<P> There is tentative evidence for topical lidocaine for neuropathic pain and skin graft donor site pain . </P> <P> As a local numbing agent, it is used for the treatment of premature ejaculation . </P> <P> Lidocaine is also the most important class - 1b antiarrhythmic drug; it is used intravenously for the treatment of ventricular arrhythmias (for acute myocardial infarction, digoxin poisoning, cardioversion, or cardiac catheterization) if amiodarone is not available or contraindicated . Lidocaine should be given for this indication after defibrillation, CPR, and vasopressors have been initiated . A routine preventative dose is no longer recommended after a myocardial infarction as the overall benefit is not convincing . </P> <P> A 2013 review on treatment for neonatal seizures recommended intravenous lidocaine as a second line treatment, if phenobarbital fails to stop seizures . </P>

When is lidocaine used to treat ventricular tachycardia