I have stopped Effexor, it was nasty but I did it through sheer determination and bloody mindedness. It can be done.
I was on 300mg and went to 150 for two weeks. I had terrible symptoms. Shaking, brain zaps, nausea, sweating, diarrhea, headaches etc, etc. I started to feel better at two weeks and then the brain shivers and vertigo stopped at three, so I cut to 75mg and the withdrawal started to ramp up again.
So I thought why prolong the agony, let's just get this done. So I stopped cold turkey two days into taking 75mg.
I was very poorly for two weeks, a little better the third week and by the fourth week the worst was over.
What helped me was Phenergan, Vitamins B, C and D, Omeaga 369, and 5-HTP (only when I'd gone CT), and drinking lots of water and green tea.
No matter how I felt I exercised every day (a wobbly walk in the park), did crosswords (badly) and ate little and often. I did not Google anything about Effexor at that point, it just made me obsess.
I also smoked a teeny tiny bit of cannabis a couple of times when things got really rough. I do not normally smoke it at all.
I stopped taking it as it made me numb to all emotions, I felt I was living behind a glass screen, just tapping on the glass. Even my skin felt numb!
I am only five weeks off it, but I do feel better now. I laugh, I cry, I have more effect. I am not out of the woods but I know that I will never ever take it again.
I also made a mantra for myself. Every time I had a brain zap or vomited I told myself 'This is one step closer to getting off Effexor'.
If you want to know anything else just ask. I wish you good luck, it can be done xx