insomnia
"Tried the brand name a while back and had FULL SCALE hallucinations and memory loss.  Being a nurse, I believed there was no difference between generic and brand, but after 15 years of chronic TERRIBLE insomnia, I gave the generic a try.  While I didn't have the horrid side effects, 10mg will put me to sleep well, but not stay asleep.  The controlled release helps me stay asleep, but it takes hours to fall asleep.  My doc prescribed 5mg of the immediate and 6.25 controlled, and as long as I don't use it every day (taking a day off here and there which kills me) it works for about 4-5 hours of sleep, which depending on how desperate you are is plenty.  Plus the price can't be beat."