Inhalable insulin is a powdered form of insulin, delivered with a nebulizer into the lungs where it is absorbed, generally more rapidly than subcutaneous insulin.
Afrezza, a monomeric inhaled insulin developed by Mannkind, was approved by the FDA in 2014...Wikipedia
Manufacturer's Website: Afrezza Average retail cost: $353/month
Search Terms: Afrezza, insulin human, Inhalation Powder, diabetes, DM