hi. -all- tranquilizers can cause apathy. w/ an antidepressant in the mix, that effect can be more pronounced, for some people. ritalin can counteract some of the sedation from tranquilizers and other psych drugs and help a bit with mood, concentration, apathy, fatigue, etc.

have you tried anticonvulsants? lamictal is popular for some people w/ depression. it takes a while to get up to an effective dose, but it works for a lot of people. has a different adverse effect profile than the tranquilizers.

hope this helps.