The problem with Ambien is that of addiction. Zolpidem is associated with tolerance, dependence, and abuse. Affecting the central nervous system in a drastic way, it may make the user addicted and once the user is addicted, it is not easy to recuperate and maintain health. As Ambien (Zolpidem) is especially required to be taken for the short-term use of severe insomnia, some users abuse it in large quantity only to obtain high. With abuse, there is also the possibility of overdose that can lead to coma and death.