<unk>  is believed to act as an antagonist on voltage-gated sodium channels to affect the permeability of neuronal membranes; how this inhibits pain sensations and the exact mechanism of action of<unk>  are, however, unknown.
Proxymetacaine
Oxybuprocaine
Noribogaine
Ibogaine
Procaine
Tetracaine
Levobupivacaine
Iontocaine