insomnia
"I wanted a pill to take when traveling to sleep.  To test it I took 50 mg at home , when I would normally go to sleep without anything.  After a few minutes in bed, I had difficulty swallowing, it was scary.  I drank some water and it went away.  I did not sleep at all, after 2 hours I took an ambien.  I had taken this pill one hour before bed.  A week later I took 25mg as prescribed, cut the 50mg pill in half as directed.  Took it 1.5 hours before bed, no swallowing problems, but after 2 hours, still awake. took ambien."