bradycardia

Atropine (DL-Hyoscyamine) 是竞争性的毒蕈碱乙酰胆碱受体拮抗剂，有抗近视效果。它是一种从颠茄植物中分离出来的天然生物碱，可阻断乙酰胆碱对心率和收缩力的抑制作用。

Lerisetron 是5-HT3拮抗剂，与 5-HT3受体具有高亲和力(pKi:9.2)。它对尿烷麻醉大鼠的 5-HT 引发的反射性心率过缓具有抑制作用。

Atropine sulfate (Sulfatropinol) 是一种竞争性的毒蕈碱乙酰胆碱受体拮抗剂。

YM-46303 是一种具有选择性和有效性的毒蕈碱受体拮抗剂，对 M3 受体表现出较高的亲和力。YM-46303 可用于研究髓状大鼠心动过缓。

mTOR HDAC-IN-1 (Compound 50) 是一个具有选择性的mTOR 和HDAC 双重抑制剂，对mTOR 和HDAC1的IC50分别为0.49和0.91 nM。 mTOR HDAC-IN-1 可作为抗癌活性分子 （anti-cancer） 进行研究。该化合物的粉末形式不稳定，建议选择其他盐形式产品。

Bencycloquidium Bromide is a muscarinic M3 antagonist. Bencycloquidium bromide inhibits nasal hypersecretion in a rat model of allergic rhinitis. Bencycloquidium Bromide showed high affinity toward the M(3) receptor in Chinese hamster ovary (CHO) cells (M(1) pKi=7.86, M(2) pKi=7.21, M(3) pKi=8.21); pA(2)=8.85, 8.71 and 8.57 in methacholine-induced contraction of trachea, ileum and urinary bladder, 8.19 in methacholine-induced bradycardia of right atrium in vitro, respectively.This compound is unstable in powder form and other related salt forms are recommened.

Cyclobuxine D is a steroidal alkaloid extracted from Buxus microphylla. Cyclostatin D has obvious bradycardia effect on rat heart, and inhibits acetylcholine and Ba ++ induced longitudinal muscle contraction isolated from rabbit jejunum.

Isoprenaline(Norisodrine) 是一种非选择性且具有口服活性的 β-肾上腺素受体激动剂。Isoproterenol 是有效的外周血管扩张剂和支气管扩张剂。Isoproterenol 可用于研究心动过缓和支气管哮喘，用于治疗心脏传导阻滞、心动过缓。

Indisetron Dihydrochloride is a 5-HT(3) and 5-HT(4) receptor antagonist. Indisetron reduces 2-methyl-5-serotonin (HT)-induced bradycardia.

Lycorenine may produce a decrease in blood pressure as the result of alpha-adrenergic blockade in conjunction with the reduction of the spontaneous sympathetic nerve activity, and produce bradycardia by modifying vagal activity. The development of tachyph

CVT-2759 is A potential partial agonist for A(1)-ADORs, and it may be useful to slow atrioventricular node conduction to reduce ventricular rate without causing the atrioventricular block, bradycardia, atrial arrhythmias, or vasodilation.

Dalapon is a selective herbicide used to control perennial grasses. The major use of dalapon is on food crops including sugarcane and sugar beets. Its use is no longer authorized in France. The National Institute for Occupational Safety and Health in the

Methoctramine is a selective antagonist of M2 muscarinic acetylcholine receptors (IC50 = 6.1 nM in CHO-K1 cell membranes).[1] It is selective for M2 over M1, M3, M4, and M5 receptors (IC50s = 92, 770, 260, and 217 nM, respectively). In vitro, methoctramine inhibits acetylcholine-induced reductions in isolated guinea pig tracheal tube contractions when used at a concentration of 1 μM.[2] In vivo, methoctramine inhibits bradycardia and bronchoconstriction induced by acetylcholinein guinea pigs with ED50 values of 38 and 81 nmol kg, respectively. In a rat model of spinal cord injury, methoctramine suppresses bladder overactivity induced by the non-selective muscarinic acetylcholine receptor agonist oxotremorine M.[3]

Methoctramine tetrahydrochloride is a potent and cardioselective antagonist of the M2 muscarinic receptor, capable of inhibiting Muscarine-induced bradycardia in vivo.

MDL-72567 is a dihydropyridine calcium antagonist that causes vasodilation and direct sinus bradycardia.

VCP-746 is a potent adenosine A2B receptor agonist that stimulates anti-fibrotic signalling. VCP746 reduces hypertrophy in a rat neonatal cardiac myocyte model. VCP746 is a hybrid molecule consisting of an adenosine moiety linked to an adenosine A1 receptor (A1AR) allosteric modulator moiety. At the A1AR, VCP746 mediated cardioprotection in the absence of haemodynamic side effects such as bradycardia.

Indisetron is a 5-HT(3) and 5-HT(4) receptor antagonist. Indisetron reduces 2-methyl-5-serotonin (HT)-induced bradycardia.

Melperone 是一种丁酰苯，是一种具有睡眠诱导作用的抗精神病试剂，常用于研究精神类疾病。

(-)-Isoproterenol hydrochloride作为β-adrenergic受体激动剂，在治疗心动过缓和作为支气管扩张剂方面应用。

Amiselimod (MT-1303) 是一种调节鞘氨醇 1-磷酸受体 (S1P Receptor) 的化合物。经鞘氨醇激酶 (sphingosine kinases) 作用后，Amiselimod 转化为其活性代谢物 (S)-amiselimod phosphate，专门靶向 S1P1 受体，从而改善自身免疫性疾病，同时避免心动过缓的发生。

HS024 是一种选择性的MC4受体拮抗剂，可增加食物摄入，对 MC4、MC5、MC3 和 MC1 的Ki 分别为 0.29、3.29、5.45 和 18.6 nM。