|Index name:||Varenicline dihydrochloride|
Vanoxerine 2 Hcl(GBR12909) is a potent and selective DRI (Dopamine reuptake inhibitor). IC50 value: Target: Dopamine reuptake inhibitor At a cellular level, vanoxerine acts to block cardiac ion channels. Vanoxerine is a multichannel blocker, acting on IKr (potassium), L-type calcium and sodium ion channels. By blocking these specific channels, there is a prolongation of the action potential of the cell, preventing reactivation by a reentrant circuit. The block is strongly frequency dependant: as the pacing of the heart increases so does the frequency of ion channel blocking by vanoxerine. Vanoxerine is a potentially effective treatment for cardiac arrhythmias. A significant cause of cardiac arrhythmias is reentry, an electrophysiologic event in which the proliferating signal that refuses to terminate, and endures to reexcite the heart after the refractory period.