Bhounsule 1990

Methods	Randomised, double blind, placebo control, single oral dose. Study duration 6 h. Baseline PI = severe Self assessment at t = 0, 0.5,1.5, 2, then hourly up to 6 h.
Participants	Post‐episiotomy N = 100 All F Age: Not reported
Interventions	Dipyrone 500 mg, n = 20 Ibuprofen 400 mg, n = 20 Paracetamol 600 mg, n = 20 Aspirin 600 mg, n = 20 Placebo, n = 20
Outcomes	PI: standard 4 point scale (0‐3) PR: non‐standard 4 point PR (1‐4) ‐ standard wording, but nonstandard numbering Adverse events
Notes	Oxford Quality Score: R1, DB1, W0. Total = 2
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not reported
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding (performance bias and detection bias) All outcomes	Unclear risk	"All tablets pre‐packaged in individual dose packets"