long qt syndrome

Ibutilide Fumarate (U70226E) 是一种 III 类抗心律失常药物，可作用于急性心梗阻塞。

KCNQ1 activator-1 是有效的 KCNQ1通道激活剂。它在研究长 QT 综合征中有研究的价值。

PD-118057 是一种有效的乙醚相关(hERG)钾通道激活剂，对 hERG 不显示活性。PD-118057 通过激活 hERG 通道来抑制膜的兴奋性变化。PD-118057预防和逆转 QT 间期延长，是治疗遗传性或获得性长 QT 综合征和充血性心力衰竭的延迟复极的潜在化合物。

Eleclazine, also known as GS-6615, is a selective late sodium current inhibitor. Eleclazine is potentially useful for treatment of coronary vasodilators, antiarrhythmics and vasodilators. Eleclazin showed a shortening of the QTc interval (the time interval between the start of the Q-wave and end of the T-wave in the heart’s electrical cycle) in patients with long QT-3 (LQT3) syndrome. LQT3 is a genetic disorder that prolongs the heart’s QTc interval and can cause life-threatening cardiac arrhythmias (abnormal heartbeats).