Formulary and Preferred Drug List


To find information about coverage for a specific medication, check the plan formulary.    

Note: The formulary document is over 100 pages long, sorted by drug category.  For easy reference, there is an index in the back.  If you need to print, consider selecting only the pages you need.

The formulary is a list of generic and brand name drugs that are covered by the plan.  Inclusions of drugs on the formulary are determined by the clinical judgment of a committee of U-M physicians and pharmacists as well as published medical evidence in the diagnosis and treatment of disease.

Find complete medication coverage and member cost information through MedImpact’s online Drug Price Check.

Preferred Drug List

The university’s preferred drug list includes medications that are selected on the basis of effectiveness, safety, and cost relative to other FDA-approved drugs used to treat the same conditions.  Brand name drugs on this list are available at the intermediate (Tier 2) copay level.

Use of the list is voluntary.  Physicians are encouraged, but not required, to prescribe from the preferred drug list when appropriate for the patient’s condition.  The preferred drug list is periodically updated by a team of university physicians and pharmacists who review all FDA-approved drugs.  It is not a formulary and purposely omits many categories.


Please be advised that the formulary is updated periodically and changes may appear prior to their effective date to allow for client notification. The University of Michigan does not warrant or assure accuracy of such information nor is it intended to be comprehensive in nature. The medical provider should consult the drug manufacturer's product literature or standard references for more detailed information.  Every effort is made to ensure complete and accurate information; however, the most accurate source of medication coverage and member cost is MedImpact’s online pricing tool. The pricing tool will not provide cost estimates for the product selection penalty or medications that require prior authorization.