what is heroin used for
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 (âmainliningâ), 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 (âmainliningâ), injected into a muscle, placed on tinfoil and inhaled as smoke through a straw or snorted as powder via the nose.