Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

603 questions · 627 findings · 69 reviews · Pain, Palliative and Supportive Care

No studies found 111 · 17.7%GRADE not reported 27 · 4.3%Very low 191 · 30.5%Low 138 · 22%Moderate 100 · 15.9%High 60 · 9.6%

NSAIDs vs placebo

Substantial benefit: At least 50% reduction in pain, or PGIC much improved · adults with fibromyalgia

It is very uncertain whether NSAID changes substantial pain relief: at least 50% reduction in pain, or PGIC… compared with placebo (very low certainty).

1 finding from 1 review

NSAIDs vs placebo

Moderate benefit: At least 30% reduction in pain, or PGIC much or very much improved · adults with fibromyalgia

It is very uncertain whether NSAID changes moderate pain relief: at least 30% reduction in pain, or PGIC much… compared with placebo (very low certainty).

1 finding from 1 review

Methadone vs placebo

Moderate benefit: At least 30% reduction in pain, or PGIC much or very much improved · adults with chronic neuropathic pain
1 finding from 1 review