However
ethical questions have been raised about the legitimacy of such
pharmacological sedation in case of an existential suffering,
related to hopelessness, loss of autonomy and of meaning of life,
and it has been argued that the adequate approach to relieve
such existential suffering consists mainly in moral support and
accompanying, rather than technology and drugs [8]. But some
other authors denied any validity to distinction between physical
or existential of distress sources, which deserve altogether CSD
when refractory to other measures [17].