TY - CHAP M1 - Book, Section TI - Narcotics (Opiates) A1 - Stringer, Janet L. Y1 - 2017 N1 - T2 - Basic Concepts in Pharmacology: What You Need to Know for Each Drug Class, 5e AB - The word narcotics (or opiates) refers to drugs that act on specific receptors in the central nervous system (CNS) to reduce perception of pain. In general, they do not eliminate pain, but the patient is not as bothered by the pain. They act on three major classes of receptors in the CNS, called opioid receptors and designated mu (μ), kappa (κ), and delta (δ). Most of the actions of the narcotic analgesics are mediated by the μ receptor. Some actions are mediated through the κ and δ receptors. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1142821301 ER -