Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

241 questions · 264 findings · 24 reviews

No studies found 84 · 31.8%GRADE not reported 5 · 1.9%Very low 83 · 31.4%Low 64 · 24.2%Moderate 21 · 8%High 7 · 2.7%

Opioids vs placebo

Adverse events · RLS

Opioids may leads to higher adverse Events compared with placebo (low certainty).

1 finding from 1 review