Abbott Laboratories will pay $160 million to resolve claims that two of the company’s units submitted false claims to Medicare by providing kickbacks to diabetes patients, including “free” or “no cost” glucose monitors, the U.S. Department of Justice said.

Gilead Sciences agreed to pay $97 million to resolve claims from the U.S. government that the company violated the False Claims Act.

Novartis AG agreed to pay more than $729 million to settle U.S. government charges that the company paid illegal kickbacks to doctors and patients to boost drug sales, the U.S. Department of Justice said.

Regeneron Pharmaceuticals said the company will vigorously defend federal charges of being involved in a kickback scheme to bolster sales of the blockbuster macular degeneration drug Eylea.