Insulin Pens: Risk of Transmission of Blood-borne Pathogens from Shared Use

The FDA notified healthcare providers and patients that insulin pens and insulin cartridges are never to be shared among patients. Sharing of insulin pens may result in transmission of hepatitis viruses, HIV, or other blood-borne pathogens. Insulin pens are not designed, and are not safe, for one pen to be used for more than one patient, even if needles are changed between patients because any blood contamination of the pen reservoir could result in transmission of already existing blood-borne pathogens from the previous user. The FDA is working with the Centers for Disease Control and Prevention, professional societies and healthcare organizations to reinforce patient and healthcare provider education about proper and safe use of insulin pens.
Source: http://www.fda.gov/cder/drug/InfoSheets/HCP/insulin_pensHCP.htm

Exubera (insulin human rDNA origin) Inhalation Powder

Pfizer informed healthcare professionals and patients of updated safety information in the WARNINGS section of prescribing information for Exubera, a short-acting insulin you breathe in through your mouth using the Exubera inhaler that helps to control high blood sugar in adults with diabetes. There have been 6 newly diagnosed cases of primary lung malignancies in clinical trials among Exubera-treated patients, and 1 newly diagnosed case among comparator treated patients. There has also been 1 post-marketing report of a primary lung malignancy in an Exubera-treated patient. There were too few cases to determine whether the emergence of these events is related to Exubera. All patients who were diagnosed with lung cancer had a prior history of cigarette smoking. Because of limited availability of Exubera, healthcare professionals should seek alternative treatment options to maintain patients' glycemic control.

Source: http://www.fda.gov/medwatch/safety/2008/Exubera_DHCP.pdf