Hi there, thanks for asking. Methadone
can be discontinued after participating group therapy and psychotherapy
and family therapy. All of them are the factors which are affecting him to be dependent to a medication. Some internal factors (for example if he is a dependent person, etc) should be explored gradually in the therapy and should be addressed. Family should learn how to deal with this issue (if he is dependent, family should know how to deal with this issue, etc). I wish for him a good health.