The earliest record known of erectile dysfunction can be traced back to Muslims in the middle ages Islamic world. 처방전 필요없는 비아그라 People treatments have remained in usage for some time but it was only in the 1920s as well as 1930s that a clinical cure was advocated for erectile dysfunction. This was initiated by Dr. John R. Brinkley through his radio programs which were aired in Kansas those days. In the 1970s, making use of penile implants made its method the medical field as doctors started suggesting its usage. The breakthrough in impotence medication included phentolamine as demonstrated by the British psychotherapist Giles Brindley.