I'm in the process of tapering Pristiq and facing some problems.

I started off 6 months back with 200 mg of Pristiq in a day. Now after slowly tapering I am down to 50 mg once in 36 hours. I've been on 36 hours for a month now and would like to taper it further, but I start getting brain zaps that are awful exactly after 36 hours. I would like to increase the interval to 48 hours but the withdrawal is really bad,I just can't get up,feel really dizzy.

Any advice or story to share?

Thanks!