1982年Virag在血管性阳萎的手术过程中,偶然发现阴茎海绵体内注入罂粟硷可引起阴茎勃起;并把这一发现应用于临床,取得了良好的效果。这种治疗方法引起了许多作者的兴趣与重视,把它应用于一些难治性阳萎患者,同时对注射的药物也进行了改进与研究。由于这种方法有效率高,药物作用于阴茎局部,所以有人把这种方法称为化学性假体(Chemical Prostheis)。 In 1982 Virag in vascular impotence surgery, accidentally found papilloid injection of papaverine can cause penile erection; and the discovery of clinical application, and achieved good results. This treatment has aroused the interest of many authors and attention, it is applied to some patients with refractory impotence, while the injection of drugs have also been improved and studied. Because this method is efficient and the drug acts on the penis, some have called it Chemical Prostheis.