GYKI-23107 is an antiarrhythmic agent with local anaesthetic activity. GYKI-23107 was effective against chemically (aconitine and ouabain) induced arrhythmias after both parenteral and oral administration. GYKI-23107 and mexiletine produced similar elevation of the fibrillation threshold in anaesthetized cats. After oral pretreatment, GYKI-23107 showed protective effects against coronary ligation-induced arrhythmia in conscious rats. The circulatory side-effects of GYKI-23107 in anaesthetized and conscious dogs and cats were milder then those of mexiletine.

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.