As far as I'm aware, there isn't any specific medication route for SPD. It's mostly going to be addressing your particular concerns. One may try antidepressants for things like the lack of motivation and anhedonia and if you have any depression. If you have some level of psychosis they may add in an antipsychotic. I think often they don't even use medications and just go for therapy. Therapy is usually long-term for SPD.