Its action depends on the type of fibers that are stimulated. When large diameter A0 fibers are stimulated, the effect is segmental analgesia conventional while if the small diameter A8 fibers are stimulated, the effect is extra segmental analgesia.
Su acción depende del tipo de fibras estimuladas, ya que si estimula fibras A0 de diámetro grande produce analgesia segmentaria convencional, y si estimula fibras A8 de diámetro pequeño produce analgesia extra segmentaria.