What do systematic reviews say?

Autologous blood or PRP vs placebo at 3 months' follow‐up

• Autologous blood and platelet‐rich plasma injection therapy for lateral elbow pain 2021 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Xiongshao capsule (XSC) plus conventional western medicine (CWM) vs conventional western medicine (CWM) plus placebo

The review found no eligible studies for this question.

• Xiongshao for restenosis after percutaneous coronary intervention in patients with coronary heart disease 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

NB‐UVB vs placebo

The review found no eligible studies for this question.

• Phototherapy for atopic eczema 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Paliperidone palmitate vs placebo

The review found no eligible studies for this question.

• Paliperidone palmitate for schizophrenia 2012 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Spironolactone 100 mg vs placebo

The review found no eligible studies for this question.

• Interventions for hirsutism (excluding laser and photoepilation therapy alone) 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Finasteride 5 mg to 7.5 mg vs placebo

The review found no eligible studies for this question.

• Interventions for hirsutism (excluding laser and photoepilation therapy alone) 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin 500 mg to 2550 mg per day vs placebo

The review found no eligible studies for this question.

• Interventions for hirsutism (excluding laser and photoepilation therapy alone) 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Flutamide 250 mg b.i.d. vs placebo

The review found no eligible studies for this question.

• Interventions for hirsutism (excluding laser and photoepilation therapy alone) 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Urea‐containing moisturisers vs vehicle, placebo or no moisturiser

The review found no eligible studies for this question.

• Emollients and moisturisers for eczema 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Glycerin/glycerol‐containing moisturisers vs vehicle or placebo

The review found no eligible studies for this question.

• Emollients and moisturisers for eczema 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

NSAIDs vs placebo

• Non‐steroidal anti‐inflammatory drugs for acute gout 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  Low