Prolonged erection is a rare problem in urology but it must be treated effectively. The most common etiological factor is intracavernosal vasoactive agent injection for diagnosis or treatment of ...

Following sexual arousal and release of nitric oxide to the erectile tissue, three events must take place to ensure an erection: trabecular smooth muscle relaxation, arterial dilation and venous ...

Various adrenergic agonists have been used in the treatment of priapism, including pure α-agonists (e.g., metaraminol), mixed α- and β-agonists (e.g., etilefrine, phenylephrine, and epinephrine), and ...