Wenn Stimulanzien bei ADHS nicht wirken: Warum dasselbe Medikament unterschiedlich wirkt

About this video

• Video Title: Wenn Stimulanzien bei ADHS nicht wirken: Warum dasselbe Medikament unterschiedlich wirkt
• Channel: ADHS verstehen mit Mark
• Speakers: Mark (implied narrator)
• Duration: 00:07:08

Overview

This video explains why stimulant medications for ADHD may not be effective for everyone and how their effectiveness depends on individual neurochemical imbalances, specifically concerning dopamine and norepinephrine levels. The speaker details how different combinations of these neurotransmitters influence ADHD symptoms and how medication choices should be tailored accordingly.

Key takeaways

• Individualized Neurochemistry: The effectiveness of ADHD medications like methylphenidate and dextroamphetamine varies because individuals have different underlying levels of dopamine and norepinephrine.
• Symptom Complexity: ADHD presents with two main symptom complexes: inattention (affecting concentration, organization, motivation, and self-control) and impulsivity/hyperactivity (manifesting as irritability, excitability, and motor or cognitive hyperactivity).
• Stimulant Mechanism: Stimulants work by increasing both dopamine and norepinephrine. This is beneficial for those with low levels of both but can worsen symptoms for individuals with already high norepinephrine.
• Treatment Strategies:
  • If stimulants improve inattentive symptoms but worsen hyperactive-impulsive ones, a combination with medications like guanfacine or clonidine might be needed to balance norepinephrine.
  • If stimulants do not improve inattentive symptoms at all, it suggests dopamine levels are already too high, potentially leading to psychosis. In such cases, atypical antipsychotics (dopamine receptor blockers) are recommended.
  • If stimulants improve hyperactive-impulsive symptoms but not inattentive ones, it indicates an excess of dopamine and a deficit of norepinephrine, suggesting a treatment with aripiprazole and atomoxetine.
  • If stimulants worsen both inattentive and hyperactive-impulsive symptoms, a combination of an atypical antipsychotic (like aripiprazole) and guanfacine is advised to manage dopamine and norepinephrine.