Is anhedonia temporary or permanent after taking parenteral neuroleptics?

I have searched for an answer to this question online and by doctors but have not been able to get a definitive answer. (I do not think there is any difference if parenteral or not). I think it depends how long you have been taking the neuroleptics. I've eaten neuroleptics against tourettes in periods, tested about all different varieties (haldol, risperidon, abilify, zyprexa, seroquell...) and I've always experienced social anhedonia, akathisia and emotional blunting, and I was afraid that the side effects could be permanent. Therefore, I do not put up with it I ate haldol for 2 years and ended December 25, 2011, akathisia disappeared relatively fast, (1-2 months), anhedonia, and emotional blunting has become progressively better and I can once again enjoy hanging out with friends, play computer games and watch TV series, etc. But I'm still not completely recovered to where I was and it's been a year now. But i still think and have the hope that my brain will recover from this! before this last period with haldol I ate ABILIFY in 3 months and it took almost exactly 3 months after I had stopped before everything came back! it all happened so fast, first it came gradually, then it came all of one second, it felt like a light switch was pulled in my head and I woke up out of the "fog" and it felt amazing! Now I have been eating neuroleptics for 2 years and I think it will take about as long before it is over, but I can not be sure. But a neuro specialist that I talked to said it could take a long time before the brain is restored.