30 products were found matching "K04853"!

Verapamil is the prototypical blocker of L-type calcium channels that produces excitation-contraction uncoupling in cardiac muscle by preventing the slow-inward current of calcium ions. Verapamil can also block calcium fluxes in vascular smooth muscle. It has both peripheral and coronary vasodilator effects (IC50 =...

Amlodipine is a dihydropyridine L-type calcium channel blocker that selectively inhibits calcium influx in cardiac and vascular smooth muscle. Acting as a vasodilator, amlodipine reduces blood pressure by relaxing the smooth muscle in the arterial wall, decreasing total peripheral resistance. It inhibits...

Isradipine is a selective L-type calcium channel blocker with long-acting antihypertensive activity. It demonstrates an EC50 value of 1.4 nM for relaxation of depolarization-induced contractions of rabbit aorta and an EC25 value of 0.45 nM for reduction in rate of spontaneously beating guinea pig right atria. By...

Felodipine is an inhibitor of L-type calcium channels. It induces relaxation of precontracted isolated porcine coronary artery segments (EC50 = 0.15 nM), which highly express L-type calcium channels. Felodipine is selective for L-type calcium channels over N-, R-, and P/Q-type channels at 10 µM, as well as the...

White powder. Soluble in methanol (50 mg/ml), ethanol or water. Verapamil hydrochloride is an alpha-adrenergic receptor (alpha-AR) antagonist and calcium channel protein inhibitor that blocks the L-type Ca2+ channels in smooth and cardiac muscle cells. Verapamil is an antiarrhythmic agent and vasodilator known to...

(±)-Verapamil-d3 (hydrochloride) (Cay-18452) is intended for use as an internal standard for the quantification of verapamil (Cay-14288) by GC- or LC-MS. Verapamil is the prototypical blocker of L-type calcium channels that produces excitation-contraction uncoupling in cardiac muscle by preventing the slow-inward...

Nilvadipine is a dihydropyridine L-type calcium channel blocker. It is selective for L-type over N-, P/Q-, and R-type calcium channels at 10 µM. Nilvadipine (10 mg/kg per day, p.o.) inhibits increases in systolic blood pressure induced by chronic intravenous infusion of the peptide vasoconstrictor endothelin in...

Nitrendipine is a dihydropyridine used as an antihypertensive agent due to its ability to block L-type and T-type calcium channels, which play key roles in excitation-contraction coupling in cardiac and vascular smooth muscle cells, producing vasodilatory actions. It also binds to adenosine A1, A2A, and A3 receptors...

BAY-K-8644, originally described as a modulator of potential operated calcium channels, exists as two enantiomers that have opposite actions. (R)-(+)-BAY-K-8644 is an L-type channel blocker that has negative inotropic and vasodilatory effects at 1 µM. Intracerebroventricular administration of this enantiomer has no...

Nicardipine is a dihydropyridine L-type calcium channel antagonist that displays antihypertensive and antianginal activity. It is reported to inhibit adenosine A1, A2A, and A3 receptors with Ki values of 19.6, 63.8, and 3.25 µM, respectively, and can inhibit cytochrome P450 3A4 catalytic activity with an IC50 value...

Bepridil is a dihydropyridine that has anti-anginal and anti-arrhythmic actions by blocking calcium channels in heart and smooth muscle. It is recognized as a non-selective channel blocker, altering myocardial Ca2+, Na+, and K+ currents. For example, it blocks voltage-gated Ca2+ (Cav3.2) and K+ (hERG and KCNQ4)...

A calcium channel antagonist.