MannKind Corporation is a biopharmaceutical company. The Company is focused on the discovery and development of therapeutic products for diseases, such as diabetes. Its product candidate is AFREZZA, which is an inhaled insulin used to control high blood sugar in adults with type I and type II diabetes and helps in glycemic control. AFREZZA consists of a dry formulation of human insulin delivered from a portable inhaler. AFREZZA utilizes its Technosphere formulation technology. Technosphere is a drug delivery platform that may allow the oral inhalation of a range of therapeutics. Technosphere powders are based on the Company's fumaryl diketopiperazine (FDKP), which is a potential of Hydrogen (pH)-sensitive organic molecule that self-assembles into small particles under acidic conditions. The Company has also created a range of breath-powered, dry powder inhalers. Its inhalers can be produced in both a reusable (chronic treatment) and a single-use (acute treatment) format.