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What do systematic reviews say?

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Evidence found and GRADE certainty

3 questions · 3 findings · 1 reviews · Pain, Palliative and Supportive Care

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No studies found 2 · 66.7%GRADE not reported 0 · 0%Very low 1 · 33.3%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Hydromorphone vs fentanyl

Relief of pain · people with moderate to severe cancer pain

The review found no eligible studies for this question.

1 finding from 1 review

Hydromorphone vs oxycodone

Relief of pain · people with moderate to severe cancer pain

The review found no eligible studies for this question.

1 finding from 1 review

Hydromorphone vs morphine

Relief of pain · people with moderate to severe cancer pain

It is very uncertain whether hydromorphone changes participant‐reported pain relief compared with morphine (very low certainty).

1 finding from 1 review