I am 72 years old and have had a radical prostectemy (spelling?) and 39 radiation treatments about six years ago. I had an artificial sphincter put in last year to correct my incontinence. That is great , however I am still impotent. I am considering a penile implant, but I would like to know if there are any satisfactory nonsurgical solutions to this problem. I have tried Levitra and it did not wok well. I would appreciate any suggestions. Thank you.