Source:http://linkedlifedata.com/resource/umls/id/C0282275
NCI: The hydrochloride salt form of oxymorphone, a semisynthetic opioid with a potent analgesic property. Oxymorphone hydrochloride binds to and activates opiate receptors, specifically mu-receptors, in the central nervous system (CNS). This results in sedation, analgesia, decreased gastrointestinal motility, and respiratory depression.