morphinane alkaloid heroin http://id.loc.gov/authorities/subjects/sh85060444 http://purl.bioontology.org/ontology/MESH/D003932 http://purl.bioontology.org/ontology/RXNORM/3304 http://purl.obolibrary.org/obo/CHEBI_27808 http://purl.obolibrary.org/obo/NCIT_C424 https://en.wikipedia.org/wiki/Category:Heroin https://en.wikipedia.org/wiki/Heroin https://homosaurus.org/terms/heroin https://www.wikidata.org/wiki/Q60168 N07BC06 A morphinane alkaloid that is morphine bearing two acetyl substituents on the O-3 and O-6 positions. As with other opioids, heroin is used as both an analgesic and a recreational drug. Frequent and regular administration is associated with tolerance and physical dependence, which may develop into addiction. Its use includes treatment for acute pain, such as in severe physical trauma, myocardial infarction, post-surgical pain, and chronic pain, including end-stage cancer and other terminal illnesses. HV5822.H4 RM666.H35 diacetylmorphine diamorphine