** Shares of Supernus Pharmaceuticals SUPN.O rise 6.2% to $39.67
** SUPN says U.S. FDA has approved its drug-device combination, Onapgo, to treat movement-related symptoms of Parkinson's disease
** Approval comes after previous declines in 2022 and 2024 due to quality and device concerns
** SUPN says Onapgo will be available in United States in Q2 and is expected to generate $200 mln to 300 mln in peak sales
** SUPN gained 30.4% in 2024
(Reporting by Kamal Choudhury in Bengaluru)
((Kamal.Choudhury@thomsonreuters.com;))