I want to know the answer to the following question:
As an inhaler, what was epinephrine used to treat?
All the background I'm provided with is that "Injected epinephrine proved to be especially efficacious for the acute treatment of asthma attacks, and an inhaled version was sold in the United States until 2011 (Primatene Mist).". Is that enough to answer the question?
Answer: no