Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews · Movement Disorders

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 1 · 100%High 0 · 0%

Adverse events at 4 weeks; 1085 participants (8 RCTs) · cervical dystonia

Botulinum toxin type A probably leads to higher adverse events at 4 weeks; 1085 participants (8 RCTs) compared with placebo (moderate certainty).

1 finding from 1 review

Botulinum toxin type A therapy for cervical dystonia 2020 · Cochrane Headline outcomes only
RR 1.23 [1.05, 1.43]
Studies not reported
Moderate