The page you are looking for could not be found Quick Links Explore Therapeutic AreasCongress MaterialsOur Clinical TrialsCare & Financial SupportConnect with Field Medical Contact us Submit a medical inquiry Submit a medical question on an Otsuka product.Contact center support To discuss a medical inquiry on an Otsuka product, please call 1-800-441-6763.Report an adverse event or product complaint To report an adverse event or a product quality complaint, please call 1-800-438-9927.