What is a formulary?

Updated on: October 24, 2018

Originally posted on: August 1, 2014

A formulary is a list of covered drugs provided by a plan. Formularies may vary in from plan to plan and the list of covered drugs can change from year to year. It’s a good idea to find out if your medications are covered before you join a plan or want to switch plans during the Open Annual Enrollment Period. You can usually review enrollment materials like the formulary online, call Customer Service, or request a formulary be mailed to you.