The role of magnesium sulfate in the acute and chronic management of asthma

Evidence suggests that intravenous MgSO4 is beneficial in acute asthma, while the evidence for inhaled MgSO4 is less convincing. Moreover, the role of replacement therapy with oral magnesium remains to be clarified. The use of intravenous MgSO4 remains uncommon, with emergency physicians appropriately restricting its use to patients with severe exacerbations.