Patient discussion about regular insulin
Q. what does an insulin shot do? and what is it good for? A. Insulin is a hormone (substance that controls the activity of the body) that enables muscles and fat to use the glucose (sugar) we get from the diet as a source of energy for activity or for storage as fat. Thus, it lowers the concentration of glucose in the blood. It's produced and secreted from the pancreas, a gland located in the back of the abdomen. When people don't have insulin, or if the body doesn't respond to insulin (essentially diabetes mellitus type 1 and 2, respectively), therapy with insulin helps the body maintain a normal level of glucose. Excessive concentration of glucose in the blood is termed "hyperglycemia" and is deleterious in the long term.
You may read more here: http://en.wikipedia.org/wiki/Insulin
Q. Why is insulin injected and not taken as a pill? A. so if that's the case, why can't you use a patch (like a nicotine patch)? wouldn't that do the same trick?
Q. is there an alternative for the Insulin shots? something less painful but yet effective as the old way? A. Here is a good site on alternative insulin delivery: http://www.diabetes.org/for-parents-and-kids/diabetes-care/alternative-insulin.jsp Hope this helps.
More discussions about regular insulin