Republican and Democratic senators at a committee hearing accused pharmaceutical firms of abusing the US patent system to keep their prescription drug prices high. Novo Nordisk’s Ozempic and Eli Lilly and Co.’s Humalog were cited as examples of a drug industry practice called evergreening, which allows companies to extend patents by making minor changes to the medicine or delivery device.

Full Story: https://www.nbcnews.com/health/health-news/sky-high-drug-prices-senators-blame-patent-abuse-rcna153350