I have been on Effexor XR 150mg for about one year. After running out of my script, I decided to stop taking it cold turkey. I am also taking Clonazepam 0.5mg as needed for anxiety and my doctor said increasing the dosage to 1mg as needed would help with the withdrawal symtoms. However, it has been 5 days off the Effexor XR and I am still having horrible withdrawal. Does anyone know how long the withdrawal effects will last so I can live a normal and happy life again! I can't seem to sleep, eat, or move without brain zaps. I feel crappy all the time and very anxious. My libido and my life is all, for lack of a better word, shifukomanic. <--- (made up). If anyone knows how long it takes or has been through this, please, please help!