Kosei Pharmaceutical Co., Ltd.
The Gateway to High-Quality Japanese Medicines

For more than 70 years, Kosei Pharmaceutical has been a cornerstone of Japan’s healthcare system, trusted for its steady supply of safe, high-quality medicines that patients and providers rely on. Originating in Osaka’s Kitahama district, Japan’s ‘pharmaceutical town,’ Kosei has grown from a local trading company into a global distribution powerhouse supporting medical practices.

Today, the company supplies a broad range of prescription drugs, generics, OTC products, rare disease treatments and medical devices to more than 12,000 hospitals, clinics and pharmacies across Japan. Internationally, Kosei partners with over 300 organizations in 50 countries, bringing the proven precision and reliability of Japanese pharmaceuticals to rest of the world. Its portfolio includes over 20,000 types of medications supplied to medical institutions and wholesalers.

“We meet the global demand for high-quality Japanese pharmaceuticals by delivering timely, compliant and cost-effective solutions tailored to the specific needs of each region, strengthening our competitiveness,” says Kohei Toda, president and managing director.

At the center of Kosei’s capabilities are its proprietary digital platforms. For domestic customers, Kosei Market offers real-time access to over 20,000 products, integrating live inventory data, pricing and logistics into a single, intuitive system. International buyers are supported by synapse, the world’s first and only English-based database of Japanese-approved pharmaceuticals. It provides information on medicinal products and enables one-click quotation requests.

Local Expertise Driving Global Pharmaceutical Access

Kosei was established in 2011 by Kohei Toda, the current president and representative director, who founded Kosei Pharma UK. The company began its full-scale international expansion with parallel importation of pharmaceuticals from EU countries and generic drug manufacturing as its main businesses. This subsidiary ceased operations in 2020 due to the impact of Brexit, but its international expansion efforts in Europe and other regions are now being carried forward through the international business division of the Japanese parent company. Amid growing demand for high-quality pharmaceuticals approved in Japan overseas, Kosei leverages its robust network of domestic manufacturers and wholesalers to establish a system for swiftly supplying safe and reliable pharmaceuticals.

Synapse Was Designed To Remove Friction From Cross-Border Pharmaceutical Trade. We Wanted To Give Global Buyers The Same Seamless Experience Our Domestic Customers Count On

Unlocking Efficiency in Pharmaceutical Distribution

A major competitiveness driver is its operational efficiency and ease of business enabled by digital transformation. Kosei’s flagship platforms are transforming how pharmaceutical products are discovered, quoted and delivered.

In an industry where delays and compliance missteps can compromise patient safety, Kosei delivers speed, accuracy and full traceability. Its platforms ensure that Japanese-approved medicines are delivered in full adherence to global standards.

Kosei Market empowers customers from all regions of Japan—from clinics in Hokkaido to pharmacies in Okinawa—to make fast, informed decisions. Designed with user experience in mind, it integrates decades of distribution knowledge into a scalable, efficient interface that minimizes friction and maximizes accuracy.

The platform’s impact goes beyond speed and transparency. It has been instrumental in enabling Kosei to scale nationally with a relatively lean operational team. By replacing traditional fax-and phone-based ordering systems, it has significantly improved customer acquisition and retention.

Real-time stock updates at the manufacturer level extend the platform’s utility, equipping customers with the foresight to effectively navigate supply chain disruptions. These enhancements and a growing base of registered hospitals, pharmacies and wholesalers have positioned Kosei Market as one of Japan’s leading B2B pharmaceutical e-commerce platforms.

On the global front, synapse brings the same level of clarity and control to procurement. The intuitive platform offers a comprehensive, English-language database with advanced search capabilities by ingredient, therapeutic category or specific tags. Importers unfamiliar with Japanese nomenclature can now find precise medications tailored to their treatment needs in just a few clicks.

“synapse was designed to remove friction from cross-border pharmaceutical trade,” says Toda. “We wanted to give global buyers the same seamless experience our domestic customers count on.”

synapse is more than just a searchable database, it supports full-cycle procurement. Clients can build a cart, request a quote and receive a response within two business days. Orders can then be placed directly on the platform. Built-in chat functionality eliminates the need for external communication tools, making it a complete transaction environment. By streamlining transactions and improving transparency, the platform makes procurement faster, easier and more convenient for customers.

Further strengthening its digital-forward vision, Kosei’s parent company, Cliniphar Co. Ltd., develops pharmaceutical IT solutions that improve global distribution networks and expand access to essential medicines. Its patented technologies, including a method to provide information on the amount of pharmaceutical products shipped and an information provision system, support more transparent, efficient and responsive supply chain operations.

Delivering Global-Scale Reliability with Full Compliance

Kosei’s supply chain strength comes from its direct access to pharmaceutical suppliers and long-standing partnerships with domestic manufacturers. The network enables it to consistently source common and rare pharmaceutical products at stable prices. Whether fulfilling urgent bulk orders or providing niche treatments, Kosei delivers with speed, cost-efficiency and strict regulatory compliance.

Its warehouse operates within GDP guidelines and strives to arrange same-day shipping for orders, ensuring a timely and dependable supply.

Its export expertise is a major asset for global buyers. An in-house team handles complex export documentation, licensing processes and customs clearance, helping clients easily navigate international regulations. Across the globe, the team ensures customers receive accurate, timely, and fully compliant shipments, avoiding common pitfalls that often delay or complicate pharmaceutical imports.

“We are well-versed in export regulations and procedures and can provide quick and reliable export support,” says Toda.

Shaping the Future of Global Pharmaceutical Supply

Kosei anchors its remarkable growth and long-standing leadership in three fundamental pillars; trust, digital agility and international responsiveness.

With decades of experience, it has earned deep trust among healthcare providers, distributors and manufacturers worldwide. This trust is rooted in Kosei’s history and uncompromising focus on safety, accuracy and transparency. Every order processed and product shipped carries a legacy of excellence and care.

As global demand for quality medicines continues to grow, Kosei Pharmaceutical is setting new benchmarks in pharmaceutical distribution, combining experience with digital innovation to lead the next era of global healthcare delivery.