Analgesic Flashcards
(52 cards)
Non opioid analgesic
Paracetamol and metamizol
Opioid receptor agonists
Morphine,codeine, Fentanyl, Tramadol, Buprenorphine
Coanalgesic are
Antiepileptic, antidepressants and central alpha adrenoreceptor agonist
Serotonin receptor agonist analgesic
Sumatriptan
Opioid receptor antagonist
Naloxone
NSAIDS
Diclofenac and ibuprofen
CGRP receptor antagonist analgesic
Erenumab
CGRP antagonist
Galcanezumab
Nociceptive pain
Damage to tissues other than nerves
Neuropathic pain cause
by damage of somatosensory nerve system or disease
Neuropathic pain characteristic
Excessive sensitization of neurons and formation of ectopic signals foci
Ectopic signal foci is caused by
Over expression of sodium channels
In nociceptive system they finally connect to
Spinothalamic and spinomedullary tract neurons
Anti nociceptive regulation is
Downward modulation
Stimulation of peraqueductive efferent tract leads to release of
Serotonin,NE and Encephalins,which block afferent pain impulse by substance p and glutamate
Three types of opioid receptor are
Mu,delta and kappa
MOA of opioid
Presynaptic calcium channel blockage and post synaptic potassium channel opening (hyperpolarization
Spinal analgesia reduce
afferent fiber signal transduction
Morphine acts on
Mu ,delta and kappa receptor and has analgesic and sedative effect
Morphine use
Traumatic pain, postoperative pain, tumor induced pain
Codeine
Weak mu receptor agonist, analgesic and sedative effect
Codeine use
Moderate intensity pain
Fentanyl
Mu and delta receptor agonists, partial kappa agonist, analgesic effect stronger than morphine and sedative effect (lipophilic,short acting)
Fentanyl ise
Tumor pain