I was on lithium and got off of it for a month to try a new medicine that just didn't work. So I am now being put back on it. I was just wondering if anyone else has had to restart lithium and how long did it take to start working the second time? If you have restarted lithium did you develop any side effects the second time around that you didn't have at first. I am terrified of lithium because of all the bad effects it can have and the dangers of it, thus why i got off of it. I was taking 300 mg once daily and now will be taking 300 mg twice a day. Is this a normal dose? Any help that can be given would be great.