Lithium is a great medicine. I started @ 900mg, like most doctors precribe, and it was too much to handle.
I lowered myself to 600mg and doing GRRRRREAT!!!!. Blood level @ .5, which the shrink likes it. To the point of not wanting to give me blood tests anymore. I want the blood tests.
Even @ 600 it's not child's play. I've met people only taking 300mg.
It's not the Lithium per se that brings trouble. It's the dosage.
It takes a while thought, like a month to start working. My 0.02