The Optum Rx Drug List is a guide within select therapeutic categories for clients, plan members and health care providers. Generics should be considered the first line of prescribing. If there is no generic available, there may be more than one brand-name medicine to treat a condition. These preferred brand-name medicines are listed to help identify products that are clinically appropriate and cost-effective. Generics listed in therapeutic categories are for representational purposes only. This is not an all-inclusive list.