Brevetoxin-3 (PbTx-3) is a potent allosteric voltage-gated Na+ channel activator. Brevetoxin-3 has a high affinity to site 5 of the voltage-sensitive Na+ channels, inhibits the inactivation of Na+ channels.
QAQ dichloride is a photoswitchable compound that blocks voltage-gated Na v and K v channels. Its channel-blocking activity is observed in the trans form of the azobenzene photoswitch, while the cis form does not exhibit this effect. This compound is membrane-impermeant and selectively enters pain-sensing neurons expressing endogenous import channels. QAQ dichloride functions as a light-sensitive analgesic and provides a valuable tool for investigating signaling mechanisms involved in acute and chronic pain [1] [2].
Oe-9000 is a blocker of voltage-gated Na(+) currents in neurons. It reversibly reduces rapidly activating and inactivating TTX-sensitive (TTX-S) Na(+) currents as well as slowly activating and inactivating tetrodotoxin-resistant (TTX-R) Na(+) currents at