Tedisamil (KC-8857) dihydrochloride is an antiarrhythmic compound with important biological activities. Tedisamil dihydrochloride exhibits a significant slowing effect on heart rate, which is achieved by inhibiting the transient outward potassium current (I(to)) in the atrium. Tedisamil dihydrochloride inhibits multiple potassium currents, including IK, K(ATP), and PKA-activated chloride channels, thereby prolonging the cardiac action potential and QT interval, and increasing cardiac reentry. Tedisamil dihydrochloride has antiarrhythmic effects on ventricular arrhythmias and atrial flutter in animal models.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.