Gaur 2008.

Methods	Parallel RCT.
Participants	Age: 18 to 60 years. Location: emergency department of a tertiary referral centre in India. Acute asthma and FEV1 < 30% predicted. Intervention: 30. Control: 30.
Interventions	Intervention: nebulised similarly using isotonic MgSO₄ (3 mL of 3.2 g%) as a vehicle ‒ unsure if this is “Nebulized salbutamol and ipratropium”. Control: nebulised salbutamol and ipratropium using isotonic saline as a vehicle thrice at 20‐min intervals.
Outcomes	FEV% predicted at 120 minutes, pooled discharge rate proportion of groups attaining PEF > 60% predicted and relief in dyspnoea at 30, 60, 90, 120 min).
Notes	Abstract only. Funding: not reported.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomised.
Allocation concealment (selection bias)	Unclear risk	Not stated.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Single blind – no further details.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Single blind – no further details.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Not stated.
Selective reporting (reporting bias)	High risk	1 outcome partially reported and not significant. Abstract only.