4.9 Pharmacotherapy of pediatric psychiatry Flashcards
How does the DSM5 define tourette’s disorder?
Tics may wax and wane in frequency, but have been present for >1 year
According to the DSM5, when does tourette’s disorder start?
Onset before age 18
How does the DSM5 define persistent (chronic) motor or vocal tic disorder?
- Single or multiple motor or vocal tics present, but not both
- Tics may wax and wane in frequency, but have been present for >1 year
Can persistent (chronic) motor or vocal tic disorder be attributable to substance use or another medical condition?
No
How does the DSM5 define provisional tic disorder?
Sxs as persistent (chronic) motor or vocal tic disorder, but present for <1 year
Pts w tic disorders also have what other conditions?
75% also have ADHD, 50% also have OCD
What is the rule of thirds for progression of tic disorders?
- 1/3 resolve, 1/3 improve, 1/3 stay the -same
- 10% have persistent sxs as adults
What is the 1st line pharmacologic tx of tics?
- Alpha 2 agonists: clonidine, guanfacine, ER guanfacine
- For tics of mild-moderate severity
- 30% reduction
What is the 2nd line pharmacologic tx of tics?
- Atypical antipsychotics: aripriprazole, risperidone
- 30-60% reduction
What is the 3rd line pharmacologic tx of tics?
- Typical antipsychotics: haloperidol, pimozide
- 80% reduction
Aripiprazole is approved for what age range?
FDA approved for 6-17 yo
What is the dosing if a pt taking aripiprazole is <50 kg?
- 2 mg daily x 2 days, increase to 5 mg daily
- Max: 10 mg
What is the dosing if a pt taking aripirazole is >50 kg?
- 2 mg daily x 2 days, 5 mg daily x days
- Target 10 mg once daily
- Max: 20 mg
What can use of amphetamine-based stimulants exacerbate?
Exacerbate motor and vocal tic sxs
What must be treated along w Tourette’s?
ADHD
If a pt doesn’t tolerate or want to take amphetamine based stimulants, what are the other options?
Can d/c amphetamine based stimulants and give a trial of atomoxetine or a tricyclic antidepressant
After trying atomoxetine or a tricyclic antidepressant and it doesn’t work, what are next steps?
If ADHD sxs are not well controlled, can resume amphetamine based stimulant and adjust dose of antipsychotic to better control Tourette’s sxs
What are common behaviors in conduct disorder?
- Destruction of property
- Deceitfulness or theft
- Serious violations of rules
What must be specified for conduct disorder?
Specify whether:
- Childhood-onset type: <10 yo
- Adolescent-onset type: >10 yo (no sxs under 10 yo)
- Unspecified onset: unclear info to determine age onset
For tx of ODD and CD, what is pharmacotherapy is considered as?
- Pharmacotherapy is considered adjunctive, palliative, non-curative
- Should only be used after baseline sxs/behaviors have been determined
- Other interventions have failed and/or aggression has escalated to dangerous levels
What can atypical antipsychotics be used for regarding ODD and CD?
May be used to tx severe persistent aggression, serious oppositional behaviors, defiance
For treatment of ODD and CD, when do we often see combination stimulant/alpha agonist tx?
If ADHD w impulsivity or need for sedation for sleep