It's not that easy to get hold of. It's a prescription drug and an expensive one. So unless you raid someone else's medecine cabinet it may not be easy to find.But like any drug, if soemoen wants it and it isn't legal, soemone else will supply it illegally and up a big markup. There is no guarantee it will work for a drunk guy-it's effectiveness, like many drugs is affected by alcohol intake. Also, it doesn't magically produce an erection. There has to be some sexual stimulation. Links to how it works start here:
http://www.howstuffworks.com/viagra.htm
And finally, you have to remember that viagra was origianally developed as a heart drug. It turned out to be not that effective in the way they hoped, for hearts, but test subjects-may middle aged and at ana ge when it starts to become difficult to get/keep an erection, started to report that erections seemed to be easier and long lasting. What their wives thought about this wasn't metnioned in the article I read!
So, while moderate alcohol use is generally tolerated by viagra, it's never a good idea to mix a drug(in this case one that does affect heart and blood pressure) with alcohol. OR with other drugs. Or to take if you have a known or unknown heart or circulatory/ blood pressure condition. Which brings it right back to needing a prescription. Otherwise, though rare, you might die in bed at a young age-with a smile on your face maybe but your partner would definitely be freaked out! (There are otehr side effects too but I can't remember them and most are rare.)
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A Parent, old geezer, and occasionally right. Good judgment comes from bad
experience, and a lot of that comes from bad judgment.