Dude, if you're using refined opium (or even raw for that matter) you need to be hella careful with the dosing if you are taking it internaly. It's really easy to take too much that way, and when you realize it it's kinda too late. Besides, if you have opium why wouldn't you smoke it? IMO it's much more enjoyable that way. If you just put the O on the screen (in matchhead size doses and maybe a doublle screen if your O isn't thoroughly dry) it's pretty easy to vaporize. I use large matches to do this instead of a lighter, less burned fingers and greater control. Just don't let the flame actually touch the O, light the match and draw from the pipe slowly and steadily, just enough to pull the flame down a little and enjoy. When the O stops giving off vapor, reload and do it again. You'll probably use a couple of matches per dose with this method. If you're going to make laudanum, there are a bunch of recipes the easiest of which is to dissolve the opium in just enough high proof alcohol to make it measurable. There are also some variations like acetum opii, which is a vinegar (partially acetylated quasi-heroin?) version.