Otsuka America Pharmaceutical, part of the Otsuka group of companies, oversees commercial activities in the US focusing on a diverse portfolio of neuroscience, oncology and cardio-renal products. Otsuka America 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 disease 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.