Insulin nomenclature is clearly confusing. Among other reasons:

• The same product may have several different names; the names may be different in the U.S. compared to other countries; the same product may be made by several manufacturers and given differing names.
• The product may be from different sources (previously all insulin came from animal pancreases: beef, pork, or mixed beef/pork; but now-a-days, insulins usually are semisynthetic human).
• Insulins are classified by duration of action,...