Vacuum devices can cause bruises if used too often. However, both devices are considered safe. An erection occurs 5 to 10 minutes after the injection and may last as long as 60 minutes. Side effects may include bruising and aching. When impotence doesn't respond to other treatments, a permanent penile implant or prosthesis may help.
Permanent devices are especially successful for chronic impotence caused by diabetes.
A variety of implants and prostheses, all requiring surgical insertion, are available. One device consists of firm rods that are inserted into the penis to create a permanent erection. Surgical techniques to restore blood flow to the penis are still experimental. All rights reserved.