Question: why is xopenex better than albuterol?
Answer: Because they both contain the active R-isomer of albuterol, they are both effective options. Levalbuterol only contains the active R-isomer of albuterol, which may produce less side effects than the R/S mixture. Albuterol, unlike levalbuterol, comes in other forms such as oral syrups and tablets for different uses.