ADHD Patho
Reduced activity in prefrontal and anterior cingulate cortex -> stimulants
Default mode network over-activity -> methylphenidate
ADHD symptoms
Inattention
Hyperactivity
Impulsivity
ADHD diagnosis
DSM 5 inattention/hyperactivity (impulsivity)
children and adolescents (<17)
- 6 or more symptoms for at least 6 months
adolescents and adults (17 and up)
- at least 5 symptoms required
ADHD presentation (infancy)
ADHD presentation preschool (3-5)
ADHD presentation school age (6-11)
ADHD presentation adolescents (12-18)
ADHD presentation adults (>18)
Non-pharm (preschool/school age)
Non-pharm (adolescent)
Non-pharm Adolescent/Adult
Use of Iron and Zinc Supplementation
enhances therapeutic benefit of stimulants
(only in youth with known deficiencies)
First line therapy for ADHD
Second line ADHD treatment
Atomoxetine
Viloxazine
Guanfacine ER
Clonidine ER
Bupropion
ADHD third line treatment
Predominant Tourette’s + ADHD treatment
1st:
- dopamine antagonist
- alpha-2 agonist (guanfacine / clonidine)
(Some response)
- add stimulant, atomoxetine, or alpha-2 agonist
(Inadequate response)
- alternative dopamine antagonist or alpha-2 agonist
Predominant bipolar (and/or severe aggression) + ADHD treatment
TREAT BIPOLAR FIRST
1st: atypical antipsychotic, lithium, or anticonvulsant
(Some Response)
- add stimulant
(Inadequate response)
- alternative or additional mood stabilizer
Predominant depression/anxiety + ADHD treatment
1st: antidepressant
(Some response)
- add stimulant
(Inadequate response)
- alternative antidepressant
Stimulant MOA
Methylphenidate and Amphetamines
Which is more potent: Methylphenidate or Amphetamines?
Amphetamines
Stimulants:
IR Formulation Pearls
Advantages:
- lower cost
- less insomnia
- fewer growth related ADE
Stimulants:
Long acting/ ER formulation pearls
Advantages
- medication adherence
Stimulants: ADE
Psychiatric
- psychosis/mania
- aggression
- severe anxiety/ anxiety attacks
Cardiac
- increased HR and BP
- increased risk for ED visits
- serious but generally negligible in patients without preexisting CVD conditions
Growth:
- 1cm/yr decrease over 1-3 yrs
- 3kg weight deficit in 1st year
- steadies out over time