Amphastar Pharmaceuticals, Inc. is a specialty pharmaceutical company. The Company focuses primarily on developing, manufacturing, marketing and selling generic and injectable, inhalation and intranasal products. The Company has two segments: finished pharmaceutical products and active pharmaceutical ingredients (API) products. The finished pharmaceutical products segment manufactures, markets and distributes enoxaparin, Cortrosyn, Amphadase, naloxone, lidocaine jelly, as well as various other critical and non-critical care drugs. The API segment manufactures and distributes recombinant human insulin and porcine insulin. The Company also manufactures and sells insulin API. As of December 31, 2016, the Company manufactured and sold 19 products. As of December 31, 2016, the Company developed a portfolio of 15 generic abbreviated new drug applications (ANDAs) three generic biosimilar product candidates and six injectable and inhalation product candidates.