Otsuka America, Inc. (OAI) is a holdings company made up of more than two dozen group companies that offer innovative products in the pharmaceutical, nutraceutical, and consumer markets.


The pharmaceutical business develops and markets products for the diagnosis and treatment of diseases in the following areas: central nervous system, oncology, gastroenterology, ophthalmology, and the cardiovascular system.


The nutraceuticals business is dedicated to maintaining and improving health through quality vitamins, minerals and supplements to provide complete nutrition.


The consumer business is dedicated to bringing the world’s most pure and refreshing water to the market, as well as the most flavorful wines.