Insulin is an hormone which is used to treat diabetes. When the diabetic's pancreas does not make its own insulin, or when it does not make enough, insulin therapy is prescribed.
Recommended Resources
Delves into the makeup and use of insulin, including fairly scientific diagrams and explanations, as well as offering a free diabetes newsletter.
http://www.endocrineweb.com/diabetes/2insulin.html
Insulin Therapy for Diabetes Past, Present and Future
Delves into insulin therapy as it was practiced from 1921, when it was first discovered the problem diabetics were actually having, as it is now used, and the future, when scientists perfect an insulin which is like that the pancreas makes.
http://www.medicinenet.com/script/main/art.asp?articlekey=11441
Insulin Therapy Resource Center
This web site acts as a hub for those looking for information about insulin. It includes numerous articles about insulin therapy, news headlines, and details about common insulin therapy drugs.
http://www.medscape.com/resource/insulin
Using Insulin to Manage Blood Sugar
Sets forth advice to diabetics who must use insulin and describes how insulin affects the blood sugar and the role it plays.
http://www.mayoclinic.com/health/diabetes-treatment/DA00010
