daily of intranasal insulin compared with placebo in 24 people with amnestic memory impairment (aMCI) or mild Alzheimer's disease. The insulin was delivered with an electronic atomizer (Reger et al., ...
Medications delivered by such a means include fentanyl transmucosal lozenges, sublingual nitroglycerin, and intranasal DDAVP, and have existed with great clinical success for many years.