Translations:Insulin (medication)/23/en

Since January 2006, all insulins distributed in the U.S. and some other countries are synthetic "human" insulins or their analogues. A special FDA importation process is required to obtain bovine or porcine derived insulin for use in the U.S., although there may be some remaining stocks of porcine insulin made by Lilly in 2005 or earlier, and porcine lente insulin is also sold and marketed under the brand name Vetsulin(SM) in the U.S. for veterinary usage in the treatment of companion animals with diabetes.