levalbuterol

noun

lev·​al·​bu·​te·​rol ˌlev-al-ˈbyü-tə-ˌrȯl, -ˌrōl 

: a beta-agonist bronchodilator administered by oral inhalation in the form of its hydrochloride C₁₃H₂₁NO₃·HCl or tartrate (C₁₃H₂₁NO₃)₂·C₄H₆O₆ to treat bronchospasm associated especially with asthma

called also levosalbutamol

Note: Levalbuterol is an enantiomer of albuterol and is marketed under the trademark Xopenex.