pre-med drugs Flashcards
why would you use pre-meds?
provides sedation and analgesia
calms the patient
drug sparing effect
helps with some adverse effects of the anaesthetic.
facts about phenothiazines
ACETYLPROMAZINE (ACP)
tranquilliser
large breeds tend to be more sensitive
small breeds are more resistant
advantages of using phenothiazines
increasing the dose means it lasts a longer duration
smoother recover
cardiovascular friendly
smooth muscle relaxant
disadvantages of using phenothiazines
slow to peak
no analgesia
unpredictable effects
facts about Alpha 2’s
MEDETOMIDINE
DEXMOTOMIDINE
binds to receptors in the brain and spinal cord
great for aggressive animals
advantages of using Alpha 2’s
drug sparing effects
provides muscle relaxant
provides analgesia
disadvantages of using alpha 2’s
effects of the cardiovascular system
respiratory depression
reduced liver flow
may cause vomiting
facts about opioids
MORPHINE
METHADONE
BUPRENOPHINE
opioids binds to opioid receptors in the CNS
it can be topped up
has an antidote (naloxone)
advantages of using opiods
provides analgesia
little effects on the cardiovascular and respiratory systems
drug sparing
disadvantages of using opiods
vomiting due to morphine urine retention constipation high doses can cause respiratory depression supresses cough
facts about Benzodiazepines
DIAZPAM
MIDAZOLAM
combo with opiods as a pre-med
work on the neurotransmitter GABA
advantages of using benzodiazepines
minimal effects on the cardiovascular system
safe
good muscle relaxant
anti-epileptic action
disadvantages of using benzodiazepines
unpredictable effects
in a healthy animals its not sufficient as a pre-med
diazepam I/M is painful
facts about anti-muscarninics
ATROPINE
acts on the synapse
these are parasympathetic antagonists
advantages of using anti-muscarninics
reduced saliva and mucus secretions
counteracts bradycardia
