This is from a British medical association (BMA) document:
Arguments against Physician assisted suicide.:
1. Laws send social messages. An assisted dying law, however well intended, would alter
society’s attitude towards the elderly, seriously ill and disabled, and send the subliminal
message that assisted dying is an option they ‘ought’ to consider.
2. So-called ‘safeguards’ are simply statements of what should happen in an ideal world.
They do not reflect the real-world stresses of clinical practice, terminal illness and family
dynamics. It is impossible to ensure that decisions are truly voluntary, and that any coercion
or family pressure is detected.
3. For most patients, high-quality palliative care can effectively alleviate distressing symptoms
associated with the dying process. We should be calling for universal access to high quality
generalist and specialist palliative care, rather than legalising physician-assisted dying.
4. Licensing doctors to provide lethal drugs to patients is fundamentally different from
withdrawing ineffective life-sustaining treatment, and crosses a Rubicon in medicine. The
role of doctors is to support patients to live as well, and as comfortably, as possible until they
die, not to deliberately bring about their deaths.
5. Currently, seriously ill patients can raise their fears, secure in the knowledge that their doctor
will not participate in bringing about their death. If doctors were to have the power to provide
lethal drugs to patients to end their lives, this would undermine trust in the doctor-patient
relationship. Some patients (particularly those who are elderly, disabled or see themselves
as ‘a burden’) already feel that their lives are undervalued and would fear that health
professionals will simply ‘give up’ their efforts to relieve distress, seeing death
as an easy solution.
6. Once the principle of assisted dying has been accepted, the process becomes normalised
and it becomes easier to accept wider eligibility criteria or to widen eligibility through the use
of anti-discrimination legislation.
7. In modern clinical practice many doctors know little of patients‘ lives beyond what the busy
doctor may gather in the consulting room or hospital ward. Yet the factors behind a request
for assisted dying are predominantly personal or social rather than clinical. Assisted dying is
not a role for hard-pressed doctors.
https://www.bma.org.uk/media/4394/bma-arguments-for-and-against-pad-aug-2021.pdf