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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.
Trends in Heroin Use: Age. Description: Describes recent trends in heroin use by age. In 2005, the average age for first-time use of heroin was 22 years old among individuals ages 12 to 49. The number of first-time heroin users and the age at which they initiate heroin use has remained stable since 2002 (SAMHSA, 2006).The manner in which females and males initiate heroin use tends to differ.he number of first-time heroin users and the age at which they initiate heroin use has remained stable since 2002 (SAMHSA, 2006). The manner in which females and males initiate heroin use tends to differ.