Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

59 questions · 60 findings · 37 reviews

No studies found 21 · 35%GRADE not reported 7 · 11.7%Very low 13 · 21.7%Low 10 · 16.7%Moderate 8 · 13.3%High 1 · 1.7%

Betahistine vs placebo

Other adverse effects (yes or no) · patients with subjective idiopathic tinnitus
2 findings from 1 review

Antifibrinolytic therapy (tranexamic acid or epsilon aminocaproic acid) vs Placebo, no intervention or usual care (with or without placebo)

Side effects or other adverse events · People with haemophilia (A or B) undergoing minor oral surgery or dental extractions

Antifibrinolytic therapy (tranexamic acid or epsilon aminocaproic… showed no clear difference in side effects or other adverse events compared with placebo, no intervention or usual care (with or without placebo) (low certainty).

1 finding from 1 review

Chlorhexidine (vaginal wash or gel/cream) vs placebo or no treatment

Adverse (mild) effects in the mother · women with vaginal or rectal colonization with GBS during labour and their preterm/term infants

It is very uncertain whether chlorhexidine (vaginal wash or gel/cream) changes adverse (mild) effects in the mother compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Amifostine vs no treatment/placebo

Adverse effects (other reported events) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review

Pilocarpine vs no treatment/placebo

Adverse effects (other reported events) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review