I have cut down on my Effexor from 150mg XR to 75mg XR. I now want to quit completely. I have taken this drug for 10 years with no serious side-effects, but past efforts to quit have resulted in "Brain Shivers" and overall malaise. I have always gotten back on after only a few days off the drug. This time I want to stay off the drug. I am concurrently taking Wellbutrin. I would appreciate any help/support anyone can give to make this withdrawl process successful this time. Thanks