I have been on lamotrigine 100 mg since July 2013 as an add on with Viibryd. I had to stop the Viibryd (although, besides the side effects I loved it) because of the side effects (brain zaps and sleep paralysis). I am not sure about what my diagnosis is. I have tried several times to wean off Lamotrigine by reducing 25 mg each 2 weeks. I do okay until 25 mg and am extremely irritable and moody. My new psychiatrist is putting me on 0.5 mg Klonopin.