How to Identify Common Drugs? Help Treat Drug Addiction
General Characteristics: heroin most often comes in a white, offwhite, brown and in some cases black powder or tarlike substance, often sold in tightly wrapped plastic bags, clear or brown vials and in paperwrapped bricks when in large quantity.. Methods of Use: heroin can come in many forms, but the most intense (and dangerous) effects are achieved when injected directly into the blood stream.