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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.
Heroin Facts. Heroin is processed from morphine, a naturally occurring opiate extracted from the seedpod of certain varieties of poppy plants. The opium poppy has been cultivated for more than five thousand years for a variety of medicinal uses. Heroin was first synthesized from morphine in 1874. Mexican black tar heroin, however, is usually injected (once dissolved) or smoked because of its consistency. 2  Like other opiates, heroin is a sedative drug that slows body functioning. 3  People who use it describe a feeling of warmth, relaxation and detachment, with a lessening sense of anxiety.