Opioid
August 17, 2023
The generic term applied to alkaloids from the opium poppy (Papaver somniferum), their synthetic analogues, and compounds synthesized in the body, which interact with the same specific receptors in the brain, have the capacity to relieve pain, and produce a sense of well-being (euphoria). The opium alkaloids and their synthetic analogues also cause stupor, coma, and respiratory depression in high doses.