Psychology Flashcards

1
Q

Major Depressive Disorder (MDD):
-Proposed etiology
-Medical conditions that can cause secondary depression
-Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5-TR): M SIG E CAPS
-What is Ham-D or HDRS?

A

Proposed etiology: combination of genetic, environmental, and biologic factors
-Decreased neurotransmitters: serotonin (5-HT), norepinephrine (NE), epinephrine (EPI), dopamine (DA), glutamate, and acetylcholine (Ach)

Medical conditions: stroke, PD, dementia, MS, hypothyroidism, vitamin D deficiency, metabolic conditions (hypercalcemia), malignancy, overactive bladder, infections

DSM-5-TR: at least 5 of the following in two week period which MUST also include depressed mood or diminished interest/pleasiure:
-M: Mood (depressed) Sleep (increased/decreased) Interest/pleasure (diminished)
-G: Guilt or feelings of worthlessness Energy (decreased) Concentration (decreased)
-Apetite (increased/decreased) Psychomotor agitation or retardation Suicidial ideation

HDRS: Hamiliton Depression Rating Scale: most widely used depression assessment for medical office that rates symptoms on numerical scale and total score is added to help assess need for medication adjustment

-Score <7: no depression

-Score 7-17: mild depression

-Score 18-24: moderate depression

-Score 25 or higher: severe depression

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2
Q

What are drugs that can cause or worsen depression?

A

ADHD medications: atomoxetine (Strattera)

Analgesics: indomethacin

Antiretrovirals: NNRTIs (efavirenza, rilpivirine)

CV meds: beta-blockers (more often non-selective especiallly propranolol)

Hormones: hormonal contraceptives, anabolic steroids

Others:
-Antidepressants: BBW
-Benzodiazepines
-Systemic steroids
-Interferons
-Varenicline
-Ethanol

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3
Q

Major Depressive Disorder (MDD):
1. What is important to rule out before TX and why?

  1. What are natural products that may be used for depression? What is their evidence/considerations?
  2. How long does it take a typical antidepressant to truly work?
A
  1. Bipolar disorder - to avoid inducing mania or causing rapid cycling between mania and depression
    -When depression and anxiety occur together, BZDs should NOT be used alone as they can mask or worsen depression and be problematic in substance misuse disorders
  2. St. John’s Wort, SAMe (S-adenosyl-L-methionine), and 5-HTP (5-hydroxytryptophan), valerian
    -Efficacy: less evidence
    -St. John’s Wort:* weak recommendation to use in pts NOT pregnant or breastfeding and prefer herbal; broad-spectrum CYP450 enzyme inducer with many DDIs; also photosensitizing*
    -St. John’s Wort, SAMe, and 5-HTP: may increase risk of serotonin syndrome
    -SAMe: bleeding risk
  3. 4-8 weeks
    -Physical symptoms such as low energy improve within 1-2 weeks
    -Psychological symptoms: month or longer
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4
Q

What is the BBW all antidepressants have? What are withdrawal symptoms of D/C antidepressants abruptly?

A

BBW: * Increase in suicidal thoughts or actions in some children, teenagers, or young adults within first few months of TX or when dose changed
-MedGuides are REQUIRED*

Withdrawal symptoms: anxiety, agitation, insomnia, dizziness, flu-like symptoms
-Usually occurs for a week
-Can be improved when re-taking antidepressant
-Taper drugs gradually over weeks (exception of fluoxetine because of long T1/2)

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5
Q

Depression in Pregnancy and Postpartum Depression
1. Are antidepressants recommended during pregnancy?

  1. What is first line TX?
  2. What are antidepressant recommendations during pregnancy?
  3. What are antidepresssant recommendations during postpartum depression?
A
  1. YES - benefit outweighs risk; untreated depression especially in 1st and 3rd trimestere can cause adverse outcomes (premature birth, low birth weight, postnatal complications)
  2. Psychotherapy
    -Side note: breastfeeding can help
  3. Outweigh risk versus benefit
    -Pt has been on antidepressant: consider continuing same medication
    -Pt not currently taking antidepressant: SSRIs (escitalopram, sertraline) first-line options (paroxetine: AVOID due to cardiac effects) –> SSRIs carry warning of persistant pulmonary HTN of newborn (PPHN)
    -Can taper off medication if mild depression and pt has had no symptoms for 6 months
    -Avoid doxepin
  4. SSRIs preferred
    -Alternatives: IV brexanolone (Zulresso), oral zuranolone (Zurzuvae): CIV indicated for postpartum (can cause excessive sedation)
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6
Q

Selective Serotonin Reuptake Inhibitors (SSRIs):
-Drugs/Brands
-MOA
-ROA
-TX
-Structure

A

Drugs: citalopram (Celexa), escitalopram (Lexipro), fluoxetine (Prozac), paroxetine (Paxil, Paxil CR), sertraline (Zoloft), fluvoxamine

MOA: inhibit reuptake of 5-HT, weakly affect NE and DA

ROA: PO
-ALL: available in solution (except: fluvoxamine)

TX: depression, variety of anxiety disorders
-Fluvoxamine: ONLY for OCD
-Paroxetine (Brisdelle): can be used for severe vasomotor symptoms associated w/ menopause
-Fluoxetine: can be combined w/ olanzapine for TX-resistant depression
-Fluoxetine, Paxil CR, sertraline: also approved for premenstrual dsyphoric disorder (PMDD): can be continuous or intermittent dosing

Structure: escitalopram is the S-enantiomer of citalopram

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7
Q

Selective Serotonin Reuptake Inhibitors (SSRIs): Dosing
-Citalopram
-Escitalopram
-What time of day should SSRIs be taken?

A

Citalopram: 20-40mg PO QD
-Max dose: 40mg/day
-Max dose in eldery (>60 yo): 20mg/day

Escitalopram: 10mg PO QD
-Max dose: 20mg/day
-Max dos in elderly (>60 yo): 10mg/day

Timing:
-MOST activating: FLUOXETINE (take in AM)
-MOST sedation: PAROXETINE, fluvoxamine (take in PM)
-Others: take dose in AM; if causing sedation, take in PM

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8
Q

Selective Serotonin Reuptake Inhibitors (SSRIs):
-AVEs
-Warnings
-CIs

A

AVEs:
-SEXUAL SIDE EFFECTS: decreased libido, ejaculation difficulties, anorgasmia, ED
-KNOW: somnolence, insomnia, nausea, dry mouth, diaphoresis (dose-related), weakness, tremor, dizziness, HA
-Osteopenia/osteoporosis, restless leg syndrome

Warnings:
-QT PROLONGATION: especially with citalopram > escitalopram (max dosing for elderly, liver disease, or w/ poor CYP2C19 metabolizer or on 2C19 inhibitors) –> sertraline MOST preferred in cardiac risk
-Syndrome of Inappropriate Antidiuretic Hormone (SIADH)/HYPONATREMIA, FALL RISK (Beer’s Criteria) –> caution in hx of falls/fractures or use of CNS depressants
-BLEEDING (additive risk)

CIs:
-DO NOT USE WITH MAOIs, IV methylene blue, or pimozide (increases risk for pimozide toxicity)
-Fluoxetine, paroxetine: do not use w/ thioridazine
-Fluvoxamine: do not use w/ alosetron, thioridazine, or tizanidine
-Sertraline solution: do not use w/ disulfiram
-Brisdelle (paroxetine): PREGNANCY

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9
Q

SSRIs: DDIs

A
  1. MOAis - 5-HT syndrome OR hypertensive crisis
    -Allow 2 week interval between MAOI and SSRI (EXCEPTION: fluoxetine: 5 weeks)
    -do NOT initiate in pts receiving linezolid or IV methylene blue (5-HT syndrome as well)
  2. QT prolongation: other QT prolonging drugs, especially w/ citalopram, escitalopram
  3. Bleeding risk: anticoagulants, antiplatelets, NSAIDs, select natural products (gingko, garlic, ginger, ginseng, glucosamine, fish oil), thrombolytics
  4. Fluoxetine, paroxetine, fluvoxamine: CYP2D6 inhibitors

-Tamoxifen: requires CONVERSION via 2D6 (decreased efficacy) –> venlafaxine preferred

-Some antipsychotics (aripiprazole, olanzapine) are 2D6 substrates and may need lower dose

-do NOT use w/ thioridazine, pimozidine, or cimetidine

-Cuation in drugs that cause orthostasis or CNS depression (fall risk)

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10
Q

Vilazodone and Vortioxetine:
-Brand
-MOA
-ROA
-Adminsitration considerations
-AVEs
-Warnings
-CIs
-DDIs

A

Brand: vilazodone (Viibryd, Viibryd Starter Pack), vortioxetine (Trintellix)

MOA: “SSRI Combined Mechanism”
-Vilazodone: SSRI + 5-HT1a partial agonist
-Vortioxetine: SSRI + 5-HT3 receptor antagonist + 5-HT1a partial agonist

ROA: PO

Administration considerations (Vilazodone): take with food

AVEs: less sexual side effects than SSRIs and SNRIs, N/V/D, insomnia, decreased libido
-Vortioxetine: constipation

Warnings: avoid in pts w/ seizure hx

CI: within 14 day use of MAOI; do NOT use w/ linezolid or IV methylene blue

DDI: vortioxetine - lower dose by 50% w/ 2D6 inhibitors (ex. bupropion, fluoxetine, paroxetine, or quinidine)

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11
Q

Serotonin and Norepinephrine Reuptake Inhibitors (SNRIs):
-Drugs/Brands
-ROA
-TX
-Dosing for venlafaxine

A

Drugs: venlafaxine (Effexor XR), duloxetine (Cymbalta), desvenlafaxine (Pristiq), levomilnacipran (Fetzima)

ROA: PO

TX: depression, variety of anxiety disorders
-Venlafaxine: depression, GAD, panic disorder, social anxiety disorder
-Duloxetine: depression, peripheral neuropathy, fibromyalgia, GAD, chronic musculoskeletal pain

-Desvenlafaxine: approved for depression ONLY

Venlafaxine max dose: 375mg/day (IR formula)

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12
Q

Serotonin and Norepinephrine Reuptake Inhibitors (SNRIs):
-AVEs
-Warnings
-CIs

A

AVEs:
-Side effects simliar to SSRIs (sexual SEs, somnolence/insomnia, nausea, dry mouth, weakness, tremor, dizziness, HA, osteopenia/osteoporosis, restless leg snydrome)

-SEs related to NE: increased HR, dilated pupils (can lead to narrow angle glaucoma), dry mouth, excessive sweating, constipation

-Can affect uretheral resistance: caution in pts prone ot obstructive urinary disorders

-Increased BP: greatest risk w/ venlafaxine >150mg/day

-Pristiq: can leave ghost tablet in stool

Warnings:
-SIADH/hyponatremia, fall risk (Beer Criteria)
-Bleeding risk

CIs:
-Use with MAOIs
-Do NOT initiate in pt receiving linezolid or IV methylene blue
-do NOT use levomilnacipran w/ CrCl <15mL/min or duloxetine w/ CrCl <30mL/mi

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13
Q

Serotonin and Norepinephrine Reuptake Inhibitors (SNRIs): DDIs

A
  1. MAOIs: need washout period of 2 weeks
    -Do NOT initaite w/ linezolid or IV methylene blue
  2. Additive QT prolongation risk with venlafaxine
  3. Caution w/ medcations that can increase BP
  4. Duloxetine: moderate CYP2D6 inhibitor –> tamoxifen requires 2D6 for conversion
  5. Bleeding risk w/ anticoagulants, antiplatelets, NSAIDs, natural products (garlic, gingko, ginger, ginseng, glucosamine, fish oils), thrombolytics
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14
Q

Tricyclic Antidepressants (TCAs):
-Drugs/Brand
-MOA
-ROA
-What time to day to take?
-TX
-Structure

A

Drugs/Brands/Structure:
-Tertriary amines (slightly more affective, but more AVEs): amitriptyline (Elavil), doxepin (Silenor, Zonalon), clomipramine, imipramine, trimipramine

-Secondary amines (relatively selective for NE, but less effective): notriptyline (Pamelor), amoxapine, desipramine, maprotiline, protripytline

MOA: inhibit NE and 5-HT reuptake
-Also inhibits: ACh and histamine receptors

ROA: PO
-Amitriptyline: QHS or divided doses

TX: depression
-Silenor: insomnia
-Zonalon cream: pruritus

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15
Q

Tricyclic Antidepressants (TCAs):
-AVEs
-CIs
-DDIs

A

AVEs:
-Cardiotoxicity:
1. QT PROLONGATION with overdose (monitor for SI as overdose can quickly cause fatal arrhythmias) –> obtain ECG baseline if cardiac risk factors or >50 yo
2. Orthostasis
3. Tachycardia

-*Anticholinergic (Beer’s Criteria): *
1. Dry mouth, blurred vision, urinary retention, constipation –> taper off to avoid cholinergic rebound
2. Vivid dreams, weight gain (varies w/ agent), sedation, sweating, myoclonus (muscle twitching - symptom of drug toxicity)
3. Risk of falls - avoid if hx of falls/fractures or use w/ CNS depressants

CIs: do NOT use w/ MAOIs, linezolid, or IV methylene blue; MI; glaucoma and urinary retention (doxepin)

DDIs:
-MAOIs and hypertensive crisis: two-week washout period
-Additive QT prolongation risk

-Metabolized by CYP2D6

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16
Q

Bupropion:
-Brands, ROAs, and their associated indications
-Dosing
-MOA
-AVEs
-Warnings
-CIs

A

Brands:
-Wellbutrin SR or XL: depression
-Wellubtrin XL and Aplenzin: seasonal affective disorder (SAD)
-Buproprion SR (Zyban): smoking cessation
-With dextromethorphan (Auvelity): ER tablet for depression
-With naltrexone (Contrave): weight management

Dosing: do NOT exceed 450mg/day due to seizure risk in IR and XL

MOA: DA and NE reuptake inhibitor

AVEs: dry mouth, CNS stimulation (insomnia, restlessness), tremors/seizures (dose-related), weight loss, HA/migraine, N/V, constipation, possible BP changes (more HTN than than hypotension)
-Sexual dysfunction: rare (no effect on 5-HT) –> can use if issues w/ other antidepressants
-Auvelity: dizziness, excessive sweating

Warnings: neuropsychiatric AVEs when used for smoking cessation (mood changes, hallucinations, paranoia, aggression, anxiety)

CI:
-Seizure disorder, hx of anorexia/bulimia (eating disorders), abrupt D/C of ethanol or sedatives
-do NOT use with MAOIs (allow 2-week washout), linezolid, or IV methylene blue or other forms of bupropion

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17
Q

Monoamine Oxidase Inhibitors (MOAIs):
-Drugs/Brands
-MOA
-ROA
-TX

A

Drugs:
-Nonselective MAOIs: isocarboxazid (Marplan), phenelzine (Nardil), tranylcypromine (Parnate)
-Selective MAO-B: selegiline (Emsam, Zelepar)

MOA: inhibit monoamine oxidase that breaks down catecholamines, including 5-HT, NE, EPI, and DA
-MOA-A: 5-HT, DA, EPI, and NE
-MOA-B: DA

ROA: PO
-Emsam: transdermal patch

TX: depression
-Zelepar: ODT for Parkinson disease

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18
Q

Monoamine Oxidase Inhibitors (MOAIs):
-AVEs
-Warnings
-CIs

A

AVEs:
-Anticholinergic: taper upon D/C to avoid cholinergic rebound
-Orthostasis
-Sedation (except tranylcypromine causes stimulation)
-Sexual dysfunction, weight gain, HA, insomnia
-Selegline: constipation, gas, dry mouth, loss of appetite, sexual dysfunction

Warnings:
-NOT commonly used
-Watch for DDIs and drug-food interactions (CAN BE FATAL)
-Hypertensive crisis or serotonin syndrome with TCAs, SSRIs, SNRIs, many other drugs, and tyramine-containing foods

CIs:
-Hx of CVD, cerbrovascular defect, HA, hepatic disease, pheochromocytoma
-do NOT use w/ other sympathomimetics (hypertensive crisis)
-Severe renal disease (isocarboxazid, phenelzine)

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19
Q

Monoamine Oxidase Inhibitors (MOAIs): DDIs

A

To avoid hypertensive crisis, serotonin syndrome, or psychosis: DO NOT USE WITH drugs that increase EPI, NE, 5-HT, or DA

  1. Increase 5-HT: SSRIs, SNRIs, mirtazapine, trazodone, triptans, buspirone, dextromethorphan, linezolid, lithium, tramadol, opioids, St. John’s Wort
  2. Increase EPI: buproprion, SNRIs, levodopa, linezolid, methylene blue, stimulants for ADHD and OTC diet pills/herbal weight loss products
  3. Tyramine-rich foods that increase NE: aged cheese, pickled herring, yeast extract, air-dried meats, sauerkraut, soy sauce, fava beans, some red wines and beers (tap beer and any beer that has NOT been pasteurized - canned and bottle beers contain little or no tyramine)
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20
Q

Mirtazapine:
-Brand
-MOA
-ROA
-TX
-AVEs
-Warnings
-CIs

A

Brand: Remeron

MOA: central presynaptic alpha-2 adrenergic antagonist effects that increase NE and 5-HT

ROA: PO

TX: most commonly in oncology and skilled nursing facilities to help with sleep (dosed as QHS) and increase appetite in frail

AVEs: sedation, increased appetite, weight gain, dry mouth, dizziness, agranulocytosis (rare)

Warnings: anticholinergic effects, QT prolongation, blood dyscrasias, CNS depression

CIs: do NOT use w/ MAOIs, linezolid, or IV methylene blue

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21
Q

Trazodone:
-Brand
-MOA
-ROA
-What time of day to take?
-TX
-AVEs
-CIs

A

Brand: Desyrel, Oleptro

MOA: inhibits 5-HT reuptake; inhibits H1 and alpha-1 adrenergic receptors

ROA: PO QHS

TX: rarely for antidepressant effects –> off-label for sleep

AVEs: sedation (ER may be less sedating), orthostasis (risk of falls in elderly), sexual dysfunction and risk of priapism (go to ER for painful erection longer than 4 hours)

CIs: do NOT use w/ MAOIs, linezolid, or IV methylene blue

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22
Q

Nefazodone:
-MOA
-ROA
-AVEs
-CIs
-BBW

A

MOA: inhibits 5-HT and NE reuptake, 5-HT2, and alpha-1 adrenergic receptors

ROA: PO

AVEs: similar to trazodone, but less sedating
-Trazodone side effects: sedation, orthostasis (risk of falls in elderly), sexual dysfunction and risk of priapism (go to ER for painful erection longer than 4 hours)

CIs:
-Hepatic disease
-Concurrent use w/ MOAIs, carbamazepine, cisapride, pimozide, or triazolam

BBW: hepatotoxicty (less used due to this)

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23
Q

Select an antidepressant or what not to use based on the following scenarios:
1. Cardiac/QT risk

  1. Smoker
  2. Peripheral neuropathy or pain
  3. Seizure risk
A
  1. Cardiac:
    -Sertraline is preferred
    -do NOT choose a QT-prolonging drug/dose (ex. high doses of escitalopram/citalopram, venlafaxine)
    -Watch for additive QT effects: SSRIs, SNRIs, TCAs, mirtazapine, or trazodone
  2. Smoker: buproprion SR
  3. Peripheral neuropathy or pain: duloxetine
  4. Seizure risk: avoid bupropion
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24
Q

Select an antidepressant or what not to use based on the following scenarios:
1. Pregnancy

  1. Daytime sedation
  2. Sexual dysfunction
A
  1. Pregnancy:
    -Mild-moderate depression: psychotherapy always
    -Certain SSRIs (escitalopram, sertraline) are first-line for drug therapy
    -Avoid: paroxetine
  2. Daytime sedation:
    -Actiavting medications in AM (fluoxetine, bupropion)
    -Sedating drugs later in day (paroxetine, mirtazapine, trazodone)
  3. Sexual dysfunction:
    -High risk: SSRIs, SNRIs
    -Low risk: bupropion, mirtazapine
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25
*Treatment-resistant depression:* 1. American Psychiatric Association (APA): guidelines state patient should receive a ____ week trial of medication at a THERAPEUTIC dose before conclude that drug is NOT working. 2. If a patient is NOT improving at this time interval, what should be considered?
1. 4-8 2. Consider: -Changing to new antidepressant -Increase antidepressant dose -Use combination of antidepressants with different MOAs -Augment with buspirone or a low dose of an atypical antidepressants (aripiprazole, olanzapine + fluoxetine = Symbyax, quetiapine XR, brexipiprazole, cariprazine) -Esketamine nasal spray -Augment with lithium, thyorid homrone, or in some cases, electroconvulse therapy (ECT)
26
Esketamine: -Brand -MOA -ROA -Administration considerations -TX -BBW
Brand: Spravato MOA: NMDA receptor antagonist ROA: nasal spray Administration Considerations: -*Must be administered under supervision of healthcare provider, monitoring for at least 2 hours following administration -Restricted distribution under Spravato REMS program* TX: TX-resistant depression, depression with suicidality BBW: -Sedative and dissociative or perceptual changes, potential for abuse and misuse -Antidepressants increase the risk of suicidal thinking and behavior in children, adolescents, and young adults
27
Schizophrenia: -Pathophsyiology -DSM-5 Diagnostic criteria -Potent natural product for many psych conditions
Pathophysiology: altered brain structure and chemistry primarily involving increased dopamine, serotonin, and glutamate DSM-5: -Negative s/sx: loss of interest, *lack of emotion (apathy), social withdrawl, loss of motivation (avolition), lack of speech (alogia)*, inability to plan or carry out activities, poor hygiene -Positive s/sx: *hallucinations (auditory, visual, or somatic), delusions, disorganized thinking/behavior*, incoherent speech, difficulty paying attention Potential Natural Product: fish oil (for inflammation often related to stress)
28
*Drugs that can cause psychotic symptoms*
-Anticholinergics (centrally-acting, high doses) -Dextromethorphan, when used not as indicated -Dopamine or dopamine agonists -Inteferons -Stimulants especially if already at risk -Systemic steroids (typically with lack of sleep -- ICU psychosis) -Illict/recreational substances: cannabis, cocaine, lysergic acid diethylamide (LSD), methamphetamine (ice, crystal), phencyclidine (PCP), synthetic cathinons (bath salts, MDPV)
29
Schizophrenia: 1. General TX (cons of TX?) 2. Which symptoms are usually harder to treat? 3. BBW for all antipsychotics
1. *General TX:* antipsychotics to block dopamine (newer ones can block 5-HT) -First line: second generation antipsychotics (SGAs) due to less extrapyramidal symptoms (EPS) unless a pt is already stabilized on a first generation antipsychotic (FGAs) -Cons: blocking DA can affect pathways involved in focus, attention, and movement 2. Negative symptoms 3. *BBW - NOT indicated for agitation control in elderly with dementia-related psychosis (increased mortality risk mostly due to CV conditions) --> MEDGUIDE REQUIRED -Some also carry warning of stroke in pts with dementia -ALL carry warning for falls*
30
*Define the types of EPS* -Dystonias -Dyskinesias -Akathisia -Tardive dyskinesias (TD)
Dystonias: very painful muscle contractions (common especially in young males) Dyskinesias: abnormal movements Akathisia: restlessness, inability to remain still TD: repetitive, involuntary movements (ex. grimacing and eye blinking) --> can be IRREVERSIBLE and drug should be D/C
31
Schizophrenia: Why is adherence to TX usually poor, and what are some ways to combat it?
*Adherence poor often from pt's inability to recognize the illness; can also have dysphagia* -Long-acting injectables (LAIs): given IM or SQ to eliminate PO QD dosing (ex. Haldol Decanoate, Risperdal Consta, Invega Sustenna, Abilify Maintena) -ODTs: useful in dysphagia and provent cheeking (tablets hidden in cheek and spit out later) --> Abilify Discmelt, Clozapine Fazaclo, Risperidal M-Tab, Zyprexa Zydis, Saphris -Oral solutions/suspensions: useful for children and with feeding tubes -Acute IM injections (haloperidol, fluphenazine, Zyprexa, Geodon): provide "STAT" relief to calm down agitated pt for their safety and others --> can be given as cocktails such as with BZDs and anticholinergics to re
32
First Generation Antipsychotics (FGAs): -List drugs and their brands based on: low, medium, and high potency (what are the differences regarding AVEs?) -Structure -MOA
Low potency: chlorpromazine, thioridazine -Increased sedation and lower EPS risk Medium potency: loxapine (Adasuve), perphenazine High potency: decreased sedation and higher EPS risk -*haloperidol (Haldol, Haldol Decanoate)* -fluphenazine -thiothixene -trifluoperazine Structure: -*Many are in phenothiazine class (end in -azine)* -Haloperidol: in butyrophenone class MOA: mainly block dopamine-2 (D2) receptors with minimal 5-HT2A blockade
33
First Generation Antipsychotics (FGAs): -AVEs -Warnings -BBW
AVEs: -*Sedation, dizziness, anticholinergic effects*, increased prolactin -*EPS: can give anticholinergic* (ex. benztropine or Benadryl) to limit/avoid painful dystonic reactions -Adasuve (loxapine): dysgeusia (bad, bitter, or metallic taste in mouth) -Injections (haloperidol, fluphenazine): injection site pain/redness *Warnings:* -CV: QT prolongation (especially w/ thioridazine, haloperidol, chlorpromazine, orthostasis/falls, tachycardia) -Anticholinergic: constipation, xerostomia, blurred vision, urinary retention -CNS depression -EPS: including Parkinsonims, dystonic rxns, akathisia, TD (increased EPS with injections) -Hyperprolactinemia: infertility, oligomenorrhea/amenorrhea (fewer or no menstrual periods), galactorrhea (abnormal breast discharge), ED/decreased libido -Neuroleptic maligant syndrome (NMS): monitor for mental status changes, fever, muscle rigidity, autonomic instability -Blood dyscrasisa (leukopenia, neutropenia, agranulocytosis), ocular effects BBW: *elderly pts w/ dementia-related psychosis (increased mortality risk) -Thioridazine: QT prolongation* -Adasuve (loxapine): bronchospasm (REMS program)
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Aripiprazole: -Brand -MOA -ROA -AVEs
Brand: Abilify MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors -*Unique MOA: D2 and 5-HT1a partial AGONIST* ROA: *PO or IM* -Abilify MyCite: tablets embedded w/ ingestible sensor to track drug compliance -IM: Ability Maintena, Aristada, Abilify Asimtufii -Aristada Initio: one-time IM LD along with PO abilify when starting or restarting Aristada AVEs: *akathisia*, activation or sedating, HA, anxiety, constipation -*Lower risk of weight gain, some QT prolongation, ESP more in children*
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Clozapine: -Brand -MOA -ROA -TX
Brand: *Clozaril* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO TX: NO sooner than 3rd-line for schizophrenia (very effective and decreased risk of EPS/TD, BUT serious other side effects related to metabolic and neutropenia)
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Clozapine: -AVEs -BBW -Monitoring
AVEs: *agranulocytosis, seizures, constipation*, somnolence, metabolic syndrome (increased weight, BG< lipids), sialorrhea (hypersalivation), hypotension BBW: -*Significant risk of life-threatening neutropenia/agranulocytosis (REMS program)* -Bradycardia, orthostatic hypotension, syncope and cardiac arrest (risk highest in initial titration period, especially w/ rapid dose increases --> titrate slowly) -*Myocarditis and cardiomyopathy* --> D/C if suspected -*Seizures (dose-related):* start at no higher than 12.5mg QD or BID, titrate slowly using divided doses (use in caution w/ hx of seizure, head trauma, alcoholism, or takine medications that lower seizure threshold) *Monitoring:* -REMS: prescribers and pharmacies must be certified and pts must enroll -To start TX: baseline ANC must be >/=1500/mm3; check ANC weekly x6 months then Q2 weeks x6 months then Qmonth --> stop therapy if ANC <1000/mm3
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Lurasidone: -Brand -MOA -ROA -Administartion considerations -AVEs -CI
Brand: *Latuda* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO Administration Considerations: take CF (at least 350 kcal) AVEs: *somolence, EPS (dystonias), nausea -Decreased risk of metabolic syndrome compared to other SGAs* CI: use w/ CYP450 3A4 inducers and inhibitors
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Olanzapine: -Brand -MOA -ROA -Administration considerations -AVEs -BBW
Brand: *Zyprexa* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO, IM Administration: take QHs (due to sedation) AVEs: *somnolence, metabolic syndrome (increased weight, BG, lipids)*, orthostasis BBW (Zyprexa Relprevv): *sedation (including coma) and delirium (agitation, anxiety, confusion, disorientation) following injection; must administer in registered healthcare facility and pts to be monitored 3 hours post-injection (Zyprexa RElprevv REMS program requirements)*
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What medications may you see combined with olanzapine? Olanzapine should NOT be combined with ________ due to excessive risk of sedation and breathing difficulty.
Drugs Combos: -Fluoxetine + Olanzapine = Symbyax: TX-resistant depression -Samidorphan + Olanzapine = Lybalvi: schizophrenia, bipolar disorder --> samidorphan is an opioid recepotr antagonist that can help mitigate weight gain from olanzapine (CI in pts taking opioids or undergoing acute opioid withdrawl) *Sedation and breathing difficulty risk: combined w/ BZDs*
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Paliperidone: -Brand -MOA -ROA/Dosing frequency -TX considerations -AVEs
Brand: *Invega* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors -Very similar to risperidone, just lasts longer ROA: PO or IM -*Invega Trinza: IM Q3 months -Invega Hafyera: IM Q6 months* TX considerations: adequate TX w/ IM must be established before starting Invega Trinza or Invega Hafyera -Osmotic release oral system (OROS) enables once daily dosing -do NOT break or crush AVEs: -*Increased prolactin: sexual dysfunction, galactorrhea, irregular/missed periods -EPS, especially at higher doses* -Tachycardia, QT prolongation -*Metabolic syndrome (increased weight, BG, lipids)* -Somnolence -Invega can have ghost tablet (empty shell) in stool
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Quetiapine: -Brand -MOA -ROA -Adminstration considerations -AVEs
Brand: Seroquel MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO *Administration considerations: take XR at night WITHOUT food or with light meal -IR can take w/ or w/o food* *AVEs: somnolence, metabolic syndrome (increased weight, BG, lipids), orthostasis, possible occular effects (cataracts) -LOW EPS risk (often used for psychosis in PD)*
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Risperidone: -Brand -MOA -ROA -AVEs
Brand: *Risperdal* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: *PO, IM, SQ* AVEs: -*Increased prolactin: sexual dysfunction, galactorrhea, irregular/missed periods -ESP, especially at higher doses* -Tachycardia, QT prolongation -*Metabolic syndrome (increased weight, BG, and lipids)* -Somnolence
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Ziprasidone: -Brand -MOA -ROA -Administration considerations -AVEs -CI
Brand: *Geodon* MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO, IM *Administration considerations: PO --> CF* AVEs: somnolence, EPS, dizziness, nausea CI: *QT prolongation (do NOT use w/ QT risk)*
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Asenapine: -Brand -MOA -ROA -Administration considerations -AVEs -CI
Brand: Saphris, Secuado MOA: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors ROA: PO, patch Administration considerations: *no food/drink for 10 minutes after dose* AVEs: somnolence, *tongue numbness (SL),* EPS, QT prolongation CI: severe hepatic impairment
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Mischellaneous Antipsychotics: cariprazine, brexipiprazole, iloperidone, lumateperone -MOA
ALL: second generation antipsychotic (SGA) that blocks D2 and 5-HT2A receptors Unique MOAs: -D2 and 5-HT1a partial agonists: brexipiprazole, cariprazine -5-HT2a antagonist: brexipiprazole
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*Antipsychotics: treatment considerations* 1. How long is an adequate trial? 2. What drugs to avoid if/preferred options: -Cardiac risk/QT prolongation risk -History of movement disorder (ex. PD) -Overweight/metabolic risk 3. What are options for failure with 2 or more antipsychotics?
1. 6 weeks at least including adequate dose and adherence 2. AVOID if: -Cardiac risk/QT prolongation (especially w/ low K and Mg; D/C if QT >500msec): ziprasidone > haloperidol > thioridazine; chlorpromazine -Hx of movement disorder: FGAs, risperidone, paliperidone (at higher doses) --> quetiapine preferred -Overweight/metabolic risk: olanzapine, quetiapine --> lower risk: aripiprazole, ziprasidone, lurasidone, asenapine 3. clozapine (tablets: Clozaril, suspension: Versacloz)
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Antipsychotics: treatment considerations 1. List SGAs highest to lowest for metabolic AVes. 2. List SGAs with highest increased prolactin risk.
1. -Highest: clozapine, olanzapine, quetiapine -Moderate: risperidone, paliperidone -Lower risk: aripiprazole, ziprasidone, lurasidone, osenapine 2. Risperidone, paliperidone
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*What drug is approved for psychosis in Parkinson disease? What is its AVEs, warnings, and MOA?*
Pimavanseron (Nuplazid) -MOA: inverse agonist and antagonist at 5-HT2A receptors and lesser extent at 5-HT2C receptors (NO impact on DA receptors, thus does NOT worsen PD) -AVEs: peripheral edema, confusion -Warnings: NOT appropriate for dementia-related psychosis; QT prolongation (avoid in pts w/ risk factors or drugs that increase QT interval)
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*Antipsychotics: DDIs*
ALL: -Can prolong QT interval (high risk FGA: thioridazine, chlorpromazine; high risk SGAs: ziprasidone, haloperidol, droperidol): caution w/ other QT-prolonging drugs -BZDs: monitor respiratory depression and hypotension (do NOT use w/ olanzapine) -DA blocking drugs (ex. metoclopramide): EPS and TD risk further increased Smoking: can reduce plasma levels of olanzapine and clozapine (may need higher doses) Clozapine: avoid concurrent drugs that lower seizure threshold Risperidone, paliperdone: caution w/ CYP2D6 inhibitors (including fluoxetine and paroxetine) --> can increase prolactin and cause EPS
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Tardive Dyskinesia (TD): medications approved for TD TX -Drugs/Brands -MOA -Warnings -CIs -DDIs
Drugs: valbenazine (Ingrezza), deutetrabenazine (Austedo, Austedo XR) MOA: *reversibly inhibit vesicular monoamine transporter 2 (VMAT2) that regulates momamine uptake from cytoplasm to synpatic vesicle for storage and release* Warnings: *somnolence*, QT prolongation CI *(deutretrabenazine): hepatic impairment*, use with tetrabenazine or valbenazine, use with MAOI within 14 days DDIs: -Avoid use w/ MAOIs -Substrates of CYP3A4 and 2D6: dose reduction required w/ CYP3A4 inhibitors or 2D6 (paroxetine, fluoxetine) -Valbenazine: P-gp inhibitor that can increase digoxin concentrations
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Neuroleptic Maligant Syndrome (NMS): -Define -S/Sx -TX
NMS: rare, but *highly lethal condition* where usually starting within 2 weeks or immediately following high dose increase of dopamine antagonist causing intese muscle contractions that can lead to renal injury due to rhabdomylosis, suffocation, and death S/Sx: -*Hyperthermia (high fever, profuse sweating), extreme muscle rigidity (called "lead pipe" rigidity)* that can lead to respiratory failure, mental status changes, tachycardia, tachypnea, blood pressure changes -Increased creatinine phosphokinase -Increased WBCs TX: -*STOP ANTIPSYCHOTIC* -Supportive care: cardiorespiratory and hemodynamic support, manage electrolytes -Control pt's temperature: cooling bed, antipyretics, cooled IV fluids -Relax muscles: BZDs, *dantrolene* (Ryanodex, Dantrium, Revonto) or potentially a dopamine agonist (bromocriptine) -After resolution, consider different antipsychotic
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Bipolar Disorder (BP): -Define -S/Sx -DSM-5
BP: fluctuations in mood from depression (extremely sad or hopeless states) to abnormally elevated, overexcited, or irritable moods (mania or hypomania - milder form of mania) for at least a week in duration (or any duration if hospitalization needed); some states can be mixed S/Sx: -Inflated self-esteem; high-risk, pleasurable activities (ex. shopping sprees, sexual indiscretions, gambling) -More talkative than normal -Jumping from topic to topic, easily distracted -Increased in goal-directed activity -Needs less sleep DSM-5: exhibits 3 or more symptoms (if mood is only irritable, exhibits 4 or more)
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Bipolar Disorder (BP): -Classifications -What is cyclothymia?
Classifications: -Bipolar I: at least one episode of *mania* and usually bouts of intense depression (depressive episodes NOT required) --> *mania associated with significant impairment in social/work functioning, psychosis/delusions, or requires hospitalization* -Bipolar II: at least one episode of *hypomania* (lasting 4 or more consecutive days) and at least one depressive episode (leasting 2 weeks or more) --> *hypomania does NOT affect social/work functioning, does NOT cause psychosis, and does NOT require hospitalization* Cyclothymia: related disorder consisting of periods of hypomanic and depressive symptoms w/o meeting defined criteria for major depressive, manic, or hypomanic episode
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*Bipolar Disorder (BP): General TX*
Goal is to stabilize moods without inducing a depressive or manic state -Mood stabilizers: lithium, antiepileptic drugs (valproate, lamotrigine, carbamazepine) -Antipsychotics: NOT traditional mood stabilizers, but can stabilize mood when mania occurs w/ psychosis; SGAs preferred due to less EPS (options: aripiprazole, olanzapine, quetipaine, risperidone, ziprasidone, lurasidone, olanzapine/fluoxetine) -Antidepressants: can incude or exacerbate manic episode as MONOTHERAPY --> use in combination with mood stabilizer
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*Bipolar Disorder (BP): Acute TX*
Manic episode: first line = antipsychotic (olanzarpine, risperidone), lithium, or valproate (severe: antipsychotic + lithium or valproate) Depressive episode: first line = antipsychotic (quetiapine, lurasidone); alternatives or add ons: lithium, valproate, or lamotrigine (lamotrigine: longer titration, not helpful in acute mania)
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*Bipolar Disorder (BP): TX considerations in pregnancy*
Preferred safer options: lamotrigine most favorable sfaety profile; SGAs safer than valproate, carbamazepine, or lithium -Valproate: increases risk of fetal anomalies including long-term adverse cognitive effects (decreased IQ), neural tube defects, and fetal valproate syndrome (avoid especially in first trimester, worst of all BP drugs) -Carbamazepine: can cause fetal carbamazepine syndrome resulting in facial abnormalities and incomplete organ development, including cardiac effects (especially avoid in first trimester) -Lithium: can increase congenital cardiac malformations
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Lithium: -Brand -MOA -ROA -TX -Therapeutic range
Brand: Lithobid MOA: proprosed mechanism is influencing of reputake of 5-HT and/or NE or by moderating gluatamate levels in brain -Glutatamte is primary excitatory neutransmitter that could cause mania ROA: PO TX: Bipolar disorder -Off-label: refractory depression as augment Therapeutic range: 0.6-1.2 mEq/L (trough level); acute mania may require 1.5mEq/L initially -NTI drug
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Lithium: -AVEs within therapeutic range -AVEs within toxic ranges -Warnings -BBW -CIs -Monitoring
AVEs within therapeutic range: *GI upset (N/D), cognitive effects, cogwheel rigidity, fine hand tremor, thirst, polyuria/polydipsia, weight gain, hypothyroidism*, hypercalcemia, cardiac abnormalities, edema, anorexia, worsening psoriasis, blue-gray skin pigmentation, impotence *AVES within toxic ranges:* ->1.5mEq/L: ataxia (lack of muscle coordination/balance), coarse hand tremor, vomiting, persistent diarrhea, confusion, sedation ->2.5mEq/L: CNS depression, arrhythmias, seizure, coma Warnings: *renal impairment*, hyponatremia, dehydration (increased lithium toxicity), *serotonin syndrome* BBW: *serum lithium levels should be monitored to avoid toxicity* CI: *avoid in pregnancy* (cardiac malformations in first trimester), avoid in breastfeeding Monitoring: *serum levels, renal function, thyroid function (TSH, T4)*, electrolytes (Ca, Phos, Na). ECG (pt >40yo) -Lithium is 100% renally cleared
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*Lithium: DDIs*
Lithium levels increase with: -*Reduced salt intake, sodium loss (ex. ACEIs, ARBs, thaizide diuretics) -NSAIDs: ASA and sulindac are safer options* Lithium levels decrease with: *increased salt intake*, caffeine, theophylline Risk of 5-HT syndrome: * SSRIs, SNRIs, triptans, linezolid, etc.* Increased risk of neurotoxicity (ataxia, tremors, nausea): verapamil, diltiazem, phenytoin, carbamazepine ***Lithium changes with Na intake because the kidneys cannot tell the difference between Na and Li. Therefore, increasing Na, the kidney will try to clear Na and also Li
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*Lithium: main counseling points*
1. Take with food or at end of meal to reduce nausea 2. Maintain consistent salt intake 3. Maintain adequate hydration with NON-caffeinate beverages 4. Notify healthcare provider immediately for worsening nausea or diarrhea, slurred speech, shakiness, or confusion 5. Can cause impaired alterness: caution when driving or during tasks that require alertness
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Attention Deficit Hyperactivity Disorder (ADHD): -Pathophysiology -DSM-5
Pathophysiology: NOT well understood --> imbalance of catecholamine metabolism with subsequent decreased DA DSM-5: -Primary symptoms: inattention, hyperactivity, and impulsivity -Inattention or hyperactivity/impulsivity: >/=6 symptoms of intattention for children up to age 16 (>/= 5 symptoms for 17 yo and older) that are present for at *least 6 months and inappropriate for developmental level* -Several inattentive or hyperactive-impulsive symptoms present *before age 12* -Symptoms must have been *present in 2 or more settings* (ex. home, work, school, friends) -Symptoms intefere w/ functioning and NOT caused by another disorder
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Attention Deficit Hyperactivity Disorder (ADHD): -General TX -Supplements in ADHD
*General TX:* -Age 4-5yo: first line is parent training in behavior management and/or behavior classroom intervention -6 yo and older: behavioral interventions + medications (first line = stimulants) -Non-stimulants in ADHD: atomoxetine, viloxazine --> after trial of 2-3 stimulants (or first line in concern of abuse or diversion) -Add-on medications: guanfacine ER (Intuniv), clonidine ER (Kapvay) -To help sleep at night: clonidine IR, diphenhydramine, melatonin Supplements: data for efficacy LIMITED and not routinely recommended (fish oil was studied with limited evidence, some limited data on combined omega-3 and omega-6 supplementation) -*Melatonin may be helpful for sleep onset insomnia in pts taking stimulants*
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*Stimulants: what are patient friendly options for children and others that cannot swallow capsules or tablets?*
When putting capsule contents in food, use a small amount of food (do NOT warm the food). Eat the food right away, without chewing. -If beads are chewed, drug can become IR Capsules that can be opened: -Many long-acting capsules (ex. Adderall XR, Ritalin LA, Aptension XR, Folacin XR): can sprinkle on applesauce -Vyvanse capsules: can be mixed in water, orange juice, or yogurt (unique because most stimulant levels decreased with acid - aka orange juice) --> take right away, do NOT let sit Other options: -Chewable tablets: Vyvanse, QuilliChew ER (only ER that can be crushed) -ODTs -Patches: Daytrana -Suspensions
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*Stimulants:* 1. All stimulants are control schedule ___ that must be dispensed with _________. 2. What is the BBW for all stimulants? 3. What is the CI for all stimulants? 4. What is general administration for all stimulants?
1. CII; medguide 2. High potential for abuse and dependence -Can contribute to development of substance use disorder -Misuse can lead to overdose and death -Symptoms of misuse: dilated pupils, increased HR/BP, sweating, tremor, anxiety 3. Use with MAOI within 14 days --> hypertensive crisis 4. Administration: Qam, titrated up Q7 days PRN -Do NOT need to be tapered off when used as directed (aka NOT abused)
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*What are warnings for all stimulants?*
-Stimulant abuse and misuse can lead to drug diversion -Increased DA and NE can increase HR and BP, causing serious CV events w/ or w/o pre-existing disease -Other vascular problems: priapism, Raynaud's disease: may require dose reduction or D/C -New-onset psychosis or mania or exacerabtion of pre-existing psychosis -Loss of appetite very common: can decrease child's growth trajectory -Risk of serotonin syndrome w/ other serotonergic drugs -Some can lower seizure threshold -Visual disturbances: difficulty w/ accomodation and blurry vision
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*Methylphenidate ROAs: for each brand, explain what ROA and any administration considerations* 1. Ritalin 2. Ritalin LA 3. Concerta
Ritalin (IR tablet): start at 5mg BID, taking 30 minutes before breakfast and lunch Ritalin LA (ER capsule): take Qam Concerta (ER tablet w/ OROS delivery): start at 18-36mg Qam -OROS delivery: outer coat dissolves fast for immediate action, but rest released slowly and harder to crush which decreases drug abuse potential -Can see ghost tablet in stool
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*Methylphenidate ROAs: for each brand, explain what ROA and any administration considerations* 1. Jornay PM 2. Daytrana 3. QuilliChew ER
Jornay PM (ER capsule): take Qpm -Outer coating delays intial drug release 10 hours to allow for evening dosing -Inner coating controls slow release of drug during the day Daytrana (transdermal patch): apply to hip (alternating) Qam -Apply 2 hours before desired effect (or as soon as child awakens to deliver prior to school) -Remove after 9 hours -Discard used patches by flushing down the toilet QuilliChew ER (chewable tablet): Qam -Contain phenylalanine (avoid with PKU)
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Methylphenidate: -Brands -MOA -AVEs -Warnings -Monitoring
Brands: Riltain, Ritalin LA, Jornay PM, QuilliChew ER, Concerta, Daytrana, Relexxii MOA: stimulant that blocks reuptake of NE and DA AVEs: *insomnia, decreased appetite/weight loss, HA, irritability*, N/V, blurry vision, dry mouth Warnings: -Daytrana (transdermal patch): loss of skin pigmentation at appllication site and areas distant from site (can resemble vitiligo); allergic contact dermatitis wth local rxns (edema, papules) -Concerta, Relexxii (both OROS delivery): do NOT use w/ GI narrowing conditions (ex. motility issues, small bowel disease) Monitoring: -*Consider ECG prior -Monitor BP and HR*, cardiac symptoms, CNS effects, and abuse potential -*Children: monitor height and weight*
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Stimulants: 1. _____________(generic and brand) is the active isomer of methylphenidate. How would you convert dosing? 2. _____________ is the prodrug to dexmethylphenidate. It comes combined with dexmethylphenidate under the brand __________. 3. _____________(generic and brand) is a prodrug of L-lysine bonded to dextroamphetamine and hydrolyzed in blood to active dextroamphetamine. It has low drug abuse potential since if its injected or snorted, the fast effect is muted. 4. The brand name for methamphetamine is _________.
1. *Dexmethylphenidate (Folacin, Folacin XR)* 2. Serdexmethylphenidate; Azstarys 3. *Lisdexamphetamine (Vyvanse)* 4. Desoxyn
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Amphetamine, Dextroamphetamine, and Combinations: -Brands for dextroamphetamine/amphetamine, amphetamine, and dextroamphetamine -MOA -IR prdocuts are approved for children >/= ____ yo except ________ brand -AAP guidelines do NOT recomend dextroamphetamine in children ____
Brands: -*Combination = Adderall, Adderall XR*, Mydavis -Amphetamine = Adzenys XR-ODT, Dyanavel XR, Evekeo, Evekeo ODT -Dextroamphetamine = Dexedrine, ProCentra, Zenzedi, Xelstrym MOA: stimulant that blocks reuptake of NE and DA IR products: children 3 yo or older EXCEPT Evekeo ODT -Dextroamphetamine: NOT recommended in children 5 yo or younger Administration considerations: -ER formulations: CANNOT be substituted for other products on a mg-per-mg basis --> follow dosing schedule per manufacturer -Dyanavel XR: shake suspension prior to use -do NOT take w/ acidic foods such as juice or vitamin C (decrease absorption)
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Selective Norephinephrine Reuptake Inhibitors: -Drugs/Brands -ROA -Administration considerations -TX
Drugs: *atomoxetine (Strattera)*, viloxazine (Qelbree) ROA: PO Administration Considerations: -*Atomoxetine: do NOT open capsules (ocular irritant)* -Viloxazine: capsule can be opened and contents sprinkled on 1 tsp of pudding or applesauce (swallow without chewing) TX: ADHD (non-stimulants)
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Selective Norephinephrine Reuptake Inhibitors: -AVes -Warnings -CI -BBW -Monitoring -DDIs
AVEs: *decreased appetite, insomnia, somnolence, dry mouth, increased BP/HR*, HA, nausea, abdominal pain Warnings: -CV events, psychosis, mania: assess at baseline and PRN -Atomoxetine: aggressive behavior, hepatotoxicity, priapism, urinary hesistancy/retention, growth delays CI: *MAOI use within past 14 days* -Atomoxetine: glaucoma, pheochromocytoma, severe CVDs -Viloxazine: concurrent use of CYP1A2 substrates (or substrates w/ NTI) BBW: *risk of suicidial ideation* Monitoring: BP, HR, ECG, mood, weight DDIs: -Volxazine: strong CYPA1A2 inhibitor and weak CYP2D6/3A4 inhibitor -Atomoxetine: CYP2D6 substrate
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Centrally-Acting Alpha-2 Adrenergic Receptor Agonists for ADHD: -Drugs/Brands -ROA/Dosing frequencies/Adminsitration Considerations -AVEs -Warnings -Monitoring -DDIs
Drugs: *clonidine ER (Kapvay), guanfacine ER (Intuniv)* ROA: PO -*Take QHS -Must be tapered off* due to increased risk of rebound HTN (decreased dose Q3-7 days; clonidine:
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*Drugs that can cause anxiety*
Pscyhiatric Medications: antipsychotics (ex. aripiprazole, haloperidol), bupropion, stimulants Others: 1. Albuterol: if used too frequently or incorrectly 2. Caffeine, in high doses 3. Decongestants (ex. pseudophedrine) 4. Illict drugs 5. Levothyroxine, if therapeutic overdose occurs 6. Steroids 7. Theophylline - converted to caffeine
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Anxiety Disorders: 1. What are some of the common types of anxiety disorders? What are disorders with symptoms of anxiety? 2. Non-pharmacological TX 3. What are natural products that may be used?
1. -Common: generalized anxiety disorder (GAD), panic disoder (PD), social anxiety disorder (SAD) -Disorders w/ anxiety: obsessive compulsive disorder (OCD), post-traumatic stress disorder (PTSD) 2. Non-pharmacological TX: -*Cognitive behavioral therapy (CBT): trained clinicians help explore patterns of thinking that lead to problem-solving, relaxation techniques, and worry exposure* -Treat comorbid conditions (ex. hyperthyroidism) -Lifestyle changes: increased physical activity, community involvement, meditation
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*What are natural products that may be used for anxiety?*
Natural Products: generally limited by safety issues -Kava: relaxant, but severe liver damage (NOT recommended) -Valerian: for anxiety/sleep, but may be contaminated w/ liver toxins -Passionflower: appears to be safe and listed as possibly effective via NatMed -5-HTP, L-typtophan: eosinophilia mylagia syndrome -St John's Wort: strong CYP3A4 inducer, photosensitivity, serotonin snydrome
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*Anxiety: general TX*
First line: SSRIs and SNRIs -FDA approved: escitalopram, fluoxetine, paroxetine, stetraline, duloxetine, venlafaxine -Start low and titrate slowly to avoid jitteriness or exacerbation of anxiety -Takes at least 4 weeks to see benefit Second line: -Buspirone: takes 2-3 weeks to see benefit, can use in combo w/ antidepressants (more favorable in elderly than BZDs) -TCAs: anticholinergic AVEs, NOT FDA approved -Hydroxyzine: sedating antihistamine, used only as short term, does NOT treat underlying condition -Pregabalin, Gabapentin: for anxiety (NOT FDA approved) and neuropathic pain Stage Fright: Propranolol -NOT FDA approved, but can reduce symptoms of stage fright or performance anxiety (ex. tremors, tachycardia) -Can cause CNS AVEs (dizziness, confusion) -Dose 10-40mg one hour prior to event Short term only: benzodiazepines (BZDs)
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Buspirone: -Brand -MOA -ROA -Administration considerations -TX and considerations
Brand: BuSpar MOA: not fully known, but may have affinity for 5-HT1A and 5-HT2 receptors ROA: PO Administration: tablets scored to easily break into half or two thirds TX: anxiety *-NO potential for abuse, tolerance, or psychological dependence -Takes 2-4 weeks for optimal effect -When switching from BZD to buspirone, BZD should be tapered slowly*
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Buspirone: -AVEs -Warnings -CI -DDIs
AVEs: dizziness, drowsiness, HA, lightheadedness, nausea, excitement Warnings: *risk of serotonin syndrome* CI: -*MAOI use within 14 days or with linezolid or IV methylene blue* -Avoid in severe kidney or liver impairment DDIs: *CYP3A4 substrate* -Avoid grapefruit, grapefruit juice (may increase levels of buspirone) -Decrease dose w/ strong inhibitors or increase w/ strong inducers -Avoid alcohol: CNS depression -Avoid opioids: profound sedation, respiratory depression, coma, and death
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Benzodiazepines (BZDs): -Drugs/Brands -MOA -ROA -Considerations for TX in anxiety -Other uses
Drugs: *alprazolam (Xanax), clonazepam (Klonopin), diazepam (Valium), lorezapam (Ativan)*, chlordiazepoxide, clorazepate (Tranxene), oxazepam MOA: *enhance gamma-aminobutyric acid (GABA), an inhibitory neutrotransmitter* that causes CNS depression resulting in anxiolytic, anticonvulsant, sedative, and/or muscle relaxant properties ROA: PO, injection, intranasal *Considerations in Anxiety TX:* -Provide fast relief of symptoms, but do NOT treat underlying cause -Useful in short-term of acute anxiety preventing restful sleep and disrupting life -Taken long-term: risk of developing tolerance (recommended to use for only 1-2 weeks then D/C and if used longer, taper off slowly to prevent withdrawl symptoms) -Consider BZD w/ longer T1/2 to reduce risk of abuse (clonazepam, lorazepam, diazepam) Others Uses: -Sleep: lorazepam, temazepam -Seizures: diazepam rectal gel (Diastat AcuDial)
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Benzodiazepines (BZDs): -AVEs -Warnings -CI -BBW -DDIs
AVEs: *somnolence, dizziness, ataxia*, weakness, lightheadedness Warnings: -*CNS depression -Anterograde amnesia -Potential for abuse* -*Safety risks in 65 yo and older: imapired cognition, delirium, falls/fractures* -Extravasation w/ IV use -Paradoxical rxns -Severe renal or liver impairment -*Pregnancy: crossess placenta and can cause birth defects or neonatal withdrawl syndrome* CI: -Acute narrow-angle galucoma -Sleep apnea, severe respiratory insufficiency -*Severe liver disease (clonazepam, diazepam)* -Myasthenia gravis (diazepam) -NOT for infants <6 months (diazepam) or premature infants (lorazepam) *BBW:* -Use w/ opioids: sedation, respiratory depression, coma, death -Risk for abuse, misuse, and addition leading to overdose and death (less in clonezpam since longer T1/2) -Continued use leads to physical dependence and abrupt D/C can cause withdrawl symptoms (taper off slowly when using >10 days) DDIs: -*Additive CNS depression (most pain meds, alcohol, skeletal muscle relaxants, etc)* -Diazepam, clonazepam, chlordiazepoxide, and clorazepate: caution w/ CYP3A4 inhibitors -*Alprazolam: CI with strong CYP3A4 inhibitors* -Valproate increases levels of lorazepam
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*BZDs: Specifics* 1. Which BZDs are safer in elderly patients? 2. Which BZDs are often used for alcohol withdrawl syndrome? 3. _________ is a lipophilic and fast BZD with high drug abuse potential despite its long T1/2.
1. LOT drugs: Lorazepam, Oxazepam, Temazepam 2. Lorazepam, diazepam, chlordiazepoxide 3. Diazepam
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*BZDs: Specifics*: 1. ________ is a fast onset BZD often abused from its quick action. 2. _________ is a BZD used more in acute care. 3. _________ is the reversal for BZDs.
1. Alprazolam 2. Midazolam (Versed) 3. Flumazenil
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Chronic Insomnia: -Define -Non-pharmacological TX -Natural Products
Insomnia: symptoms at least three times per week for at least 3 months despite adequate opportunity to sleep: -Difficulty falling asleep (sleep initiation or sleep latency) -Reduced sleep duration -Poor sleep quality (ex. awakenings after sleep onset) Non-pharmacological TX: -Cognitive behavioral threapy (CBT-I): PREFERRED -Address underlying medical conditions (ex. pain, SOB from HF, anxiety, BP, depression, alcohol use disorder) -D/C medications that cause insomnia Natural Products: -Melatonin 1-5mg Qpm: substrate of CYP1A2 and prolonged effects can occur w/ 1A2 inhibitors (ex. ciprofloxacin, fluvoxamine); can help w/ jet lag (adjusting to different sleep time) -Valerian, Kava: NOT recommended due to hepatotoxicity -Chamomile tea: can help pt to feel calmer
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*Drugs that cause insomnia*
Psychiatric/Neurologic Medications: acetylcholinesterase inhibitors, aripiprazole, atomoxetine, buproprion, stimulants, fluoxetine (if taken late in day) Others: 1. Alcohol - can help induce sleep, BUT reduces QUALITY of sleep 2. Caffeine 3. Decongestants (ex. pseudophedrine) 4. Diuretics (from nocturia) 5. Nicotine (including NRT) 6. INSTIs 7. Steroids 8. Varenicline
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*Chronic Insomnia: General TX*
First line: NON-PHARM -Keep bedroom dark, comfortable, and quiet -Keep regular sleep schedule -Avoid daytime naps, even after poor night of sleep or limit to 30 minutes -Reserve bedroom for sleep and other appropriate activities (NO TV or other stimulants) -Turn face of clock aside to minimize anxiety -If unable to sleep, get up and do something to take mind off sleeping -Extablishe pre-bedtime ritual to condition body (ex. soft music, mild stretching, yoga, pleasurable reading) -Avoid exercising right before bed -Do NOT eat heavy meals before bedtime -Do NOT consume caffeine in afternoon Second Line: -Trouble falling asleep: Z drugs (eszopiclone, zolpidem, zaleplon), Ramelteon -Trouble staying asleep: eszopiclone, zolpidem, doxepin, suvorexant -BOTH: eszopiclone, zolpidem Short-term: benzodiazepines, OTC first-generation antihistamines
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Z Drugs: -Drugs/Brands -MOA -ROA
Drugs: *eszopiclone (Lunesta), zolpidem (Ambien, Edluar)*, zaleplon (Sonata) MOA: non-BZD hypnotics that act *selectively at the BZD receptor to increase GABA*, an inhibitor neurotransmitter to induce CNS depression ROA: PO -Edluar: SL tablet
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Z Drugs: -AVEs -Warnings -CI -BBW -DDIs
AVEs: *somnolence, dizziness, ataxia, HA*, lightheadedness, "pins and needles" feeling on skin -Eszopiclone: dysgeusia (altereted sense of taste) Warnings: -*CNS depression and next-day impairment with <7-8 hours of sleep* (especially at high doses or coadministration w/ other CNS depressants including alcohol) -Abnormal thinking, behavioral changes, worsening depression, respiratory depression -*Potential for abuse and dependence* (can cause withdrawl if used longer than 2 weeks) CI: *hx of complex sleep disorder* BBW: *complex sleep behavior (ex. sleep-walking, sleep-driving, engaging in other activities while NOT fully awake)* DDIs: -Caution w/ potent CYP3A4 inhibiotrs -Additive CNS depression -do NOT take w/ fatty foods, a heavy metal, or alcohol
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Orexin Receptor Antagonists: -Drugs/Brands -MOA -ROA -Administration considerations -AVEs -Warnings -CI -DDIs
Drugs: daridorexant (Quviviq), lemborexant (DayVigo), suvorexant (Belsomra) MOA: *orexin receptor antagonist that inhibits orexin neuropeptide signaling system that promotes wakefulness* ROA: PO Administration: -do NOT take if <7 hours of sleep remaining -Onset of action delayed if taken with meal AVEs: *somnolence*, HA, dizziness, abnormal dreams Warnings: worsening depression/SI, sleep paralysis, hallucinations, cataplexy-like symptoms (sudden loss of muscle tone), complex sleep behavior, daytime impairment (risk when use w/ other CNS depressants) -NOT recommended in severe hepatic impairment CI: *narcolepsy* DDIs: caution with CYP3A4 inhibitors
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Melatonin Receptor Antagonists: -Drugs/Brand -MOA -ROA -Administration considerations -TX -AVEs -Warnings -DDIs
Drugs: ramelteon (Rozerem), tasimelteon (Hetlioz) MOA: *agonists at MT1 and MT2 melatonin receptors that promote sleepiness and regulate circadian rhythm to coordinate sleep-wake cycle* ROA: PO Administration: do NOT take with fatty food -*NOT a controlled substance among the other sleep drugs* TX *(tasimelteon): specifically for NON-24 hour sleep-wake disorder (do NOT have normal cycle - ex. blind pt)* AVEs: *somnolence*, dizziness Warnings: -Ramelteon: complex sleep behavior DDIs: do NOT take w/ fluvoxamine (strong CYP1A2 inhibitor that increases concentrations of this drug class)
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Doxepin: -Brand -MOA -ROA -Considerations for insomnia usage
Brand: Silenor MOA: tricyclic antidepressant that inhibits NE and 5-HT reuptake along with inhibition of ACh and histamine ROA: PO Considerations for sleep: -For insomnia, use ER version to stay asleep -Warning of complex sleep disorder -AVEs: seizures, somnolence, anticholinergic effects -Increase in SI in young pts
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First-generation antihistamines for sleep: -Drugs/Brands -MOA -AVes -Considerations
Drugs: *diphenhydramine (Benadryl), doxylamine (Unisom, SleepTabs)* MOA: *inhibits H1 receptor* AVEs: -*Sedation: tolerance to sedative effects that can develop after 10 days of usage* -Confusion, seizures (high dose, older adults) -Paradoxical excitation in young children (do NOT use in children <12 yo) -*Peripheral anticholinergic AVes: dry mouth, urinary retnetion, dry eyes/blurry vision, constipation* Considerations: -*Avoid use in BPH (can worsen symptoms) and glaucoma (can elevate IOP)* -Avoid in older adults (Beers Criteria): confusion, dizziness, risk of falls, hypotension -Risk of mix-up: some OTX Unisom branded-products contain diphenhydramine
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Narcolepsy: -Define -General TX -Drug considerations
Narcolepsy: excessive daytime sleepiness with cataplexy (sudden loss of muscle tone) and sleep paralysis which can last from a few seconds to several minutes General TX: -Stimulants: armodafinil, modafinil -Sodium oxybate (Xyrem) -Others: pitolisant (histamine-3 receptor antagonist/inverse agonist), solriamfetol (DA and NE reuptake inhibitor) Stimulants (armodafinil, modafinil): -AVEs: HA, insomnia, anxiety, nause -Warnings: caution in pre-existing cardiac, hepatic, renal, or psychiatric conditions; severe rash that can be life-threatening (ex. SJS) -C-IV Sodium oxybate (Xyrem): -MOA: active moiety of oxybate salts in sedative GHB (derived from GABA) -AVEs: dizziness, confusion, nausea -Warnings: depression, suicide, psychosis, anxiety, sleepwalking -*CI: use w/ sedative-hypnotics, alcohol -BBW: STRONG CNS DEPRESSANTS --> respiratory depression, coma, and death risk; drug can be used illicitly and sometime to facilitate sexual assault ("date rape" drug --> REMS PROGRAM) -C-III*
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Restless Leg Syndrome (RLS): -Define -Pathophysiology -General TX
RLS: urge to move lower legs sometimes described as a "creeping sensation" that is worse at night and relieved w/ movement Pathophysiology: thought to be from dysfunction of dopamine *General TX:* -Primarily dopamine agonists (pramipexole, ropinirole --> though taken for PD, taken IR 1-3 hours before bed for RLS; ritigotine: patch applied daily) -Gabapentin enacarbil (Horizant): for RLS or postherepetic neuralgia --> taken at 5pm daily (XR version of gabapentin); take w/ food and swallow whole