"i have been taking 2mg for 2 years.  my initial dose was 0.5 mg, but until i took 2mg it would not help me sleep.
 if i have an extremely stressful afternoon/evening, my doc said i could take 2 tabs (4mg), as long as i don&rsquo;t take that dose more than twice a month and not on consecutive days. 
i get between 6 1/2 - 8 hours of great sleep per night and feel very rested and energetic each day. i am a very active, athletic person and feel no hangover effect from it. i just feel like i have my life back after sleeping no more than 3 hours per night for 8 years. 
i have a friend who has taken it for 8 years with the same results as me.  neither of us take any other medication."