Benzodiazepines - CNS depressants
- Drug of choice for generalized anxiety disorder. and Insomnia bind GABA (a receptor which causes its Cl- channel to open, decreasing excitability of post-synaptic neurons in limbic system. (which is the portion of the brain associated with emotion, learning and memory. - Benzodiazepines bind to GABA receptor and stimulate it to open chloride channels which are negatively charged. Goes into the area surrounding the neuron. If that neuron is surrounded by chloride it will be less likely to fire, and have an action potential. If it surrounded by positive ions it will be more likely to fire. Less likely to have thoughts or feelings of anxiety - Dependence and tolerance develop after longterm use
Antidote for benzodiazepines
Flumazenil
Barbiturates
used less commonly because benzos are safer
Zopiclone
What class of drugs is used most commonly to treat alcohol withdrawal?
Benzodiazepines.
- monitor and assess alcohol withdrawal every hour
this drug makes their behaviour more manageable
Tolerance
a person has diminished response to drugs due to extended use
Dependence
the person has been taking a med for a long time and become dependent on the medication to function normally and will go into S&S of withdrawal when the drug is discontinues