I have tapered off venlafaxine or effexor all the way from 300mg in increments of 37.5mg (sorta... at first I jumped from 300mg to 150mg which i do not ever recommend). This is my second day at 0mg and I feel brain zapping all the time and I just puked twice within the last two hours. Please if anyone knows of some remedies that have worked or know when this will end please let me know.