Cancel That Prescription
I may even be willing to go blind at some point in life, if there's some sex in it, but until they come up with a reliable, simple antidote that will relieve the other famous and unfortunate potential side-effect of fashionable drugs like Viagra, you can count me out:

Drug companies already warn consumers that Viagra and competitors like Levitra and Cialis have several other side effects, like blurred vision, headaches, indigestion, and painful erections that last four hours or more. What do you do with an erection that won't quit? Call your doctor—and be very, very afraid.

Slate's explainer details the list of medical options, that start at the level of harrowing and--since those usually don't work--get gradually worse.

I'm thinking more people would stay away, if the ads said directly: "you may go blind, and blood may have to be surgically drained from your penis to avoid lifelong pain and scarring."