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.

The agency’s decision expands the use of Zepbound and could potentially pave the way for Eli Lilly to gain broader insurance coverage for the treatment.

Medicare now covers Eli Lilly's Zepbound for obstructive sleep apnea, FDA-approved for obesity and sleep apnea treatment, reducing apnea events by 62.8%.

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.