Defenders of patient autonomy have successfully supported the legal ad
option of advance directives. More recently, some defenders of patient
autonomy have also supported the legalization of voluntary active eut
hanasia. This paper explores the wisdom of combining both practices. I
f euthanasia were to become legal, should it be permitted by advance d
irectives? The paper juxtaposes the most significant doubts about adva
nce directives, with the most significant doubts about euthanasia. It
argues that the doubts together raise more concern about the combined
practices than about either euthanasia or advance directives separatel
y. Not all cases of voluntary euthanasia by advance directive are equa
lly problematic, however. Advance directives can help in the defense o
f euthanasia for patients who make the request in advance and reaffirm
it under circumstances of severe suffering.