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Poisoning by sodium channel blocking agents
1Department of Medical Toxicology, Good Samaritan Regional Medical Center, Phoenix, Arizona, USA.
Critical Care Clinics
|October 23, 1997
Abstract:
Poisoning by drugs that block voltage-gated sodium channels produces intraventricular conduction defects, myocardial depression, bradycardia, and ventricular arrhythmias. Human and animal reports suggest that hypertonic sodium bicarbonate may be effective therapy for numerous agents possessing sodium channel blocking properties, including cocaine, quinidine, procainamide, flecainide, mexiletine, bupivacaine, and others.