Clonidine
"Clonodine has saved me more times than I care to remember from opiate to benzo withdrawal.  I'll never understand why it isn't prescribed more often and why on earth benzodiazepines are given out so carelessly given they are nearly impossible to get off of after years of use and seizures-death are possible if quitting too suddenly.  You can also experience withdrawal symptoms from benzodiazepines for up to three years.  
Rant over...."