Convulsants (benzylpenic'illin and pentylenetetrazol) on potential clamped myelinated axons from the rat

Abstract
The effect of 2 convulsants, benzylpenicillin and pentylenetetrazol, was tested in potential clamp experiments on single rat myelinated nerve fibers. Concentrations [10 mM] did not affect the permeability properties of the nodal membrane. The convulsive action is probably not mediated through changes in the excitability of central axons. [Benzylpenicillin and pentylenetetrazol are used in experimental models of epilepsy.].