rnrnAmbien belongs to the class of drugs called sedative-hypnotics and it is primarily used for short-term treatment of insomnia and mild sleeping trouble. What are some functions of Ambien? Ambien is a Sedative hypnotic, and it works on the same principle as BZD drugs. It activates the chemical messenger in the brain and acts as a natural nerve-calming agent, thereby inducing sleep. Ambien is FDA approved medication buy Ambien online. And it is indicated for the management of insomnia. It can cause tolerance. At the same time, the risk of addiction and drug abuse, and misuse increases manifold. It reduces the sleep onset time to fifteen minutes