Heroin is an addictive drug, and its use is a serious problem in America.
Heroin is processed from morphine, a naturally occurring substance extracted from the seedpod of the Asian poppy plant. Heroin usually appears as a white or brown powder. Street names for heroin include “smack,” “H,” “skag” and “junk.” Other names may refer to types of heroin produced in a specific geographical area, such as “Mexican black tar.”
Information provided by the National Institutes of Health.