insomnia
"I may sound like a commercial here, but I want to share that my experience with generic zolpidem versus name brand Ambien is night and day.  The generic barely works, I needed two generic tablets to get the same sleep effect as one name brand tablet, and the generic leaves me with a headache the next day, and causes depression.  I tried it for several months, because name brand through my insurance is much more expensive ($7 generic - $50 name brand) and I have to say the name brand is far superior. For my experience, the generic zolpidem was awful, I would rate it a 1 on a scale of 1 to 10, and the name brand is a 10."