F...! It is Lithium! I missed a dose and a half of Lithium. I order the meds through the mail, expected them on Sat but they arrived on Mon only. On Sat I took 2 pills instead of 3 and on Sunday, none. I am THAT sensitive, f...! It is first time in more than a year that I miss a dose of something. And I knew that I am sensitive so I took extra Depakote when I had no Lithium, thinking that it is anti-manic, too, but nooo, it is Lithium that does the job. F...!