4.6 Pharmacotherapy of sleep disorders Flashcards
What disease states, meds, and substances are associated w insomnia?
- Anxiety, mood disorders
- Caffeine, nicotine
- Modafinil, beta agonists, BBs, thyroid meds, bupropion, decongestants, methylphenidate
What defines insomnia disorders?
Difficulties w sleep initiation, sleep maintenance, and/or early-morning awakening
How often and long must sxs occur for it to be an insomnia disorder?
Takes place at least 3 nights/week for at least 3 months
What is 1st line tx for insomnia disorders?
1st line tx is always non-pharm
- CBT and behavioral therapies ARE 1st LINE
- Sleep hygiene principles
Which drug class is the most commonly used sleep meds?
Z-hypnotics (zolpidem, eszopiclone, zaleplon)
What is the initial dose of zolpidem in women and elderly?
It is lower in these pt groups - 5 mg
What is a common SE of eszopiclone (lunesta)?
Metallic taste
What kind of substrates are z-hypnotics and how is their metabolism affected?
3A4 substrates - metabolism is impacted by 3A4 inhibition and induction
What are SEs of z-hypnotics?
- Somnolence, dizziness, ataxia, headaches
- Paracomnias: unusual actions while a person is sleeping; warning for all sleep meds
Is there an abuse potential w z-hypnotics?
Yes, they are controlled substances - potential for abuse
What happens if a pt uses z-hypnotics w other CNS depressants?
Additive effects - the effects of both drugs is greater
Which benzo is used for sleep?
Temazepam
What are the SEs of temazepam?
Drowsiness, dizziness, cognitive impairment, increased fall risk
What do all FDA approved meds for insomnia have?
Sleep behaviors warning
What meds are considered melatonin receptor agonists?
- Ramelteon
- Tasimelteon
What is ramelteon CI w?
Fluvoxamine
What are SEs of ramelteon?
GI upset, next day somnolence, hyperprolactinemia, prolactinoma
What is tasimelteon approved for?
FDA approved for non-24 sleep-wake disorder (blind) in adults
What substrates are ramelteon and tasimelteon and what is the caution w this?
1A2 substrates: watch for 1A2 inducers and inhibitors
What drugs are in the orexin receptor antagonists class?
- Suvorexant
- Lemborexant
- Daridorexant
How much sleep should a pt taking orexin receptor antagonists get?
At least 7 hrs of sleep
What are orexin receptor antagonists CI in?
CI in narcolepsy - causes narcolepsy-like SEs
What substrate is orexin receptor antagonists?
3A4 substrate
What is the MOA of doxepin (silenor)?
TCA - low doses exert effect through H1 receptor antagonism