Ambien is a GABA receptor agonist of the imidazopyridine class. Ambien works by increasing GABA effects in the central nervous system by binding to GABA receptors at the exact location of benzodiazepines. Buy Ambien online is used has a half-life of two to three hours. The half-life, however, is increased in those with liver problems. People must not consume alcohol or other sedatives while taking Ambien and should not take opioid drugs or illicit medications recreationally.