Which of the following drugs has been found to be useful in acute severe asthma?: (A) Magnesium Sulphate, (B) Anti-leukotrine, (C) Cromolyn Sodium, (D) Cyclosporine
Answer is A. Ans. (A) Magnesium sulphate(Ref: Harrison 17th/e p1605)Magnesium sulphate by i.v. or inhalational route has been used for the treatment of acute severe asthma. All other drugs mentioned in the options are used for prophylaxis of asthma.