Calcium Channel Antagonist

Verapamil ((±)-Verapamil) is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor. Verapamil also inhibits CYP3A4. Verapamil has the potential for high blood pressure, heart arrhythmias and angina research.

Nifedipine (BAY-a-1040) is a potent calcium channel blocker and agent of choice for cardiac insufficiencies.

Verapamil hydrochloride ((±)-Verapamil hydrochloride) is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor. Verapamil hydrochloride also inhibits CYP3A4. Verapamil hydrochloride has the potential for high blood pressure, heart arrhythmias and angina research.

L-Phenylalanine ((S)-2-Amino-3-phenylpropionic acid) is an essential amino acid isolated from Escherichia coli. L-Phenylalanine is a α2δ subunit of voltage-dependent Ca⁺ channels antagonist with a K_i of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (K_B of 573 μM ) and non-NMDARs, respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals.

Fasudil (HA-1077; AT877) Hydrochloride is a nonspecific RhoA/ROCK inhibitor and also has inhibitory effect on protein kinases, with an K_i of 0.33 μM for ROCK1, IC₅₀s of 0.158 μM and 4.58 μM, 12.30 μM, 1.650 μM for ROCK2 and PKA, PKC, PKG, respectively. Fasudil Hydrochloride is also a potent Ca²⁺ channel antagonist and vasodilator.

Amlodipine, an antianginal agent and an orally active dihydropyridine calcium channel blocker, works by blocking the voltage-dependent L-type calcium channels, thereby inhibiting the initial influx of calcium. Amlodipine can be used for the research of high blood pressure and cancer.

L-Phenylalanine-d₅ is the deuterium labeled L-Phenylalanine. L-Phenylalanine ((S)-2-Amino-3-phenylpropionic acid) is an essential amino acid isolated from Escherichia coli. L-Phenylalanine is a α2δ subunit of voltage-dependent Ca+ channels antagonist with a K_i of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (KB of 573 μM ) and non-NMDARs, respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals.

Fasudil (HA-1077; AT877) is a nonspecific RhoA/ROCK inhibitor and also has inhibitory effect on protein kinases, with an K_i of 0.33 μM for ROCK1, IC₅₀s of 0.158 μM and 4.58 μM, 12.30 μM, 1.650 μM for ROCK2 and PKA, PKC, PKG, respectively. Fasudil is also a potent Ca²⁺ channel antagonist and vasodilator.

Diltiazem hydrochloride is a Ca²⁺ influx inhibitor (slow channel blocker or calcium antagonist).

Ziconotide acetate (SNX-111 acetate), a peptide, is a potent and selective block of N-type calcium channels antagonist. Ziconotide acetate reduces synaptic transmission, and can be used for chronic pain research.

Fluspirilene is a non-competitive antagonist of L-type calcium channels with an IC₅₀ of 0.03 μM. Fluspirileneis a long-acting injectable depot antipsychotic agent used for schizophrenia.

L-Phenylalanine-¹³C₆ is the ¹³C-labeled L-Phenylalanine. L-Phenylalanine ((S)-2-Amino-3-phenylpropionic acid) is an essential amino acid isolated from Escherichia coli. L-Phenylalanine is a α2δ subunit of voltage-dependent Ca+ channels antagonist with a K_i of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (KB of 573 μM ) and non-NMDARs, respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals.

Ulixacaltamide (Z944) is an orally available T-type calcium channel antagonist that can slow the progression of epilepsy. Ulixacaltamide effectively reduces tremor in a normal alkaline tremor animal model. Ulixacaltamide reverses thermal hyperalgesia and mediates pain relief.

Bepridil hydrochloride (CERM 1978) is a calcium channel blocker, with antianginal activity.

Amlodipine besylate (Amlodipine benzenesulfonate), an antianginal agent and an orally active dihydropyridine calcium channel blocker, works by blocking the voltage-dependent L-type calcium channels, thereby inhibiting the initial influx of calcium. Amlodipine besylate can be used for the research of high blood pressure and cancer.

TTA-A2 is a potent, selective and orally active t-type voltage gated calcium channel antagonist with reduced pregnane X receptor (PXR) activation. TTA-A2 is equally potent against the Cav3.1 (a₁G) and Cav3.2 (a₁H) channels with IC₅₀ values of 89 nM and 92 nM, respectively, at -80 and -100 mV holding potentials. TTA-A2 can be used for the research of a variety of human neurological diseases, including sleep disorders and epilepsy.

Ginsenoside Ro (Polysciasaponin P3; Chikusetsusaponin 5; Chikusetsusaponin V) exhibits a Ca²⁺-antagonistic antiplatelet effect with an IC₅₀ of 155 μM. Ginsenoside Ro reduces the production of TXA₂ more than it reduces the activities of COX-1 and TXAS.

Tilmicosin (LY-177370) is an orally active calcium channel antagonist and macrolide antibiotic with antimicrobial activity. Tilmicosin mainly acts on the 50S subunit of bacterial ribosomes, inhibiting protein synthesis. Tilmicosin is effective in the treatment of respiratory diseases in livestock such as cattle, sheep and pigs. In addition, Tilmicosin has immunomodulatory and anti-inflammatory effects.

Clevidipine is a selective, short-acting L-type calcium channel antagonist with an IC₅₀ of 7.1 nM. Clevidipine can competitively bind to calcium channels and exert rapid vasoselective vasodilation by blocking the influx of extracellular calcium ions, thereby reducing peripheral vascular resistance and effectively controlling acute severe hypertension. Clevidipine can also protect the myocardium from reperfusion injury by promoting the release of nitric oxide (NO). Clevidipine can be used in the research of acute hypertension, perioperative blood pressure management, and myocardial ischemia-reperfusion injury.

Nilvadipine is a potent calcium channel antagonist, and the IC₅₀ value is around 0.1 nM.