Eli Lilly's obesity drug Zepbound can now be covered by government-backed Medicare insurance plans for use in sleep apnea, broadening access to the blockbuster weight-loss treatment. The Wednesday statement from the Centers for Medicare & Medicaid Services comes after Zepbound in December became the first drug approved in the U.

Zepbound is not covered by Medicare or many other insurance plans as a treatment for weight loss. The injectable treatment costs about $1,000 a month without insurance.

According to BMO Capital Markets, Medicare coverage of Lilly’s Zepbound opens the door to using secondary indications to secure CMS coverage for obesity drugs.