insomnia
"I'm 63 years old and suffer from insomnia and pain from bulging and herniated discs and have undergone three discectomy surgeries. I have been taking Ambien for many years and started with the name brand (10mg) while also trying Ambien CR (12.5mg), then Lunesta, and then back to generic Ambien (10mg).  This generic version has been working very well for several years allowing me to get a full night's sleep without any side effects and it usually acts quickly. "