Findings

What do systematic reviews say?

3 questions · 3 findings · 3 reviews · Movement Disorders

No studies found 1 · 33.3%GRADE not reported 0 · 0%Very low 1 · 33.3%Low 1 · 33.3%Moderate 0 · 0%High 0 · 0%

Duration of effect · cervical dystonia

The review found no eligible studies for this question.

1 finding from 1 review

Botulinum toxin type A versus anticholinergics for cervical dystonia 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Duration of effect 618 participants (5 RCTs) · cervical dystonia

It is very uncertain whether botulinum toxin type A changes duration of effect 618 participants (5 RCTs) compared with placebo (very low certainty).

1 finding from 1 review

Botulinum toxin type A therapy for cervical dystonia 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Very low

Duration of effect (when effects started to wane) · adults with blepharospasm

1 finding from 1 review

Botulinum toxin type A therapy for blepharospasm 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Low