The FDA has approved Dublin-based Medtronic plc's deep brain stimulation (DBS) therapy as adjunctive treatment for reducing the frequency of partial-onset seizures. The therapy is for use in individuals 18 years of age or older who are resistant to three or more antiepileptic medications. Medtronic plans to launch the therapy in the U.S. this year, said Mike Daly, vice president and general manager of the company's brain modulation business.