Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

49 questions · 51 findings · 7 reviews · Headline outcomes only

No studies found 19 · 37.3%GRADE not reported 3 · 5.9%Very low 10 · 19.6%Low 14 · 27.5%Moderate 5 · 9.8%High 0 · 0%

Herbal treatment vs placebo

Participant‐reported pain relief of 30% or greater · adults with neuropathic pain

It is very uncertain whether herbal treatment changes participant‐reported pain relief of 30% or greater Immediately… compared with placebo (very low certainty).

1 finding from 1 review

Herbal agents vs placebo

Reduction in crying duration Difference before and after treatment (hours per day of crying) · patients with infantile colic

Herbal agents may leads to higher reduction in crying duration Difference before and after treatment… compared with placebo (low certainty).

1 finding from 1 review

Herbal agents vs placebo

Responders Number of infants who improved after treatment · patients with infantile colic

Herbal agents probably leads to higher responders Number of infants who improved after treatment compared with placebo (moderate certainty).

1 finding from 1 review

Shengmai plus usual treatment vs usual treatment alone

Lack of improvement in heart failure ( NYHA class improved < I class or worsening of heart failure) · patients with heart failure

Shengmai plus usual treatment may leads to lower lack of improvement in heart failure (NYHA class improved < I class… compared with usual treatment alone (low certainty).

1 finding from 1 review

Single herb plus conventional intervention vs conventional intervention

Visual improvement at end of treatment, as defined by two or more Snellen lines · people with diabetic retinopathy

Single herb plus conventional intervention may leads to higher visual acuity (gain of ≥ 2 lines) (end of treatment) compared with conventional intervention (low certainty).

1 finding from 1 review