Sleep Wake 2 Flashcards
What are the 3 “newer hypnotics?”
- Zolpidem
- Zaleplon
- Eszopiclone
Do benzodiazepines or “newer hypnotics” bind more selectively?
Newer hypnotics
When taking “newer hypnotics,” what drug can antagonize CNS depressant effects?
Flumazenil
What is a barbiturate that is not available in the US, is an adjunct to anesthesia (rapid / short acting) and is used as a truth serum?
Thiopental
Which drug?
- Facilitates / prolongs inhibitory effects of GABA and glycine
- Binds to receptor site different from benzodiazepines
- Actions not antagonized by flumazenil
- May also block excitatory transmitter glutamic acid & at high concentrations (sodium channels)
Barbiturates (tal)
3 uses for Barbiturates
- Anesthesia (thiopental)
- Insomnia / Sedation (secobarbital)
- Seizure disorders (phenobarbital)
Which drug?
- Extension of CNS depressant actions
- Tolerance
- Dependence liability > benzodiazepine
Toxicities of Barbiturates
- Which drug leads to coma/death?
- Which drug leads to just medullary depression/anesthesia?
- Barbiturates (coma)
- Benzodiazepines (anesthesia)
______ & _____ induce liver enzymes causing drug interactions.
- Barbiturates
- Carbamates
Barbiturates and carbamates induce liver enzymes causing drug interactions.
- Enzyme induction
- Can precipitate acute intermittent _____ in susceptible patients
- ___ ____ may displace coumarins from plasma protein binding sites and increase anticoagulant effects
- porphyria
- Chloral hydrate
Which drug?
- exhibit sedating properties
- effective in tx of mild insomnia & are generally safe
- tolerance develops to sedative effects
- increasing the dose will not produce linear increase in response
- Disadvantage of ______ side effects
- Histamine 1 receptor
Antihistamines
- anticholinergic
Antihistamines
- Diphenhydramine & doxylamine are more sedating than ______.
pyrilamine
Which drug?
- Are effective for inducing “sleep continuity”
- anticholinergic activity
- adrenergic blockade
- cardiac conduction prolongation adverse effects
Antidepressants
- amitriptyline
- doxepin
- nortriptyline
Low dose ____ has FDA approval for tx of sleep maintenance insomnia.
Doxepin
(antidepressant)
What are the 2 sedating antidepressants?
- ___ may promote sleep (cause daytime sedation/weight gain)
- ____ at bedtime is sedating and can improve sleep continuity
- Mirtazapine
- Trazodone
Which antidepressant should you prescribe for:
- pts prone to substance abuse (dependence is NOT a problem)
- pts w. selective serotonin reuptake inhibitor & buproprion-induced insomnia
Trazodone
Which drug’s side effects?
- Carryover sedation
- alpha adrenergic blockage –> orthostasis can occur at any age, but is more dangerous in elderly
- Priapism is a rare but serious side effect (prolonged erection)
Trazodone
Which antidepressant turns off wake signaling orexin (hypocretin)?
Suvorexant