The plan encourages the use of generic drugs instead of brand-name drugs whenever possible. Typically, brand-name medications are 50% to 75% more expensive than generics.

The Express Scripts or Kaiser network pharmacy will always dispense an available generic medication unless otherwise indicated by the prescriber or the member.

With Express Scripts, if you choose the brand-name drug where a generic exists, you must pay the difference between the brand and generic in addition to your copayment.