Heroin is an opiate that comes from the poppy plant but is a synthetic substance.
Once prescribed as a painkiller and legally available, heroin was prohibited at the start of the twentieth century due to its extremely addictive nature. Heroin remains a Schedule I controlled narcotic, according to the DEA (U.S. Drug Enforcement Administration). Schedule I drugs have no accepted medical use and a high potential for abuse and addiction. The effects triggered by heroin abuse can be damaging both physically and psychologically, particularly when addiction develops. Addiction to heroin is clinically classified as OUD (opioid use disorder). Like all addictions, OUD is a chronic brain condition characterized by relapse and the compulsive use of addictive substances regardless of negative outcomes.