ANI Pharmaceuticals Inc. acquired 23 generic products from privately held pharmaceutical company Amerigen Pharmaceuticals Ltd. for $52.5 million in cash.

The Baudette, Minn.-based pharmaceutical company, which develops and markets branded and generic medicines in the U.S., will also pay about $25 million to Amerigen over the next four years, ANI said in a Jan. 9 press release.

These payments will be tied to the annual gross profit generated by the acquired portfolio: 10 commercial products, three products with regulatory approval and that are launch-ready, four filed products, four in-development products, and a license to commercialize two approved products, ANI Pharmaceuticals said.