Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

26 questions · 29 findings · 4 reviews · Headline outcomes only

No studies found 16 · 55.2%GRADE not reported 6 · 20.7%Very low 0 · 0%Low 4 · 13.8%Moderate 3 · 10.3%High 0 · 0%

Paracetamol plus ibuprofen (oral or IV) vs ibuprofen plus placebo (oral or IV) or no intervention

Failure of PDA closure after first course of treatment (assessed by post‐treatment ECHO) · preterm or low birth weight infants with PDA

Paracetamol plus ibuprofen (oral or IV) showed no clear difference in failure of PDA closure after first course of treatment (assessed by… compared with ibuprofen plus placebo (oral or IV) or no intervention (low certainty).

1 finding from 1 review

Paracetamol plus ibuprofen (oral or IV) vs ibuprofen plus placebo (oral or IV) or no intervention

Necrotizing enterocolitis during initial hospital stay (by radiological diagnosis) · preterm or low birth weight infants with PDA

Paracetamol plus ibuprofen (oral or IV) showed no clear difference in necrotizing enterocolitis during initial hospital stay (radiological… compared with ibuprofen plus placebo (oral or IV) or no intervention (low certainty).

1 finding from 1 review

Ibuprofen vs paracetamol

Serious adverse events, defined as any medical event at any dose that results in death, is life‐threatening, requires hospitalisation (or prolongation of existing hospitalisation) or results in permanent damage or disability (FDA 2016) · children with acute postoperative pain

The review found no eligible studies for this question.

1 finding from 1 review

Interventions (ibuprofen, tolfenamic acid, aspirin, tranexamic acid) vs placebo or active comparators (paracetamol, tranexamic acid)

Menstrual blood loss: mean loss

Interventions (ibuprofen, tolfenamic acid, aspirin, tranexamic acid) showed no clear difference in menstrual blood loss (alkaline hematin method) compared with placebo or active comparators (paracetamol, tranexamic acid); GRADE not reported.

2 findings from 1 review

Interventions (ibuprofen, tolfenamic acid, aspirin, tranexamic acid) vs placebo or active comparators (paracetamol, tranexamic acid)

Duration of bleeding (menstrual diary)

Interventions (ibuprofen, tolfenamic acid, aspirin, tranexamic acid) showed no clear difference in duration of bleeding (menstrual diary) compared with placebo or active comparators (paracetamol, tranexamic acid); GRADE not reported.

1 finding from 1 review