日本参天制药Santen Pharmaceutical 
参天制药从1890年创业开始，作为一个从事处方药品以及非处方药品的研究、开发、生产、销售的企业，一直为人们的眼睛和身体的健康保持和提高作出着不断的贡献。
现在，作为一个集中致力于眼科和风湿病的专业性企业，在占本公司销售额80%的眼科处方药领域，我们针对所有的眼科疾病开发生产优质的医药品，并根据医疗现场的需求积极提供信息，在日本国内取得了No.1的地位。
此外，以眼科处方药事业为中心，已在日本美国欧洲三方面构筑了临床开发·销售体制，提供给世界以卓越的研究开发能力为根本的有独特性的产品，成为在世界上有存在意义的企业是我们的目标。

■处方药
[眼科处方药]
在日本国内的市场占有率约为4成，是眼科处方药市场的领导者。我们具备符合医疗现场需求的多种疾病领域的治疗药，拥有国内最多的MR(医药信息担当者)和有绝对优势的信息提供和收集能力，为日本全国的眼科医生提供细致的服务。在海外，美国、欧洲、亚洲等各国都拥有基地，进行眼科药的开发、生产和销售．

[抗风湿药]
参天制药的另一个支柱是抗风湿药品领域。在关节风湿治疗领域里我们向医疗现场提供被称为DMARDs（Disease Modifying Anti-rheumatic Drugs：疾病修饰性抗风湿药）的3个品种的处方药。同时在加强研究开发继这3个品种之后的新抗风湿药品。

■非处方药
1897年「大学眼药」开始销售以来，参天制药100多年来着眼于简易治疗和眼病预防进行了非处方滴眼剂的开发、生产、销售。并从提高便利性的角度出发，将很多具有独创性的构思应用到了产品当中，1962年在日本率先采用塑料材质的滴眼剂容器是一个具有代表性的例子。主要的产品有「SenteFXneo」、「Santedo」系列、「Sante40」系列等．

■医疗器械
作为眼科领域的专家，对医疗机构提供医药品以外的产品、服务，这一医疗器械事业也是参天制药的一个强项。主要销售白内障手术所使用的超音波白内障手术装置，眼内镜片，手术用的一些物品等。2001年11月，收购了以眼内镜片的研究、开发、生产、销售为主的美国的Advanced?Vision?Science?Inc．，进一步加强了眼内镜片的产品开发力量．

[Prescription Ophthalmics]
Santen leads the Japanese market for prescription ophthalmics with a share of nearly 40 percent. We offer treatments for a wide range of ophthalmic disorders and covers ophthalmologists nationwide with the largest number of medical representatives in Japan. We also have overseas bases in the United States, Europe and Asian countries for the development, production and sale of ophthalmic pharmaceuticals.

[Anti-rheumatic Pharmaceuticals]
Santen's second largest business area is anti-rheumatic pharmaceuticals, and we provide three disease modifying anti-rheumatic drugs (DMARDs) to healthcare institutions throughout Japan for the treatment of rheumatoid arthritis. Furthermore, we are strengthening our research and development efforts to develop new anti-rheumatic drugs to succeed these two products.

Over-the-Counter (OTC) Pharmaceuticals

Since the launch of Daigaku Eye Drops in 1899, Santen has been committed to the development, production and marketing of superior OTC ophthalmic products, with a focus on basic treatment and eye disease prevention. A consistent emphasis on creativity and innovation, such as introducing Japan's first plastic eye drop container in 1962, highlights Santen's determination to put numerous innovative ideas into practice. Major OTC products include Sante FX Neo , the Sante de u series and the Sante 40 series, which have been well-recognized among Japanese consumers for many years.

Medical Devices

Santen participates in the ophthalmic devices market as an expert in the field of ophthalmology, and the ability to provide products and services to medical institutions in addition to pharmaceuticals illustrates our strength. Our main products include phacoemulsification machines for cataract surgery, intraocular lenses and surgical instruments. In November 2001, Santen strengthened its ability to develop intraocular lenses by acquiring the U.S. company Advanced Vision Science, Inc., which is involved in the research, development, production and marketing of intraocular lenses.