Eli Lilly said on Tuesday it has begun selling higher doses of its popular weight-loss drug Zepbound in vials in the U.S. at a $150 discount to the cost of the injector pen versions, as it seeks to spur further demand for the medicine.

Eli Lilly & Co. said Tuesday that it has launched new doses of its obesity treatment drug and reduced its prices. The pharmaceutical company said it has launched 7.5 and 10 milligram single dose vials of its Zepbound drug,

Eli Lilly is offering higher-dose vials through its direct-to-consumer website, LillyDirect, which started offering lower doses in vials in August.