I take it at night as one dose, but I am like Wander and only have the nausea if I have an empty stomach or take it after drinking a bit (had that lovely experience last night, even).

I never experienced the lithium nausea when I first started, and don't really have it unless I do the above mentioned....but I do have the shakes and metal mouth that people sometimes get.

....so a nice trade-off I guess? :/