吡那地爾一水合物產品是Pinacidil is a cyanoguanidine compound that acts as a potassium channel opener, activating the ATP-modulated potassium channels of guinea pig bladder and heart with Ki?values of 104 and 251 nM, respectively. Induces relaxation of serotonin-produced contractions in porcine and human arterial rings. Vasodilator. Antihypertensive agent.