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Lidocaine, also known as lignocaine and sold under the brand name Xylocaine among others, is a local anesthetic of the amino amide type. It is also used to treat ventricular tachycardia.[7][8] When used for local anaesthesia or in nerve blocks, lidocaine typically begins working within several minutes and lasts for half an hour to three hours.[8][9] Lidocaine mixtures may also be applied directly to the skin or mucous membranes t... [wikipedia]