66. ADHD Flashcards

1
Q

ADHD is the most common neurodevelopmental disorder in ____, occurring almost twice as often in boys compared to girls

A

children

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2
Q

ADHD is characterized by symptoms of __

A

inattention, hyperactivity, and impulsivity

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3
Q

The primary treatment for ADHD is ___ medications because they raise ___ levels

A

stimulant meds (e.g. methylphenidate, amphetamine)
raise dopamine and NE levels

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4
Q

ADHD medications are considered first line in pts ≥ ___ yo and should be used with behavioral interventions when available

A

≥6yo

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5
Q

DSM-5 Dx criteria for ADHD

A

Inattention:
≥ 6 symptoms of inattention for children up to age 16 (≥5 symptoms for ages 17 or older)
Symptoms must have been present for at least 6 months and are inappropriate for the developmental level

Symptoms:
Fails to pay attention, has trouble holding attention, dose not pay attention when someone is talking, does not follow through on instructions, fails to finish schoolwork, has difficulty organizing tasks, avoids or dislikes tasks which require mental effort, loses things, is easily distracted, is forgetful

Hyperactive + Impulsivity:
≥6 symptoms of hyperactive-impulsivity for children up to age 16 (≥5 symptoms for ages 7 and older)
Symptoms must have been present for at least 6 months and are inappropriate for the developmental level

Symptoms:
Often fidgets or squirms, leaves seat unexpectedly, runs about when no appropriate, unable to play quietly, is “on the go” as if “driven by a motor”, talks excessively, blurts out answers, has trouble waiting his/her turn, interrupts or intrudes on others

Following conditions must be met:
- several inattentive or hyperactive-impulsive symptoms were present before age 12
- symptoms must have been present in 2 or more settings (e.g. at home, school, work, with friends, relatives, or babysitters)
- symptoms interfere with functioning and are not caused by another disorder

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6
Q

Natural products used for ADHD

A

Fish oil
Melatonin used to help with sleep onset in individuals taking stimulants

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7
Q

Why are long-acting formulations of stimulants preferred for children?

A

To maintain more steady symptom control and avoid need for dose during day at school

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8
Q

___, a non-stimulant med, can be tried when stimulants do not work well enough (After trials of 2-3 meds) for ADHD. Can be used first line when prescribers are concerns about possibility of abuse by pt or family.

A

Atomoxetine (Strattera)

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9
Q

____ and ___ are non-stimulant meds that can be used alone or in combo with stimulants for ADHD

A

Guanfacine ER (Intuniv) and clonidine ER (Kapvay)

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10
Q

Patient-friendly formulations for stimulants used in ADHD

A

Capsule
- some can be sprinkled on a small amount of applesauce (e.g. Adderall XR, Ritalin LA)
- Vyvanse capsules can be mixed in water, OJ, or yogurt
Chewable tab (e.g. Vyvanse)
ODT
Patch (e.g. Dayrana)
Suspension

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11
Q

Examples of first-line stimulants used for ADHD

A

Taken in AM
Methylphenidate (e.g. Concerta, Daytrana, Ritalin)
Lisdexamfetamine (Vyvanse)
Dextroamphetamine/Amphetamine (Adderall, Adderall XR)

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12
Q

Examples of meds used to help sleep at night in ADHD pts

A

clonidine IR (Catapres)
Diphenhydramine (OTC, 25-50mg)
Melatonin (OTC, 2-5mg)

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13
Q

All stimulants are ___ scheduled meds and must be dispensed with MedGuide

A

C-II

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14
Q

Do not use stimulants within ___ of MAOi d/t risk of ____ when used together

A

14 days
hypertensive crisis

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15
Q

Warnings with stimulant use

A

Increase HR and BP (d/t increased levels of DA and NE), can cause serious CV events in children and adults
Other vascular problems (e.g. ppriapism, Raynaud’s disease)
New-onset psychosis or mania, or an exacerbation of preexisting psychosis (e.g. mixed/manic episode in bipolar disorder)
Lower seizure threshold
Loss of appetite - can decrease child’s growth trajectory
Serotonin syndrome risk

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16
Q

Stimulants MOA

A

block reuptake of NE and DA

17
Q

How often are stimulant doses titrated?

A

every 7 days as needed

18
Q

Do simulants need to be tapered off?

A

No (when used as directed (i.e. not abused))

19
Q

Methylphenidate formulations and doses

A

IR tablet: Ritalin - start 5mg BID, 30 min before breakfast and lunch (Max 60mg/day)
ER tablet: Concerta - start 18-36mg QAM (max 72mg/day), OROS delivery
ER capsule: Ritalin LA, Jornay PM - Jornay PM taken at night
Transdermal patch: Dayrana - QAM

20
Q

Dexmethylphenidate (Focalin, Focalin XR) is the active isomer of ___

A

methylphenidate
To convert from methylphenidate to dexmethylphenidate use 1/2 of TDD of methylphenidate

21
Q

Side effects of methylphenidate

A

Insomnia, decreased appetite/weight loss, HA, irritability, N/V, blurry vision, dry mouth

22
Q

Monitoring for methylphenidate

A

Consider ECG prior to treatment; monitor BP and HR, cardiac symptoms, CNS effects, abuse potential and height/weight in children

23
Q

Concerta formulation notes

A

OROS delivery, outer coat dissolve fast for immediate action, rest released slowly
can see ghost tab in stool
harder to crush = decrease abuse potential

24
Q

Why is Jornay PM taken at night?

A

Outer coating delays initial drug release 10hrs to allow evening dosing, the rest releases slowly during day

25
Q

Daytrana (methylphenidate patch) application notes

A

Apply 2 hrs before desired effect
Remove after 9 hrs
Alternate hips daily

26
Q

Boxed warnings for Adderall (Dextroamphetamine/amphetamine)

A

Misuse can cause sudden death and serious CV events

27
Q

Vyvanse (lisdexamfetamine) is the prodrug of ____

A

dextroamphetamine

28
Q

What is unique about Vyvanse and abuse potential?

A

Low abuse potential; prodrug, if injected or snorted, fast effect (rush) is muted

29
Q

Which SNRI can be used as second-line for ADHD?

A

Atomoxetine (Strattera)

30
Q

Boxed warnings for atomoxetine (Strattera)

A

Suicidal ideation

31
Q

Contraindication for atomoxetine (Strattera)

A

MAOi use within 14 days, glaucoma, phenochromocytoma, severe CV disorders

32
Q

Side effects with atomoxetine (Strattera)

A

decreased appetite, insomnia, somnolence, dry mouth, HTN, tachycardia, HA, nausea, abd pain, ED/decreased libido

33
Q

atomoxetine (Strattera) capsules should NOT be opened. Why?

A

Ocular irritant

34
Q

Clonidine ER (Kapvay), Guanfacine ER (Intuniv) MOA

A

central alpha-2A adrenergic receptor agonists

35
Q

When is clonidine ER (Kapvay) taken?

A

QHS

36
Q

Warnings with Clonidine ER (Kapvay), Guanfacine ER (Intuniv)

A

dose-dependent CV effects (bradycardia, hypotension, orthostasis, syncope), sedation and drowsiness
Do NOT d/c abruptly (can cause rebound HTN)
guanfacine: skin rash (rare, d/c if occurs)

37
Q

Side effects with Clonidine ER (Kapvay), Guanfacine ER (Intuniv)

A

Dry mouth, somnolence, fatigue, dizziness, constipation, decraese HR, hypotension, HA, nausea, abd pain

38
Q

Which stimulant medications used in ADHD come as chewable tablets?

A

Vyvanse, QuilliChew ER, and methylphenidate IR