Express Scripts Medicare offers reliable coverage for the most commonly prescribed brand and generic medications.
See if your drugs are covered and find out which plan is right for you based on where you live, the drugs you take and the pharmacies you use.
A formulary is the list of drugs covered by a Part D plan. Medicare requires all Part D plans to cover at least two drugs in each therapeutic drug category. Some types of drugs are not covered by Medicare Part D, such as drugs for weight loss or cosmetic purposes.
Express Scripts Medicare plans typically cover the drugs listed in the formulary, as long as:
Some types of drugs are not covered by Medicare Part D, such as drugs for weight loss or cosmetic purposes.
To view and/or print our formulary now, click on the plan option below:
Please note: Each drug on a formulary is placed on a tier, based on its cost. The lower the tier, the less you pay for the drug:
Tier 1 Preferred Generic Drugs
Tier 2 Generic Drugs
Tier 3 Preferred Brand Drugs
Tier 4 Nonpreferred Drugs
Tier 5 Specialty Drugs
You may also access our online searchable tool to confirm if your drugs are covered and to see if there are any special coverage rules.*
Some drugs have special coverage rules that may:
Drugs that are subject to these rules are clearly marked in the formulary.
View the list of prescription drugs that currently have prior authorization or step therapy requirements and the rules that apply to each drug:
For more information on how to fill your prescriptions, please review the Evidence of Coverage.
Once coverage begins, you may request an exception to our coverage rules. Learn more about exceptions and appeals.
Express Scripts Medicare plans may periodically:
If we make certain changes to our formulary for a drug you are taking, we will either notify you at least 30 days before the change is made or notify you after the change is made and give you a 30-day refill of the drug at a network pharmacy.
Note: If the U.S. Food and Drug Administration finds that a drug on the formulary is unsafe, or if the drug's manufacturer removes the drug from the market under Medicare Part D regulations, we immediately remove the drug from our formulary and then notify you of the change.
For additional information on formulary changes, please review Chapter 3 of the Evidence of Coverage.