If enough of these reports pile up at the Health Authorities, sanofi-aventis will be forced to change their label so physicians, nurse educators, and patients will be aware that this phenomenon is occurring. I'd suspect the label should be changed so there's a very clear additional sentence in the hypoglycemia section (and in the patient information!) that would read something like this:

"Sudden severe hypoglycemia has been reported after accidental intravenous injection during attempted subcutaneous injection. Patients should be made aware of this phenomenon, and if unexpected severe hypoglycemia occurs shortly after Lantus administration, patients should be observed in a medical setting, and promptly treated with glucagon or intravenous glucose."

BTW, if anyone is thinking I'm anti-Lantus, let me add that I personally use Lantus for treatment of my own diabetes. But I've warned my wife to doublecheck that I don't flake out soon after shooting up!