with academic institutions and industry partners to accelerate the discovery of new treatment modalities. As it moves forward, Taisho remains committed to enhancing its portfolio, strengthening global networks and delivering value to patients, healthcare providers and shareholders alike.
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