Medication (usually some form of psychostimulant such as
RitalinRitalin
Ritalin la
Ritalin-sr,
AdderallAdderall
Adderall xr (adderrall), Metadate, Concerta) can be quite effective in diminishing hyperactivity and thereby increasing attention. Oppositional behavior is usually best managed by way of behavior management, though some oppositional children who also display ADHD sometimes take a medicine such as Clonidine or Tenex in addition to their stimulant medication. It sounds like the evaluation you are undertaking is the sensible thing.