All plans must cover a wide range of prescription drugs that people with Medicare take, including most drugs in certain protected classes, like drugs to treat cancer or HIV/AIDS. A plan’s list of covered drugs is called a “formulary,” and each plan has its own formulary. Many plans place drugs into different levels, called “tiers,” on their formularies. Drugs in each tier have a different cost. For example, a drug in a lower tier will generally cost you less than a drug in a higher tier.

Most Medicare drug plans (Medicare drug plans and Medicare Advantage Plans with prescription drug coverage) have their own list of what drugs are covered, called a formulary. Plans include both brand-name prescription drugs and generic drug coverage. The formulary includes at least 2 drugs in the most commonly prescribed categories and classes. This helps make sure that people with different medical conditions can get the prescription drugs they need. All Medicare drug plans generally must cover at least 2 drugs per drug category, but plans can choose which drugs covered by Part D they will offer.

The formulary might not include your specific drug. However, in most cases, a similar drug should be available. If you or your prescriber (your doctor or other health care provider who’s legally allowed to write prescriptions) believes none of the drugs on your plan’s formulary will work for your condition, you can ask for an exception.

A Medicare drug plan can make some changes to its drug list during the year if it follows guidelines set by Medicare. Your plan may change its drug list during the year because drug therapies change, new drugs are released, or new medical information becomes available.

Plans offering Medicare drug coverage under Part D may immediately remove drugs from their formularies after the Food and Drug Administration (FDA) considers them unsafe or if their manufacturer removes them from the market. Plans meeting certain requirements also can immediately remove brand name drugs from their formularies and replace them with new generic drugs, or they can change the cost or coverage rules for brand name drugs when adding new generic drugs. If you’re currently taking any of these drugs, you’ll get information about the specific changes made afterwards.

1. MediQuest Plus LLC can help you find a Part D Prescription Plan that fits your needs. We have affiliations with several carriers that offer stand-alone prescription drug plans and/or Medicare Advantage products that include prescription drug coverage (known as MAPD plans). Contact us for an appointment if you would like assistance with searching for a plan.