CNS depressants and sedatives Flashcards
what are the benzodiazepine sedative-hypnotic drugs?
- flurazepam
- temazepam
- triazolam
- midazolam
what are the benzodiazepine anxiolytic drugs?
- alprazolam
- clorazepate
- diazepam
- lorazepam
- oxazepam
what are the benzodiazepine-like (Z) drugs?
- zolpidem
2. eszopiclone
what is the serotonin agonist anxiolytic drug?
buspirone
what are the therapeutic uses for sedative-hypnotic drugs?
relief of anxiety and insomnia
which chemical moiety is responsible for the sedative-hypnotic effects of benzodiazepines?
electronegative substituent in the 7 position
where are benzodiazepines metabolized?
liver
what are the three metabolites of benzodiazepine metabolism? what are their half lives?
- inactive soluble glucuronides (3-hydroxy benzos) - short half life
- weakly active (triazolo benzos) - short half life
- long lived active (2-keto benzos) - long half life
which benzodiazepine metabolites are not influenced by age? which ARE influenced by age?
- not influenced by age - 3-hydroxy
2. influenced by age - 2-keto
what is the mechanism of action for benzodiazepines?
- potentiate effects of GABA at GABAa receptors
2. increase frequency of opening and conductance
what are the major adverse effects of benzodiazepines?
- respiratory depression
- tolerance
- anterograde amnesia
- dependence
- withdrawal
what is the function of flumazenil?
benzodiazepine antagonist
what is the mechanism of action of benzodiazepine antagonists?
compeititive inhibitor that binds to the BZ receptor - reverses effects of benzodiazepine
what is the clinical use for the benzodiazepine-like (Z) drugs?
insomnia
what are the barbiturate drugs?
- pentobarbital
- phenobarbital
- thiopental