Derun Pharmaceutical
Where Veterinary Expertise
Meets cGMP Precision
In the office, our R&D colleagues, clad in cleanroom suits, meticulously inspect each batch of medicines—a dedication that has remained steadfast for nearly 60 years.

Since establishing Da-An Chemical Pharmaceutical in Yongkang, Tainan in 1966, we have been guided by the principles of ""safety, efficacy, and trustworthiness,"" growing from a local factory into an internationally recognized cGMP-certified animal pharmaceutical plant.

Our first significant milestone was becoming Bayer's manufacturing base in Taiwan. In 2021, Derun Biotechnology achieved cGMP certification, exceeding GMP standards, signifying not only an upgrade in manufacturing technology but also demonstrating that our R&D and quality have aligned with international standards.

Today, our products and services cover both commercial and companion animals, continuously safeguarding animal health with professionalism and innovation; starting from Tainan, we are bringing Taiwanese animal pharmaceuticals to the global market.
Our Specialities
Advantage 01
Extensive International Collaboration Background
Formerly served as Bayer's manufacturing base in Taiwan. With over 30 years of experience in foreign companies, familiar with the high standards international pharmaceutical companies have for processes, quality, and delivery time, and possesses experience and capability in undertaking domestic and international OEM/ODM projects.
Advantage 02
cGMP Certification – An International Standard Exceeding Traditional GMP
Unlike traditional GMP, cGMP emphasizes continuous improvement and immediate compliance with the latest standards. Derun strictly controls its pure water and air conditioning systems according to these standards. Pure water preparation, storage, and distribution are monitored throughout the entire process to ensure water purity and freedom from contamination; the cleanroom HVAC system precisely controls temperature, humidity, and pressure differential to maintain environmental stability and ensure consistent product quality.
Advantage 03
Rigorous Manufacturing Equipment
On the production line, we perform equipment qualification, which includes design qualification (DQ), installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) to ensure that every piece of equipment can stably meet the set manufacturing specifications in mass production.
Advantage 04
Laboratory Instrument Validation and Data Integrity
All testing instruments undergo complete installation, operation, and performance validation to ensure accurate and reliable analytical results. We implement data integrity according to the ALCOA+ principle (Attributable, Legible, Contemporaneous, Original, Accurate + Complete, Consistent, Enduring, Available) to ensure that laboratory records are authentic, traceable, and tamper-proof, complying with international pharmaceutical testing and regulatory requirements, and guaranteeing the consistency and compliance of the quality of each batch of products.
Advantage 05
A Corporate Culture Emphasizing Talent, Innovation, and Service
We value talent development and innovative research and development, and with the mission of ""serving animals, serving people, and serving society,"" we continuously launch safe, effective products that meet international standards, while actively expanding into global markets.
Certifications
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