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End-of-life ethics

Does the double-effect rule really justify palliative sedation?

Faris H, Dewar B, Dyason C, et al. · BMC medical ethics · 2021

Open access · cc by · source: Europe PMC

The authors argue that the classic double-effect justification does not fit palliative sedation, and that doctors invoke it mainly to manage their own moral discomfort about death.

Study at a glance

Design
Qualitative / archival — Philosophical argument testing palliative sedation against the doctrine of double effect's conditions, supported by a PubMed bibliometric count of mentions of the doctrine.
N
No participants; the bibliometric search found 627 references to the doctrine, used only to show where it is invoked.
Population
The practice of palliative sedation and analgesia at the end of life, and the medical literature that justifies it
Outcome
Thesis that the doctrine of double effect is inappropriately applied to palliative sedation because its conditions on goods, causes and intentions are not met

Structured fields used in claim comparison tables when every cited study has a complete layer.

Key findings

Of 627 medical articles mentioning the doctrine, 432 (68.9%) concerned end-of-life care, even though its logic would fit ordinary treatments too. They argue that no major moral framework cleanly ranks relief of suffering as a good outweighing death as a bad, that evidence does not show sedation actually hastens death, and that surveys show many physicians partly intend death. They conclude the doctrine is misapplied and that relying on it encourages oversimplified, detached ethical reasoning.

Methodology

The authors set out the standard conditions of the doctrine of double effect and checked palliative sedation against three of them: that there is a clear good and a clear bad effect, that the act causes both, and that the bad effect is not intended. They also searched PubMed to count where the doctrine is mentioned in medical writing, and drew on published physician surveys and interviews about intentions.

Limitations

The authors say they are neither for nor against the doctrine itself, so the paper does not show double-effect reasoning is wrong in general. The intention argument rests on self-reported surveys from a few countries, which record what physicians say about their intentions rather than their intentions directly. The causation argument cuts both ways: if sedation does not hasten death, the doctrine is unnecessary rather than refuted, and the authors note that no randomised trial settles the question. The bibliometric count only tallies mentions and was not a systematic review.

How this study connects

Role on claims

Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.

  • SupportsEnd-of-life ethicsconcept

    Double effect may be doing less work, and more rhetorical work, than textbooks suggest.

    A conceptual critique argues the doctrine of double effect is misapplied to palliative sedation: no major framework cleanly ranks relief of suffering above death, evidence does not show sedation hastens death, and physician surveys show many partly intend death. Of 627 medical articles mentioning the doctrine, 432 (68.9%) concerned end-of-life care.

    Evidence for the claim as stated.

  • ChallengesEnd-of-life ethicsconcept

    The French palliative-sedation paper rests the sedation/euthanasia line on the clinician's intention; the double-effect critique argues intention is mixed in practice and the doctrine is misapplied, and the three-country interviews show carers invoking intention and 'nature' partly to distance themselves — which the authors warn may distort the truth.

    Same question, contrary or null result.

Open questions

Tensions this paper is part of

From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.

History

When this study was placed

Dated entries from the concept change log — when this paper was added or removed as support, challenge, or qualifier on a claim.

  1. 2026-09-27

    Placed as supporting evidence on End-of-life ethics

    A conceptual critique argues the doctrine of double effect is misapplied to palliative sedation: no major framework cleanly ranks relief of suffering above death, evidence does not show sedation hastens death, and physician surveys show many partly intend death. Of 627 medical articles mentioning the doctrine, 432 (68.9%) concerned end-of-life care.

  2. 2026-09-27

    Placed as a challenge on End-of-life ethics

    The French palliative-sedation paper rests the sedation/euthanasia line on the clinician's intention; the double-effect critique argues intention is mixed in practice and the doctrine is misapplied, and the three-country interviews show carers invoking intention and 'nature' partly to distance themselves — which the authors warn may distort the truth.

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Same topic cluster — not a recommendation engine.