DEER PARK, Ill., Dec. 20, 2021 (GLOBE NEWSWIRE) — Eton Pharmaceuticals, Inc (Nasdaq: ETON), an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases and ANI Pharmaceuticals, Inc (Nasdaq: ANIP), a bio-pharmaceutical company serving patients in need through the development and manufacturing of high-quality generic and branded medicines, today announced the commercial launch of Carglumic Acid tablets.