Week 6: Insomnia and Nicotine Flashcards
What are the stages of sleep?
NREM
1. Falling asleep
2. Light sleep
3 and 4: Deep sleep
REM
5: Neither light nor deep, the body is more physiologically active
What is REM important for?
Regulation of mood and learning
How long is a NREM and REM sleep cycle?
90-120 minute
3-7 cycles
REM becomes longer and deep sleep becomes shorter
What is REM?
Dramatic physiological change from stage 4 NREM slow-wave sleep, to a state in which the brain becomes electrically and metabolically activated
What are the sleeping patterns of young adults?
Difficulty falling asleep
What are the sleeping patterns of middle age or older adults?
Staying asleep or decreased quantity
What is insomnia?
- Difficulty falling asleep
- Difficulty maintaining sleep
- Experiencing non-restorative sleep (not feeling rested)
What is primary insomnia?
Not caused by another sleep disorder, medical disorder, psychiatric disorder or mediation
What are examples of primary insomnia?
Inadequate sleep hygiene, travel, death of a loved one
What is secondary insomnia?
Caused by another sleep disorder, medical disorder, psychiatric disorder or medication
What are the duration classifications of insomnia?
- Short term: less than 3 months
- Chronic: greater than 3 months
What are the clinical presentation for insomnia?
- Difficulty falling asleep
- Short duration of sleep
3/ Frequent awakenings - Early morning awakenings
- Inability to fall back to sleep
- Impaired sleep quality due to dreams
- Impaired quality of life to sleep deprivation
How should we assess and monitor insomnia?
- Determine if any exclusions to self-treatment exist
- If in doubt, refer
What is the limit of self0treatment for insomnia?
10 days
What are the exclusions of insomnia?
- <12 YO
- > 65 YO
- Pregnant or breastfeeding
- Frequent nocturnal awakenings or early morning awakening
- Chronic Insomnia
- Secondary insomnia
- Significant sleep disturbance as defined by sleep-onset latency > 30 minutes
- wake after sleep onset (WASO) > 30 minutes
- sleep efficiency < 85%, and/or total sleep time < 6.5 hours
What should self-treatment insomnia be limited to?
Short term insomnia
What is the non pharm treatment for insomnia?
- Cognitive behavior therapy
- Good sleep hygiene
What is the pharm treatment for insomnia?
- Diphenhydramine
- Doxylamine
What is good sleep hygiene?
- Use bed for sleeping or intimacy only
- Establish regular patterns
- Avoid daytime naps
- Make bedroom comfortable
- Do something relaxing
- Avoid electronics
- Avoid large quantities of liquids
- Avoid large meals
- Limit alcohol and caffeine
- Exercise regularly
What is the MOA for diphenhydramine?
Ethanolamine antihistamine which block histamine 1 and muscarinic receptors
What is diphenhydramine used for?
Short term insomnia
What is the dose for diphenhydramine?
Take 30-60 minutes before bedtime
25-50 mg PO at bedtime
Is Diphenhydramine recommended for pediatrics?
Not for those under 12. Refer to behaviors interventions and good sleep hygiene instead
Is Diphenhydramine recommended for pregnancy?
Refer
Is Diphenhydramine recommended for lactation?
Refer
Is Diphenhydramine recommended for geriatric?
Refer to Beer’s list
What are the contraindications for diphenhydramine?
- BPH
- Narrow angle glaucoma
- CVD
- Dementia
What are the warnings of diphenhydramine?
- No alcohol
- No driving or operating heavy machinery
What are ADR of diphenhydramine?
- Paradoxical CNS stimulation
- Anticholineric effects
- Next morning hangover
What are the DDI of diphenhydramine?
Inhibits CYP2D6
What are complement therapies for insomnia?
- Melatonin
- Chamomile
- Valerian
- Kava
- Alcohol
- Mindfulness meditation
What are the available products for diphenhydramine?
- Capsules
- Gel caps
- Tablets
- Chewable
- Solutions
- Elixers
What is the etiology of drowsiness and fatigue?
- Inadequate sleep
2/ Disease states - Drug induced drowsiness and fatigue
What are the symptoms of drowsiness and fatigue?
- Yawning
- Eye rubbing
- Tendancy to fall asleep
- Decreased ability to focus and concentrate
How should we assess and monitor drowsiness and fatigue?
- Determine if any exclusions to self-treatment exist
- If in doubt, REFER
- Limit self-treatment to 10 days
What are the exclusions for drowsiness and fatigue self treatment?
- <12YO
- Pregnancy
- Breast feeding
- Heart disease
- Anxiety disorder
- Medication induced drowsiness
- Chronic fatigue defined as >6 months fatigue
What is the non pharm for drowsiness and fatigue?
- Identify and eliminate underlying cause
- Good sleep hygiene
What are the pharm for drowsiness and fatigue?
Caffeine
What is the MOA for caffeine?
Xanthine derivative which nonselective antagonizes A1 and A2 receptors of adenosine
What is the indication for caffeine?
Occasional use to help patients stay awake and improve mental alertness