Clonazepam
"I am trying to get off benzoids after taking clonazepam for over 36 years. I am having extreme difficulties. (extreme to the point of life-threatening)
I am using a shorter (effective) half life than the 30 to 40 hours  for clonazepam. I'm over the DTs but life is now truly hell.
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Frankly, I'm going through a quasi-living hell. My desire to stop clonazepam stems from a desire to cut down the 'zombie' feeling all day,and sleeping the clock around.  It's been 20 days now and I'm not really sure I'm going to make it. I would advise any one thing if clonazepam (or any other benzoid) 
is considered: DON'T EVEN START! You'll regret it. It has destroyed my life."