Insomnia Flashcards
Changes in sleep architecture with hypnotics
reduce deep sleep and REM
Tolerence to hypnotics
after 3 days effects decline, chronic use can cause a rebound effect
Short-acting hypnotic
triazolam
Long-acting hypnotic
flurazempam
Benefits of short acting hypnotic
helps fall asleep, no day time drowsiness
Benefits of long-acting hypnotic
residual anti-anxiety effects
more effective on second night
tolerance does not develop
rebound less likely
Disadvantages of short acting hypnotic
no day time anti-anxiety
rebound can occur quickly.
anteriograde amnesia
sleep walking
Disadvantages of long-acting hypnotic
residual day time drowsiness
MOA of zolpidem
binds alpha-1 subunit GABA-A receptors only at benzodiazepine sites
pharmacokinetic of zolpidem
short half life, women get half the dose, metabolized by CYP3A4, can’t take with orange juice
Advantages of zolpidem
does not alter sleep architecture
no daytime drowsiness
low risk of tolerance
Disadvantages of zolpidem
sleep walking, driving, etc
Other alpha-1 selective hypnotics
Eszopiclone and zaleplon
Melatonin receptor agonist
Ramelteon
Ramelteon MOA
agonist at M1 and M2 melatonin receptors