Otsuka Pharmaceutical is a Japanese pharmaceutical company that develops and markets a range of products including prescription drugs, over-the-counter medications, and nutritional supplements. The company was founded in 1964 and is headquartered in Tokyo, Japan. Otsuka Pharmaceutical has a strong research and development program and has developed several innovative drugs for the treatment of various diseases. The company is committed to sustainability and has implemented several initiatives to reduce its environmental impact. Otsuka Pharmaceutical has a global presence and operates in several countries around the world.