Insulin quality questions have diabetes experts scrambling

Insulin graphic by MGN.
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TRENTON, N.J. (AP) — A tiny, preliminary study found that insulin bought at a number of pharmacies in two states did not meet quality standards.

Though the results were not definitive, the study has raised concerns in the diabetes community and calls for further testing.

The study author, a pharmacist, bought vials of insulin at several pharmacies and found that on average, the vials had less than half of what was listed on the label and none met a minimum standard.

The study tested only 18 vials and questions have been raised about the testing method used. But given potentially serious implications for millions of diabetics, top diabetes groups now are planning a large study they believe will reassure patients.

For now, all say patients should continue taking their insulin as prescribed.