Magnesium Sulfate Versus Ipratropuim Bromide in Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Patients received ipratropium bromide (IB group, 0.5 mg in 3 mL of normal saline) delivered via aerosol mask at 10 L/min driven by pressurised air. Simultaneously, patients received intravenous placebo (10 mL of normal saline). Thereafter 4 doses of nebulised IB with terbutaline are administered at 30 min intervals.

Patients received magnesium sulfate (MgSO4 group, 150 mg in 4 mL of normal saline)delivered via aerosol mask at 10 L/min driven by pressurised air. Simultaneously, additional magnesium sulfate is given as an intravenous bolus (1.5g in 10 ml). Patients received thereafter 4 doses of nebulized magnesium sulfate with terbutaline at 30 min intervals.