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Heroin can be used in a variety of ways, depending on user preference and the purity of the drug. Heroin can be injected into a vein (âmainliningâ), injected into a muscle, placed on tinfoil and inhaled as smoke through a straw or snorted as powder via the nose.eroin can be used in a variety of ways, depending on user preference and the purity of the drug. Heroin can be injected into a vein (âmainliningâ), injected into a muscle, placed on tinfoil and inhaled as smoke through a straw or snorted as powder via the nose.
1 Like other opiates, heroin is a sedative drug that slows body functioning. 2  People who use it describe a feeling of warmth, relaxation and detachment, with a lessening sense of anxiety. 3  Due to its analgesic qualities, physical and emotional aches and pains are diminished.