Alexza Pharmaceuticals, Inc. is a pharmaceutical company focused on the research, development and commercialization of products for the acute treatment of central nervous system conditions. The Company's product candidates are based on the Staccato system technology. Its product candidates in development include AZ-002, which contains alprazolam as an active pharmaceutical ingredient (API) is developed for the management of patients with acute repetitive seizures, and AZ-007, which contains zaleplon as API is developed for the treatment of insomnia in patients who have difficulty falling asleep, including those patients with middle of the night awakening having difficulty falling back asleep. Its product also includes ADASUVE, which contains loxapine as API is developed for the treatment of agitation associated with schizophrenia or bipolar disorder. It has initiated a Phase IIa proof-of-concept study for AZ-002 in patients with epilepsy and has completed Phase I testing for AZ-007.