Efficacy and safety of nicorandil in patients with stable angina pectoris It includes the results of the study of efficiency and safety of nicorandil in 30 patients with stable angina pectoris. Nicorandil is the NO-donator and K+-channels modulator. It can be prescribed to the patients when the effect of combined antianginal therapy is not sufficient. Th results showed antianginal and anti-ischemic effect of nicorandil treatment.