Insulin glargine
"My daughter is Two year old has been diabetic type 1 since last valentine day.  She uses 2 Units at 7:00 AM and 1.5 units at 7:00 PM. Glargine is great but when used in such small quantity it is very difficult to get accurate dosage using pen. The glargine pen does not have half unit dial and it would be really great if the company introduced a pen more suitable for children.  For now I have to draw insulin with syringe, which is more work and syringe needles are longer so it hurts more."