Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

891 questions · 902 findings · 317 reviews

No studies found 210 · 23.3%GRADE not reported 56 · 6.2%Very low 236 · 26.2%Low 220 · 24.4%Moderate 146 · 16.2%High 34 · 3.8%

Antifungal drugs absorbed from GI tract (fluconazole, ketoconazole, itraconazole) vs Antifungal drugs not absorbed from GI tract

Toxicity (adverse events probably due to drug) · Patients with cancer receiving chemotherapy and/or radiotherapy

Antifungal drugs absorbed from GI tract showed no clear difference in toxicity (adverse events probably due to drug) compared with antifungal drugs not absorbed from GI tract; GRADE not reported.

1 finding from 1 review

Carisbamate vs placebo

Drowsiness/somnolence (Event rate during treatment, length of treatment varied across trials) · people with drug‐resistant focal epilepsy

Carisbamate may leads to higher adverse events: somnolence compared with placebo (low certainty).

1 finding from 1 review

Antibiotics vs placebo

Discontinuation of medication due to adverse events · adults with renal vasculitis for maintenance therapy

Antibiotics showed no clear difference in adverse events causing study drug discontinuation compared with placebo (low certainty).

1 finding from 1 review

Rituximab (2 x 1000 mg) plus methotrexate vs methotrexate

Discontinuation of medication due to adverse events · patients with rheumatoid arthritis

Rituximab (2 x 1000 mg) plus methotrexate showed no clear difference in discontinuations due to adverse events Analysis 6.3 compared with methotrexate monotherapy (moderate certainty).

1 finding from 1 review

Adjunctive Coriolus versicolor vs no adjunctive treatment

Diarrhoea · adults (aged 18+) with colorectal cancer

It is very uncertain whether adjunctive Coriolus versicolor changes adverse events: Diarrhoea ‐ compared with no adjunctive treatment (very low certainty).

1 finding from 1 review