Calcium Channel Inhibitor

(R)-(+)-Bay-K-8644 is a calcium channel inhibitor. (R)-(+)-Bay-K-8644 inhibits Ba²⁺ currents (I_Ba) (IC₅₀=975 nM).

Lercanidipine is a third-generation, lipophilic, brain-penetrant, vascular-selective and orally active dihydropyridine-calcium channel blocker with a pIC₅₀ of 7.74 (converts from μM). Lercanidipine has long lasting antihypertensive action as well as reno- and neuro-protective effect. Lercanidipine also shows anti-oxidant, anti-inflammatory and anti-apoptotic properties. Lercanidipine can be used in cardiovascular and neurological research.

Norfluoxetine hydrochloride is the active metabolite of the antidepressant Fluoxetine (HY-B0102); it is also a TREK-2 K₂P potassium channel inhibitor. Norfluoxetine hydrochloride exhibits neuroimmunological activity, induces apoptosis in primary microglial cells, and inhibits the release of pro-inflammatory factors. Norfluoxetine hydrochloride inhibits high-threshold voltage-gated Ca²⁺ currents in neurons with an EC₅₀ of 20.4 μM. Norfluoxetine hydrochloride can be used in research related to depression, ischemic stroke, and epilepsy.

Azumolene (EU4093 free base), a Dantrolene analog, is a muscle relaxant. Azumolene is a ryanodine receptor (RyR) modulator and inhibits the calcium-release through ryanodine receptor. Azumolene can be used for malignant hyperthermia research.

Econazole ((±)-Econazol) is an orally active imidazole antifungal agent, as well as a cytochrome P-450 inhibitor and a blocker of calcium and manganese ion uptake. Econazole is active against a variety of fungi and some Gram-positive bacteria, but has no significant activity against Gram-negative bacteria. Econazole can inhibit the synthesis of prostaglandins and can also induce liver damage.

ML218 is a potent, selective and orally active T-type Ca²⁺ channels (Cav3.1, Cav3.2, Cav3.3) inhibitor with IC₅₀s of 310 nM and 270 nM for Cav3.2 and Cav3.3, respectively. ML218 inhibits the burst activity in subthalamic nucleus (STN) neurons. ML218 has no significant inhibition of L- or N-type calcium channels, K_ATP or hERG potassium channels. ML218 can penetrate the blood-brain barrier.

Cinnarizine is an orally active, effective and selective inhibitor of L-type calcium channel Cav1.3 with an IC₅₀ of 1.5 μM (in vestibular hair cells). Cinnarizine can cross the blood-brain barrier and regulate calcium homeostasis and dopamine neurotransmission. Cinnarizine inhibits the influx of calcium ions into smooth muscle cells by blocking L-type calcium channels, thereby relaxing vascular smooth muscle, improving cerebral circulation and reducing blood viscosity, while antagonizing dopamine receptors. Cinnarizine can be used in the study of vestibular vertigo, Meniere's disease and cerebrovascular diseases.

5,6-Epoxyeicosatrienoic acid (5,6-EET; (±)5,6-EpETrE) is a fully racemic version of the enantiomeric forms biosynthesized from arachidonic acid by cytochrome P450 enzymes. In solution, 5,6-Epoxyeicosatrienoic acid degrades into 5,6-DiHET and 5,6-δ-lactone, which can be converted to 5,6-DiHET and quantified by GC-MS. In neuroendocrine cells, such as the anterior pituitary and pancreatic islets, 5,6-Epoxyeicosatrienoic acid has been implicated in the mobilization of calcium and hormone secretion. 5,6-Epoxyeicosatrienoic acid is an inhibitor of T-type voltage-gated calcium channels (Cav3) that inhibits isoforms Cav3.1, Cav3.2 (IC₅₀=0.54 μM), and Cav3. and decreases nifedipine-resistant phenylephrine-induced vasoconstriction in isolated mouse mesenteric arteries via Cav3.2 blockade when used at a concentration of 3 μM. In addition, it is a substrate of COX-1 and COX-2.

Mirogabalin (DS-5565) is a novel, preferentially selective α2δ-1 ligand characterized by high potency and selectivity to the α2δ-1 subunit of voltage-sensitive calcium channel complexes in the CNS.

Cav 2.2 blocker 1 is an orally active N-type calcium channel (Cav 2.2) blocker. Cav 2.2 blocker 1 can be used for research on neuropathic pain.

Lercanidipine is a third-generation, lipophilic, brain-penetrant, vascular-selective and orally active dihydropyridine-calcium channel blocker with a pIC₅₀ of 7.74 (converts from μM). Lercanidipine has long lasting antihypertensive action as well as reno- and neuro-protective effect. Lercanidipine also shows anti-oxidant, anti-inflammatory and anti-apoptotic properties. Lercanidipine can be used in cardiovascular and neurological research.

JTV-519 hemifumarate (K201 hemifumarate) is a Ca²⁺-dependent blocker of sarcoplasmic reticulum Ca²⁺-stimulated ATPase (SERCA) and a partial agonist of ryanodine receptors in striated muscle. Antiarrhythmic and cardioprotective properties.

L-Ascorbic acid (L-Ascorbate) (GMP) is Ascorbic acid (HY-B0166) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. L-Ascorbic acid is an inhibitor of Ca_v 3.2 channels.

Xanthone is a monoamine oxidase A (MAO-A) inhibitor with an IC₅₀ of 0.84 µM. Xanthon inhibits Norepinephrine (HY-13715) and high-K⁺-induced vasoconstriction with IC₅₀ values of 60.26 μM and 82.9 μM, respectively. Xanthon increases intracellular cyclic adenosine 3′,5′-monophosphate (cAMP) content and blocks Ca²⁺ channels. Xanthone is the scaffold of several pharmacologically active compounds.

Almorexant (ACT 078573) hydrochloride is an orally active, potent and competitive dual orexin receptor antagonist, with K_d values of 1.3 nM (OX1) and 0.17 nM (OX2), respectively. Almorexant hydrochloride reversibly blocks signaling of orexin-A and orexin-B peptides. Almorexant hydrochloride totally blocked the intracellular Ca²⁺ signal pathway. Almorexant hydrochloride stimulates caspase-3 activity in AsPC-1 cells and induces apoptosis.

Suvecaltamide (MK-8998) is a selective T-type calcium channel inhibitor with oral efficacy. Suvecaltamide exhibits no cytotoxicity in myeloma cell lines and does not affect the antitumor efficacy of Bortezomib (BTZ). Suvecaltamide reverses BTZ-induced peripheral neuropathy (CIPN) in mouse and rat models, and helps inhibit myeloma growth.

Carboxyamidotriazole (L-651582) is an orally active cytostatic inhibitor of nonvoltage-operated calcium channels and calcium channel-mediated signaling pathways. Carboxyamidotriazole inhibits NF-κB, MAPK activation and NO production. Carboxyamidotriazole has anti-angiogenic and anti-inflammatory activities. Carboxyamidotriazole has anticancer activity against liver cancer, lung cancer and leukemia.

(S)-Verapamil hydrochloride (S(-)-Verapamil hydrochloride) inhibits leukotriene C4 (LTC4) and calcein transport by MRP1. (S)-Verapamil hydrochloride leads to the death of potentially resistant tumor cells.

Manidipine is an orally active calcium channel antagonist. Manidipine regulates the expression of cytokines (IL-1β, IL-6). Manidipine has a hypotensive effect. Manidipine can be used in the study of cardiovascular diseases (such as hypertension, myocardial ischemia-reperfusion injury, ventricular hypertrophy), kidney diseases (such as glomerular diseases), and epilepsy.

Tetracaine hydrochloride (Amethocaine hydrochloride) is a calcium channel protein inhibitor and blocks voltage-sensitive release of Ca²⁺ from sarcoplasmic reticulum. Tetracaine hydrochloride is mainly used topically in ophthalmology and as an antipruritic.