Drugmakers spent nearly $500 million on advertisements for obesity and diabetes treatments in the U.S. during the first seven months of this year, up 20% from the same period a year ago, according to new data released Friday.

U.S. health-care providers wrote more than 9 million prescriptions for Ozempic, Wegovy, and other obesity and diabetes drugs during the last three months of 2022, up 300% from early 2020. 

The top four drugs advertised were Novo Nordisk’s Ozempic, Wegovy and diabetes pill Rybelsus and Boehringer Ingelheim’s own diabetes treatment Jardiance, which is set to face drug price negotiations with the federal Medicare program. 

Spending on Ozempic ads was $120 million during that time period, up 23% from the same period last year.

MediaRadar said most of the spending on the drug was for digital advertising, such as online video.