Over the last decade, poisonings and deaths linked to the use of local anesthetics have decreased. Even so, poisonings from one commonly used anesthetic, lidocaine , have increased in the United States, according to two new studies from the University of Illinois Chicago.

By analyzing data from reports to national Poison Control Centers and to the Food and Drug Administration from 2010 to 2020, UIC researchers found total reports of poisonings fell 50% in that period. But poisonings from lidocaine increased more than 50% in less than half that time, between 2016 and 2020. The findings are published in Regional Anesthesia & Pain Medicine and the British Journal of Anesthesia.

Local anesthetics, including lidocaine, are widely used in medical care to manage pain before, during and afte

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