Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,288 questions · 3,354 findings · 516 reviews · Headline outcomes only

No studies found 720 · 21.5%GRADE not reported 164 · 4.9%Very low 950 · 28.3%Low 932 · 27.8%Moderate 434 · 12.9%High 154 · 4.6%

Pine bark extract vs placebo

Improvement of asthma symptoms; · children and adults with asthma diagnosed by American Thoracic Society criteria

It is very uncertain whether pine bark extract changes decrease in asthma symptoms compared with placebo (very low certainty).

1 finding from 1 review

Pine bark extract vs placebo

Participants off albuterol inhaler · children and adults with asthma diagnosed by American Thoracic Society criteria

It is very uncertain whether pine bark extract changes participants off albuterol inhaler compared with placebo (very low certainty).

1 finding from 1 review