The drugs covered by each plan vary, so there is no single drug list that applies to all plans. All Medicare drug plans must make sure that the people in their plan can get medically-necessary drugs to treat their conditions. Listed below are some of the coverage rules plans use to make sure that certain drugs are used correctly and only when necessary. Becoming familiar with these terms will help you make choices about your coverage:
- Drug Lists (Formularies)
- Prior Authorization
- Quantity Limits
