TY - CHAP M1 - Book, Section TI - Narcotic Abuse A1 - Kasper, Dennis L. A1 - Fauci, Anthony S. A1 - Hauser, Stephen L. A1 - Longo, Dan L. A1 - Jameson, J. Larry A1 - Loscalzo, Joseph PY - 2016 T2 - Harrison's Manual of Medicine, 19e AB - Narcotics, or opiates, bind to specific opioid receptors in the CNS and elsewhere in the body. These receptors mediate the opiate effects of analgesia, euphoria, respiratory depression, and constipation. Endogenous opiate peptides (enkephalins and endorphins) are natural ligands for the opioid receptors and play a role in analgesia, memory, learning, reward, mood regulation, and stress tolerance. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/11/09 UR - accessmedicine.mhmedical.com/content.aspx?aid=1128788610 ER -