Discussions that mention methadone

Addiction & Recovery board

Imagine - a heroin addict.
Prescription drugs, (methadone 90mls) have stopped, (as this person was having prescription meds. and illegal beside).
This person then is in a position where they can no longer acquire illegal drugs. And so the doctor prescribes 4mls of methadone.
It doesn't seem to make sense to me, the vast difference in amounts. Does it to anyone else??? Also, does anyone have experience of a turnaround following a prison sentence? Following release, isn't that the time when addicts are the most vunerable re overdosing?