Hi Blackbird & Cathy,
i had the same problem with both antipsychotics and SSRIs, which makes sense cause there are some ideas going round that SSRIs might deplete dopamine levels too... (?)
for me the only thing that helped was lithium + fluoxetine (which is supposed to work differently from other SSRIs for some reason... read some stuff, not enough to know the details.) not on meds now.
i havent heard of anything that stops avolition, only combinations that don't cause it or cause it less... just messing around with things until they work... not ideal i know.
hope you find something that works tho.
...if anyone finds a cure for avolition i think there would be a lot of people who'd want to know!