I have been taking Effexor for over 5 years . 150 mg and stopped taking it cold turkey on Sunday . The week was horrible .. body aches, diarrhea, chills , sweats , brain zaps , you name it . I almost caved on Thursday but kept fighting . I took a sleeping aid at night and Advil for body aches . Today Is a week and I feel amazing !!! Still a few brain zaps and upset stomach but nothing I can’t handle 😋I’m so glad I stuck with it . I feel so clear minded and HAPPY!!