Amifampridines (3,4 Diaminopyridine and 3,4 Diaminopyridine Phosphate): Drugs of Choice for Lambert-Eaton Myasthenic Syndrome

Abstract

Amifampridines have been known to be effective as symptomatic treatment of Lambert-Eaton myasthenic syndrome since 1983. Food Drug Administration (FDA) approved amifampridines, the most studied safe and effective drugs in the neuromuscular diseases, are available for the general use for symptomatic treatment of LEMS, 60 years after the first description of LEMS and 40 years after the first trial of 3,4-DAP in LEMS.