Eton Pharmaceuticals, Inc., a specialty pharmaceutical company, focuses on developing and commercializing pharmaceutical product using the U.S. Food and Drug Administration's 505(b)(2) regulatory pathway. It primarily focuses on liquid products, including injectable, oral liquid, and ophthalmic products. The company is developing DS-300, an injectable nutrition product candidate; EM-100, an ophthalmic product for the treatment of allergic conjunctivitis; ET-103, an oral liquid product candidate; DS-100, an injectable product candidate for use in pain management; DS-200, an injectable parenteral nutrition product candidate; ET-101, an oral liquid product for use in seizure control; ET-102, an oral liquid product for use as a muscle relaxant; and CT-100, a synthetic corticotropin therapeutic candidate that mimics the amino acid chain of H.P. Acthar Gel. Eton Pharmaceuticals, Inc. was incorporated in 2017 and is based in Deer Park, Illinois.