insomnia
"I have been taking this medicine since 2001! So, over 15+ years.  For two years I took 2mg then 1mg at bed and another 0.5mg if I wake in middle of night, as without it it can take me 4 hours to fall or fall back to sleep.  I have severe insomnia and only take at night time.  Never during day.  I have never built up a tolerance to this.  When I go without,... even for 5 months once, zero withdrawals!  Zero side effect.  However I go back to bad sleep, which I had before.  Never been dependent, as you can tell I can go without....for months.   I just have not found a medication that puts my mind at ease and "gently" relaxes me so I can surrender to sleep.  Doctor now is feeling pressure from industry to reduce my dosage. Zero harm to me. :("