The year 2016 marks the 20th anniversary of the patent for Viagra, a pill which changed the world’s perspective of erectile dysfunction almost overnight and started a multi-billion-dollar subindustry.

Since that time, as our population ages, doctors have been encountering greater numbers of men with increasingly complicated medical problems who wish to maintain aspects of their sexuality.

And as many of these men are finding out, the more complicated one’s medical history, the less effective that oral medications like Viagra can be.

Hear from Dr. Graham VerLee, a urologist specializing in Men’s Health at Maine Medical Partners Urology, as he discusses the causes of ED, the reasons why prescription medications don’t always work in every patient, and the many options available for men beyond Viagra.