anesthetic/analgesic opioid analgesic 2024-04-01T13:31:08Z This is any condition in which the main influencing factor is an opioid analgesic. Opioids (synthetic or semisynthetic) and opiates (related natural alkaloids) make up this class of medication used in the management and treatment of pain. XCO:0001329 experimental_condition_ontology narcotic analgesic slaulederkind