NCIt definition : The hydrochloride salt form of pramoxine, a morpholine derivative with local anesthetic
property. Pramocaine hydrochloride decreases the permeability of the neuronal membrane
to sodium ions by reversibly binding to and inhibiting voltage-gated sodium channels.
This results in stabilization of the membrane and, thereby inhibiting the ionic fluxes
required for membrane depolarization, hence resulting in the failure to initiate a
propagated action potential and subsequent conduction blockade.;