1) You do NOT need a prescription for saline, if the pharmacist told you that then you must REALLY have come off as a junky! But hell, you bottled water... I advised saline be used in my FAQ because it *IS* sterile, but a bottle of Zephyrhills will be just as good ...
2) It's not good to make a practice of injecting pharmacutical pills due to the binders/fillers and other stuff thats in them, but all you do is crush the tab, put it in the spoon, add water, and cook until it disolves... filter and bang ..
If you are a narcotics virgin, start with only about half a pill (2mg) - though you may want to have a second rig loaded incase that doesn't do it for ya... use however much fluid you need to disolve it...
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"I am not one of those weak-spirited, sappy Americans who want to be liked by all the people around them. I don't care if people hate my guts; I assume most of them do. The important question is: 'What are they in a position to do about it?'" (William S. Burroughs)