What medications help the negative symptoms of schizophrenia? Do any help the lack of interest and joy, any to give me energy so I don't feel like a half-asleep zombie? I lack the ability to pay attention, understand my surroundings, and remember anything. 

I've never tried antipsychotics. Medicine worries me, but it seems necessary for me to get any improvement. 

I'm not supposed to gain weight because of another medical issue. I cannot handle any more drowsiness. 

Are there any medicines that would be more likely to help these issues?