Side effects from benzo w/d can vary from person to person but can include: anxiety, panic attacks, insomnia, depression, and distorted sensory perception.
Symptoms can peak at 3-4 weeks, and yes, they can last for over a year....the severity DOES lessen with time, though.
A taper is the best way to w/d from benzo's....in an inpatient detox, the drug is tapered over 2 weeks then stopped. A lot of times, another benzo is given as well to help with the taper - then THAT drug is tapered as well.
MY experience with getting off of Klonopin?? Nothing!! I had a bit of anxiety but nothing else, and I had taken it for over two years!!
Good luck!!
Skylark
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"No one can make you feel inferior without your consent"....-E. Roosevelt