I have gained weight from zoloft and I am just about off of it after about 3 yrs of being on it. I really want to lose that weight. I have read the ssri's inhibit certain enzymes in the liver, slowing down the metabolism, and also the way to lose weight after using ssri's is to take tyrosine to cleanse the liver. is this true at all? I know that xenadrine efx has tyrosine in it, so would that be good to take?