Beginning Jan. 1, 2020, certain drugs will have new limitations or will require utilization management (e.g., prior authorization [PA] requirements, step therapy [ST] modifications and nonformulary [NF] changes) under the Humana commercial and Medicare formularies for the 2020 plan year. These changes could mean higher costs or new requirements for Humana members who use these drugs. Humana encourages the use of generic and cost-effective brand medications whenever possible. Find all the details here.