Amphastar Pharmaceuticals, Inc. is a bio-pharmaceutical company that develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. Its products include BAQSIMI for severe hypoglycemia, Primatene MIST for intermittent asthma, Glucagon injection, Enoxaparin, and REXTOVY and Naloxone for opioid overdose. The company also offers diagnostic and emergency products such as Cortrosyn, Amphadase, Epinephrine injection, Lidocaine products, Phytonadione injection, and emergency syringes. In addition, it provides Albuterol sulfate inhalation aerosol, Iron sucrose injection, Teriparatide injection, Ipratropium Bromide HFA inhalation aerosol, and active pharmaceutical ingredient (API) products including Recombinant Human Insulin and porcine insulin API. Founded in 1996, Amphastar is headquartered in Rancho Cucamonga, California.