The present invention discloses the use of nicorandil in treatment of male impotency and female sexual dysfunction. Nitric ester of N-(2-hydroxyethyl) nicotinamide or nicorandil, as it is better known is known as a drug for treatment of circulatory diseases. It is a pyridine derivative. Several clinical tests performed on male patients suffering from impotency including severe penile erectile dysfunction or female patients suffering from female sexual arousal dysfunction consistently showed excellent results. There was not a single instance of any of side effects or other symptoms of toxicity or deaths due to myocardial infarctions as was the case with other drugs including pyrazolopyrimidones compounds.