Ambien is an FDA-approved medication that is used to treat sleeping disorders. It belongs to the sedative medication class and is known by the brand name Zolpidem. It acts on the central nervous system and changes chemical balance in the brain. It is available in the forms of Ambien 5 mg and Ambien 10 mg. Take it, directly by mouth, with or without food; one glass of water. This prescription medication takes 15- 30 minutes to start on the body; it is suitable to take before sleep.