Two years ago when I was admitted to the State Psychiatric facility I was placed on 800mg, I wasn't worked up to it either, I was immediately a zombie. I had no feelings, no insight to anything anymore, no short term memory, etc it was awful. Though I didn't even realize this until I got out of that place and got a doctor that realized I was way over medicated by seroquel and was tapered down in a controlled setting to 100 mg. I functioned well on it. I was taken off it when I went on a Lithium and Haldol mix but I shook so much on it even with taking cogentin to deter the shaking that I was taken off after a little over a month of being on the lithium. I hope it works well for you though just remember to stay vocal about any symptoms you have with the lithium!!