Inhaled Insulin Delivery System

The inhaled insulin delivery system provides insulin as a spray or a dry powder inhaled through the mouth directly into the lungs where it passes into the bloodstream. Researchers also are investigating systems for delivering insulin intranasally (as a nose spray). Although serious side effects have not occurred during studies, more research is needed to examine the long-term safety of both inhaled and intranasal insulin treatments.

This approach for taking insulin is under development.

source: http://diabetes.niddk.nih.gov/dm/pubs/insulin/index.htm