Sleep- Narcolepsy Flashcards
Narcolepsy definition
Impairment of both onset and offset of REM and NREM
Narcolepsy tetrad
EDS, cataplexy, hallucinations, sleep paralysis
Narcolepsy patho
Loss of normal function of hypocretin-orexin neurotransmitter system
Narcolepsy nonpharm treatment
Sleep hygiene, scheduled daytime naps, avoid drugs that can worsen daytime sleepiness (BZDs, opiates, APS, alcohol)
Standard pharm treatment for narcolepsy
Modafinil, armodafinil
Medications used in cataplexy in insomnia
Fluoxetine, venlafaxine, atomoxetine, clomipramine, imipramine, nortriptyline
Medications used in cataplexy
TCAs, SNRIs, SSRIs
Meds used in EDS treatment in narcolepsy
Modafinil, armodafnil, solriamfetrol, pitolisam, amphetamine, methylphenidate, sodium oxybate
Meds used in cataplexy for insomnia treatment
Fluoxetine, venlafaxine, atomoxetine, clomipramine, imipramine, nortriptyline
Modafinil ADEs
HA, nausea, anxiety/nervousness, dizziness, dyspepsia, xerostomia, back pain, rhinitis
Armodafinil ADEs
HA, insomnia, dizziness, nausea, xerostomia
What patient population should you avoid modafinil and armodafinil in?
Pregnancy
What disease state should you use modafinil and armodafnil with caution in?
CVD
Modafinil, armodafnil DDIs
May decrease contraceptive effectiveness
Solriamfetol MoA
Dopamine and NE reuptake inhibitor
Solriamfetol ADEs
HA, anxiety, insomnia, decreased appetite, nausea
Solriamfetol CI
MAOI use within 14 days
Avoid using solriamfetol in what disease state?
Unstable CVS, arrhythmias, etc.
Pitolisant MoA
Antagonist at histamine-3 receptors
Pitolisant is a major substrate of what CYP enzymes?
2D6, 3A4
Pitolisant ADEs
HA, anxiety, musculoskeletal pain
Pitolisant CI
Severe hepatic impairment
You have to lower the dose of pitolisant in what patients?
Poor 2D6 metabolizers
Modafinil, armodafnil, and solriamfetol are controlled substances. What Schedule are they?
CIV
Sodium oxybate is a controlled substance. What Schedule is it?
CIII
Sodium oxybate BBWs
CNS depression, abuse/misuse, restricted access (REMS!)
What’s unique about sodium oxybate dosing?
You take the first dose at bedtime after the patient is in bed, then you take the second dose 2.5-4 hours later
Sodium oxybate MoA
CNS depressant
Active moiety of sodium oxybate
GHB
Sodium oxybate ADEs
Confusion, HA, dizziness, weight loss/decreased appetite, urinary incontinence, drowsiness, depression, somnambulism, anxiety
What other drugs can you use for EDS?
Amphetamines, methylphenidate