insomnia
"I've been taking ambien (generic teva) brand for the past 5 years. It works best when you take it on an empty stomach, meaning no food for a couple hours( if you take it with food or after you eat it won't work as well). I prefer to break mine into pieces in my mouth. I feel it works faster that way. Ambien has a very short half life so this medicine is good at getting you to sleep but not necessarily keeping you asleep for more than a few hours. When I was really depressed I would take 5mg to fall asleep then I'd wake up 4-5 hours later being wide awake and I'd take the other half."