Analgesics Flashcards
hyper-algesia means
enchanced pain
algesia means
pain
anal-gesia means
loss of pain sensation
difference in anaethetic & analgesic
anaethetic- loss of sensation
analgesic- loss of pain sensation
classify analgesic
narcotic(opioid analgesics)
non-narcotic(NSAIDs)
narcotic analgesics are also known as _________
opioid analgesics
define narcotic analgesic
cause analgesia accompanied by narcosis(deep sleep)
non-narcotic analgesics are also known as _______
NSAIDs
define non-narcotic analgesics
cause analgesia without narcosis
narcotic analgesics can further be subdivided into
opium alkaloids
morphine derivatives
morphine subsitutes
____________ analgesics produce anti-inflamatory and anti-pyretic effect
non-narcotic
_________ analgesic is used for superficial pain
non-narcotic
_________ analgesic is used for deep seated pain
narcotic
an ideal analgesic should have _________(short/long) duration
long
opium is a ________ derieved from _________
dried exudate
unripe seed capsules of poppy plant(papaver somniferum)
opium contains _______ alkaloids
32
opium alkaloids can be divided into ___ groups
2
name the 2 groups into which opium can be divided
phen-anthrene group
benzyl-iso-quinoline group
name 3 morphine alkaloids under PHEN-ANTHRENE group
the-baine
morphine
codeine
name 3 morphine alkaloids under benzyl-iso-quinoline group(PN2)
papa-verine
nos-capine
nar-ceine
difference between phen-anthrene group & benzyl-iso-quinolene group
CNS: moe depression or excitation
more analgesia
spasmogenic
addiction common
except ________ ,all akaloids of phen-anthrene group produce significant analgesia
thebaine
_____________ group of opium alkaloids are spasmolytic
benzyl-iso-quino-lene
_____________ is the principal akaloid of opium
morphine
name the first plant alkaloid isolated?
morphine
opioid prototype
morphine
morphine produces _____phoria
eu-phoria
morphine produces CNS depression in which species?
man
monkey
dog
morphine produces CNS excitation in which species?
cat
ruminants
horse
morphine blocks _____________ transmission
no-cieption
does morphine impair motor activity while performing its action?
NO
name a MIXED AGONIST-ANTAGONIST of opium alkaloids
pentazocine
pentazocine is an agonist for _____ receptor and antagonist for _____ receptor
k
u
what is penta-zocine
mixed agonist antagonist for opium alkaloids
name some chemical mediators of pain and inflammation
substance P bradykinin 5-HT histamine prostaglandin
pain sensation is ultimately felt at ___________
cerebral cortex
define opioid peptides
endogenous mediators which mimic the effects of morphine
name few opioid peptides
leucine enkephalin
methionine enkephalin
dynorphin
b-edorphin
MOA of opioids
decrease interacellular 2nd messenger cAMP
opening of K channels
inhibition of Ca channels
morphine is metabolized into _________ & ___________
morphine 3 gluc-uronide
morphine 6 gluc-uronide
tell about morphine 3 glucuronide
is a morphine antagonist
tell about morphine 6 glucuronide
more analgesic effect than morphine
two symptoms of morphin toxicity
CNS exitation
constipation
3 symptoms of morphine withdrawl syndrome
hyper-irritability
excessive motor activity
teeth chattering