benzodiazepines Flashcards
How do Benzodiazepines work?
enhance the effect of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) by increasing the frequency of chloride channels.
When are benzodiazepines used?
sedation
hypnotic
anxiolytic
anticonvulsant
muscle relaxant
How long should benzodiazepines be prescribed for?
short period of time
2-4 weeks
how should benzodiazepines be withdrawn?
steps of 1/8 every fortnight
switch patient patients to equivalent dose of diazepam if regardless of decreasing steps of 1/8 des not work
reduced dose of diazepam every 2-3weeks in steps of 2 or 2.5 mg
how much time is required to reduce dose of benzodiazepams?
4 weeks to 1 year
what are the symptoms of benzodiazepine withdrawal?
insomnia
irritability
anxiety
tremor
loss of appetite
tinnitus
perspiration
perceptual disturbances
seizures
what are the symptoms of benzodiazepine withdrawal syndrome?
insomnia
irritability
anxiety
tremor
loss of appetite
tinnitus
perspiration
perceptual disturbances
seizures
how long does it take to exhibit symptoms of benzodiazepine syndrome?
up to 3 weeks
how long does it take to exhibit symptoms of benzodiazepine syndrome?
up to 3 weeks
what is a way of remember role of benzodiazepines and barbiturates?
GABAA drugs
benzodiazipines increase the frequency of chloride channels
barbiturates increase the duration of chloride channel opening
Frequently Bend - During Barbeque
…or…
Barbidurates increase duration & Frendodiazepines increase frequency