I was told by an ED doctor once that his homosexual patients (who tend to be more 'experimental') sometimes grind up their Viagra and inhale it. He told me that it's effective, and the action is pretty quick.
Lol. Try to explain that when your boss walks into the bathroom.
Interesting story - I'm glad they weren't smoking it! - but, again though, you can take pomegranate juice also as it effects the same liver enzymes that affect the drug. But, if you are increasing plasma levels by 20% or 40% or whatever it is, then you increase the risk of sides and that can include NAION, temporary/permanent loss of vision, tinnititus, loss of hearing.