Salbutamol, the most commonly used bronchodilator, is a chiral drug with R and S Isomers. e commonly used formulation is a racemic mixture that contains equal amount of both R and S isomer [1-3]. β2-agonist Racemic Salbutamol has been the mainstay of treatment for bronchial smooth muscle contraction since 1982 [4]. β2-agonist are Racemic mixture that are composed of a 50:50 ratio of (R) and (S) isomers. e R isomer (referred to as levosalbutamol) is the therapeutically active bronchodilator by increasing intracellular calcium in airway smooth muscle cell in vitro which promotes smooth muscle contraction opposing bronchodilation [5,6]. Current evidence indicates that the S isomer is devoid of any bronchodilator activity [7]. Also, levosalbutamol (LEV) the active component of racemic salbutamol (RAC) when administered as the single isomer avoids all of the potential adverse e ect of (S) isomer.