Hi.
First I need to know the reason for your child to take those medications.
oleanz can lead to drowsiness, laziness can be partly due to that.
Demanding in a child can be secondary to anger issues, attention craving, personality issues, etc.
It's very important to address these issues as neglect can be a reason for social inadaptability and further may disturb his ability to team work.
Hope this is useful
Next Steps
consult a psychiatrist, ask for diagnostic psychometry