I’d like to bolster the points made by Steve Write, earlier:
It is not Christianity that regards “drugs” – whatever individual christians may feel about it. The type of anti drug/alchohol sentiments you see now are more the result of Reformation ideas, developed maybe five hundred years ago. That’s the Puritans, though, not all of Christianity…
Sure, there have always been ascetics in Christian tradition. But you will find that for most of Christian history, anyone who taught abstention from drugs would also have taught abstention from meat, dairy products, wealth, etc. But we are not all called to live as monks.
I seem to recall an individual from Byzantium who was sent for some errand to “the West” (the jurisdiction of the Roman patriarchate). He came back complaining that they seemd to him very somber and lacking of joy. He mentioned that they did not drink wine or take opium as if it were abnormal. So I do not find it surprising that Western Christianity in general has a prohibitive attitude WRT mind altering substances. But even w/in the Western sphere, the Protestants are more prohibitive than the traditional Church, and the Fundamentalists most of all.
The fact remains, though, that addicted individuals can cause quite a problem to society in general, and most cultures end up prohibiting one thing or another. Some of these prohibitions have made their way into various religious views. Just remember, the Bible has many more parts where it encourages drinking of wine than it does speaking against it. It is, furthermore, totally silent on the matter of all other controlled substances. This silence should not be taken to mean that such substances were not in use, but rather that they were never an issue.
My Bishop told me of a recently converted individual who remarked that he was glad that he was Orthodox now, because he enjoyed smoking and drinking. Bishop told him never to identify the Church with those things just because he was permitted to engage in them responsibly. The point is that to the Church Fathers, responsible use of things like tobacco or alcohol was never an issue. However, addictive or otherwise irresponsible behavior of any kind was always looked down upon.
To me, this view is much more mature, since it requires thought and responsibility, rather than black and white statements of do’s and do-not’s.
Well, those are my two cents. Don’t spend 'em all in one place…