What is the theoretical benefit of levalbuterol compared to albuterol?

Levalbuterol is a medication that contains only the R-isomer of albuterol, which is the active component responsible for bronchodilation. The theoretical benefit of this is that by using a formulation with only the R-isomer, patients may experience fewer side effects that are often associated with the S-isomer, which does not contribute to bronchodilation and can potentially lead to increased heart rate and other adverse effects. Therefore, the use of levalbuterol might provide an advantage in terms of a more favorable side effect profile while still yielding effective bronchodilation.

The other options do not accurately reflect the primary theoretical benefits associated with levalbuterol. While there may be discussions about enhanced delivery or bronchodilation, the main distinction lies in the isomeric purity and its implications for side effects. The claim regarding lower dosage requirements applies in the context of using levalbuterol, but it isn't a theoretical benefit that stands on its own compared to the reduction of unwanted effects from the S-isomer.