Lithium was the only drug that helped me. Two weeks on it and the ideations were gone. Of course it also requires monthly blood tests, and for me being nauseous every morning but the positive effects did stay after I discontinued.
At least in my case, I didn't need to continue with the monthly blood work once my optimum level was found. Also I fortunately never experienced the nausea you mention but did experience tremors occasionally at the beginning, when trying to find the right level. Too high and they would begin to manifest.
