Shooting Drugs?!

Question: I noticed when people shoot-up (with a needle) they draw the blood out first, and then push it back in with the drug. Why do they do that? Why is it necessary to draw blood first?

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Answers: I noticed when people shoot-up (with a needle) they draw the blood out first, and then push it back in with the drug. Why do they do that? Why is it necessary to draw blood first?

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To make sure they are injecting directly into a vein. If you have missed the vein, drawing the plunger back won't draw blood into the syringe. An intra-muscular injection won't get them high and can cause allergic reactions. Just thinking about it gives me the heebie-jeebies.

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I believe it makes them get high faster and to make sure everything works right

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