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Stahl's Essential Psychopharmacology Online
In Collaboration With
Methylphenidate (D)
THERAPEUTICS
Brands
Focalin
Focalin XR
see index for additional brand names
Generic?
Yes
Class
Stimulant
Commonly Prescribed For
(bold for FDA approved)
Attention deficit hyperactivity disorder (ADHD) in children ages 6–17 (Focalin, Focalin XR) and in adults (Focalin XR)
Narcolepsy
Treatment-resistant depression
How The Drug Works
Increases norepinephrine and especially dopamine actions by blocking their reuptake
Enhancement of dopamine and norepinephrine actions in certain brain regions (e.g., dorsolateral prefrontal cortex) may improve attention, concentration, executive function, and wakefulness
Enhancement of dopamine actions in other brain regions (e.g., basal ganglia) may improve hyperactivity
Enhancement of dopamine and norepinephrine in yet other brain regions (e.g., medial prefrontal cortex, hypothalamus) may improve depression, fatigue, and sleepiness
How Long Until It Works
Some immediate effects can be seen with first dosing
Can take several weeks to attain maximum therapeutic benefit
If It Works (for ADHD)
The goal of treatment of ADHD is reduction of symptoms of inattentiveness, motor hyperactivity, and/or impulsiveness that disrupt social, school, and/or occupational functioning
Continue treatment until all symptoms are under control or improvement is stable and then continue treatment indefinitely as long as improvement persists
Reevaluate the need for treatment periodically
Treatment for ADHD begun in childhood may need to be continued into adolescence and adulthood if continued benefit is documented
If It Doesn’t Work (for ADHD)
Consider adjusting dose or switching to a formulation of d,l-methylphenidate or to another agent
Consider behavioral therapy
Consider the presence of noncompliance and counsel patient and parents
Consider evaluation for another diagnosis or for a comorbid condition (e.g., bipolar disorder, substance abuse, medical illness, etc.)
Some ADHD patients and some depressed patients may experience lack of consistent efficacy due to activation of latent or underlying bipolar disorder, and require either augmenting with a mood stabilizer or switching to a mood stabilizer
Best Augmenting Combos for Partial Response or Treatment-Resistance
Best to attempt other monotherapies prior to augmenting
For the expert, can combine immediate release formulation of d-methylphenidate with a sustained release formulation of d-methylphenidate for ADHD
For the expert, can combine with modafinil or atomoxetine for ADHD
For the expert, can occasionally combine with atypical antipsychotics in highly treatment-resistant cases of bipolar disorder or ADHD
For the expert, can combine with antidepressants to boost antidepressant efficacy in highly treatment-resistant cases of depression while carefully monitoring patient
Tests
Blood pressure should be monitored regularly
In children, monitor weight and height
Periodic complete blood cell and platelet counts may be considered during prolonged therapy (rare leukopenia and/or anemia)