Opioid Analgesic & Receptors (Part- 01) Mechanism of action | Opioid Drugs classes and MNEMONICS

Opioids, sometimes called narcotics, are a group of drugs that act on the central nervous system to produce morphine-like effects such as pain relief and euphoria. This pharmacology lecture covers topics such as nociceptive pain pathway, role of glutamate, substance P, and calcitonin gene–related peptide (CGRP) in pain processing, endogenous opioids (enkephalins, endorphins, dynorphins), NMDA, AMPA, NK-1, CGRP receptors, opioid receptors (mu, delta, kappa) mechanism of action and side effects of narcotic drugs, development of opioid tolerance and addiction, partial mu-receptor opioid agonist and antagonist. Drugs mentioned include; Morphine, Fentanyl, Hydrocodone, Hydromorphone, Methadone, Meperidine, Oxycodone, Oxymorphone, Buprenorphine, and Naloxone.