when i first started on prozac 20 mg i was so spaced out for a few weeks then felt great then something happened in july and i was put up to 40mg i went down the hill so fast was wanting to kill myself, then within a few weeks i went up to 60mg, A year on and the depression is still here the feeling of emptyness is awful, i recon im amune to them now, just give it time and u will feel fine in a few weeks. I hope. love xxxxxxx