Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

26 questions · 28 findings · 7 reviews · Headline outcomes only

No studies found 7 · 25%GRADE not reported 0 · 0%Very low 3 · 10.7%Low 8 · 28.6%Moderate 10 · 35.7%High 0 · 0%

Capsaicin vs placebo

Resolution of symptoms · non‐allergic rhinitis

Capsaicin may leads to higher daily record chart symptom resolution 4 weeks post‐treatment… compared with placebo (low certainty).

1 finding from 1 review

Capsaicin vs placebo

Treatment‐related adverse events · non‐allergic rhinitis

The review found no eligible studies for this question.

1 finding from 1 review

Capsaicin vs budesonide

Nasal obstruction during the 4th week of treatment Number of responders · patients with non‐allergic rhinitis

Capsaicin showed no clear difference in nasal obstruction during the 4th week of treatment Number of… compared with budesonide (low certainty).

1 finding from 1 review

Capsaicin vs budesonide

Treatment‐related adverse events · patients with non‐allergic rhinitis

The review found no eligible studies for this question.

1 finding from 1 review

High‐concentration (8%) capsaicin patch vs control patch (0.4%)

Patient Global Impression of Change much or very much improved · adults with postherpetic neuralgia
2 findings from 1 review