hcnchannel

RO-275 is a selective HCN1 inhibitor with oral activity, also inhibiting HCN2, HCN3, and HCN4. It improves working memory and is used in research on cognitive disorders.

Alinidine is an HCN channel blocker with antiarrhythmic effects and can be used for the study of angina pectoris.

Ivabradine hydrochloride (S 16257-2) is a new If inhibitor (IC50: 2.9 μM). Ivabradine Hydrochloride is the hydrochloride salt form of ivabradine, an orally bioavailable, hyperpolarization-activated, cyclic nucleotide-gated (HCN) channel blocker, with negative chronotropic activity. Upon administration, ivabradine selectively binds to the intracellular portion of the HCN channel pore and blocks HCN channels in the pacemaker cells within the sinoatrial (SA) node. This inhibits the If (funny) pacemaker ion current, prevents the inward flow and intracellular accumulation of positively charged ions, reduces pacemaker activity and slows diastolic depolarization.

ZD7288 (ICI D7288), a selective hyperpolarization-activated cyclic nucleotide-gated channel blocker, inhibits hippocampal synaptic plasticity.

Cilobradine hydrochloride (DK-AH 269) is an HCN Channel blocker and an open channel blocker of neuronal Ih and related cardiac If channels.

Zatebradine hydrochloride (UL-FS-49CL) is a highly effective and effective HCN Channel inhibitor (IC50:1.96 µM). HCN Channel is an effective hyperpolarization activated loop nucleotide gated channel. Zatebradine hydrochloride blocks slow inward currents through human HCN1, HCN2, HCN3, and HCN4 channels with IC50 values of 1.83 µM, 2.21 µM, 1.90 µM, and 1.88 µM, respectively.