anxiety, generalized anxiety disorder, clonazepam, withdrawal, sleep. I have been on clonazepam for 12 yrs. I have been taking 1mg. at night to help with sleep and anxiety related thoughts. I am now trying to stop because I think it was causing more harm than good, and it's been too long. I tapered from 1mg. nightly to .5 mg for a week, then tapered down to 1/4 of a 1mg tablet over a ten day period, and then stopped.