Voluloride is a conjunctival epithelial cell sodium channel (ENaC) blocker.

Phenamil methanesulfonate, an analog of Amiloride, is a more potent and less reversible epithelial sodium channel (ENaC) blocker with an IC50 of 400 nM. Phenamil methanesulfonate is also a competive inhibitor of TRPP3 and inhibits TRPP3-mediated Ca2+ transport with an IC50 of 140 nM in a Ca2+ uptake assay. Phenamil methanesulfonate is an intriguing small molecule to promote bone repair by strongly activating BMP signaling pathway. Phenamil methanesulfonate is used for the research of cystic fibrosis lung disease.

QAQ dichloride, a photoswitchable voltage-gated Nav and Kv channels blocker, blocks channels in its trans form (of the azobenzene photoswitch), but not in its cis form. QAQ dichloride is membrane-impermeant and only infiltrates pain-sensing neurons that express endogenous import channels. QAQ dichloride acts as a light-sensitive analgesic and can be used for studying of signaling mechanisms in acute and chronic pain.

PF-06305591 dihydrate is a potent and highly selective voltage gated sodium channel NaV1.8 blocker, with an IC50 of 15 nM. An excellent preclinical in vitro ADME and safety profile.

Brevetoxin B (Brevetoxin-2; PbTx-2) is a polyketide neurotoxin produced by Karenia species and other dinoflagellates. Brevetoxin B binds to site 5 on the alpha subunit of voltage-gated sodium channels (IC50=15 nM) on neurons at the neuromuscular junction, causing the channel to open irreversibly at potentials more negative than normal, discharging action potentials repetitively. Brevetoxin B is ichthyotoxic at nanomolar concentrations and is responsible for an illness described as neurotoxic shellfish poisoning.

Mepivacaine is an amide-type local anesthetic agent. Mepivacaine binds to specific voltage-gated sodium ion channels in neuronal cell membranes, which inhibits both sodium influx and membrane depolarization.

Bifenthrin is a synthetic pyrethroid insecticide that prolongs opening of sodium channels resulting in membrane depolarization and conductance block in the insect nervous system. Bifenthrin is effective against A. gambiae and C. quinquefasciatus mosquitos (LD50s = 0.15 and 0.16 ng/mg, respectively) and increases O. insidiosus mortality in treated corn and sorghum plants.

Indoxacarb ((±)-Indoxacarb) is a broad-spectrum oxadiazine insecticide. Indoxacarb is metabolized in vivo to its active N-decarbomethoxyllated metabolite DCJW. Indoxacarb suppresses voltage-gated sodium channel currents in rat dorsal root ganglion neurons.

Cyfluthrin is a type II pyrethroid and has effects on various insects. Cyfluthrin is a modulator of Nav1.8 sodium channels by repetitive stimulation. Cyfluthrin can be applied in agriculture,veterinary, insecticide,pyrethroid and stored product.

β-Pompilidotoxin (β-PMTX), a wasp venom, can slow sodium channel inactivation and increases steady-state sodium current in cells.

β-Pompilidotoxin TFA (β-PMTX TFA), a wasp venom, can slow sodium channel inactivation and increases steady-state sodium current in cells.

Huwentoxin-IV is a potent and selective sodium channel blocker, inhibits neuronal Nav1.7, Nav1.2, Nav1.3 and Nav1.4 with IC50s of 26, 150, 338 and 400 nM, respectively. Huwentoxin-IV preferentially blocks peripheral nerve subtype Nav1.7 by binding neurotoxin receptor site 4. Huwentoxin-IV has analgesic effects on animal models of inflammatory and neuropathic pain.

Huwentoxin-IV TFA is a potent and selective sodium channel blocker, inhibits neuronal Nav1.7, Nav1.2, Nav1.3 and Nav1.4 with IC50s of 26, 150, 338 and 400 nM, respectively. Huwentoxin-IV TFA preferentially blocks peripheral nerve subtype Nav1.7 by binding neurotoxin receptor site 4. Huwentoxin-IV TFA has analgesic effects on animal models of inflammatory and neuropathic pain.

APETx2, a sea anemone peptide from Anthopleura elegantissima, is a selective and reversible ASIC3 inhibitor, with an IC50 of 63 nM. APETx2 directly inhibits the ASIC3 channel by acting at its external side. APETx2 could reverses acid‐induced and inflammatory pain.

APETx2 TFA, a sea anemone peptide from Anthopleura elegantissima, is a selective and reversible ASIC3 inhibitor, with an IC50 of 63 nM. APETx2 directly inhibits the ASIC3 channel by acting at its external side. APETx2 could reverses acid‐induced and inflammatory pain.

TPC2-A1-P is a powerful membrane-permeant Na+-selective two-pore channel 2 (TPC2) agonist. TPC2-A1-P activates a Na+ current and promotes endosome fusion with the plasma membrane. TPC2-A1-P can be used to probe different functions of TPC2 channels in intact cells.

Lu AE98134 is a potent and selective positive modulator of NaV1.1 channels and also activates NaV1.6 channels.Lu AE98134 normalizes the altered firing properties of fast spiking interneurons (FSINs) in Dlx5/6+/- mice and can be used for the research of cognitive restoring in schizophrenia.

BI-9627 hydrochloride is potent sodium-hydrogen exchanger isoform 1 (NHE1) inhibitor, with IC50s of 6 and 31 nM in intracellular pH recovery (pHi) and human platelet swelling assays, respectively. BI-9627 hydrochloride displays >30-fold selectivity against NHE2 and with no measurable inhibitory activity against the NHE3 isoform. BI-9627 hydrochloride shows low DDI (drug-drug interaction) potential, excellent pharmacokinetics in rat and dog, and remarkably potent activity in the isolated heart model of ischemia-reperfusion injury.

Propafenone (SA-79) is an orally active sodium channel blocking agent and a beta-adrenoceptor (β-adrenergic receptor) antagonist. Propafenone offers a broad spectrum of activity in the treatment of cardiac arrhythmias.

Phrixotoxin 3 is a potent blocker of voltage-gated sodium channels, with IC50s of 0.6, 42, 72, 288, 610 nM for NaV1.2, NaV1.3, NaV1.4, NaV1.1 and NaV1.5, respectively. Phrixotoxin 3 modulates voltage-gated sodium channels with properties similar to those of typical gating-modifier toxins, both by causing a depolarizing shift in gating kinetics and by blocking the inward component of the sodium current.

Mambalgin 1 is a selective ASIC1a inhibitor (IC50 values are 192 and 72 nM for human ASIC1a and ASIC1a/1b dimer, respectively). Mambalgin 1 binds to closed/inactive channel. Mambalgin 1 is selective for ASIC1a over ASIC2a, ASIC3, TRPV1, P2X2, 5-HT3, Nav1.8, Cav3.2 and Kv1.2 channels. Mambalgin 1 increases latency of withdrawal response in mouse tail-flick and paw-flick tests.

ProTx II is a selective blocker of Nav1.7 sodium channels with an IC50 of 0.3 nM, and is at least 100-fold selective for Nav1.7 over other sodium channel subtypes. ProTx-II inhibits sodium channels by decreasing channel conductance and shifting activation to more positive potentials and blocks action potential propagation in nociceptors.