j0w9v1g9e While insomnia is the approved indication of Ambien, it is also used off label for the treatment of restless legs syndrome. Before this time, Ambien was prescribed successfully in other countries when it had already been approved. Every patient will respond to the medication differently, so patients who develop side effects should speak with their doctor to determine if Ambien continues to be the best course of treatment or if other options should be considered. order zolpidem Before this time, Ambien was prescribed successfully in other countries when it had already been approved. Unlike most medications of this kind, Ambien begins working within 15 minutes, and has a short half life of just two to three hours so the patient will be able to get up in the morning without feeling of grogginess upon wakening.