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.
ILS-920 is a Rapamycin analog characterized by diminished immunosuppressive effects but remarkable neuroprotective properties. It exhibits selective binding affinity towards the immunophilin FKBP52 as well as the β1-subunit of L-type voltage-gated calcium channels (VGCC). ILS-920 displays a notable 200-fold preference for FKBP52 over FKBP12.