Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. It offers BAQSIMI, a nasal spray for the treatment of severe hypoglycemia; Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin to prevent and treat deep vein thrombosis; REXTOVY and Naloxone for opioid overdose; Glucagon for injection emergency kit; and Cortrosyn, for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency. The company also provides Amphadase, a bovine-sourced hyaluronidase injection; Epinephrine injection for allergic reactions; Lidocaine jelly, an anesthetic product for urological procedures; Lidocaine topical solution for various procedures; Phytonadione injection, a vitamin K1 injection for newborn babies; emergency syringe products; morphine injection for use with patient-controlled analgesia pumps; and Lorazepam injection for surgery and medical procedures. In addition, it offers Neostigmine methylsulfate injection to treat myasthenia gravis and to reverse the effects of muscle relaxants; Isoproterenol hydrochloride injection for mild or transient episodes of heart block; Ganirelix Acetate injection for the inhibition of premature luteinizing hormone surges; Vasopressin to increase blood pressure; and Regadenoson, a stress agent for radionuclide myocardial perfusion imaging, as well as Albuterol Sulfate inhalation aerosol.