Amifampridine works by blocking potassium channel efflux in nerve terminals so that action potential duration is increased. Ca2+ channels can then be open for a longer time and allow greater acetylcholine release to stimulate muscle at the end plate.

Pulsatilla saponin H is a natural product isolated from the Roots of Pulsatilla koreana.

Chiniofon, a halogenated 8-hydroxyquinoline, is used as an antiamebic drug. This type of anti-amebic drug exerts an anti-amebic effect by inhibiting intestinal commensal bacteria and affects amoebic dysentery, but has no effect on extra-intestinal amoebic parasites.