ADHD Flashcards
What does ADHD treatment rely on predominantly ?
Relies on precribing stimulant medications of which methylphenidate is most widely used.
ADHD?
Attention deficit hyperactivity disorder (ADHD) is a disorder that
manifests in childhood with symptoms of
* Hyperactivity
* Impulsivity
* Inattention
ADHD Neurotransmitter deficiencies?
Neurotransmitter differences particularly in levels of dopamine, norepinephrine, epinephrine and serotonin.
Dopamine and Norepinephrine roles?
Dopamine has been associated with approach and pleasure-seeking behaviours
Norepinephrine plays a role in emotional/behavioural regulation
What are additional related conditions with ADHD?
- Depression
- Personality disorder
- Bipolar disorder
- Obsessive compulsive disorder (OCD)
Cure for ADHD?
No cure for ADHD, currently available treatments may help reduce symtoms
Commonly used medication for ADHD?
- Methylphenidate(Ritalin, Concerta and Metadate)
- Dextroamphetamine (Adderall)
ADHD MOA?
Blocking the re uptake of NOR and DOP and facilitating their release. Enables NOR and DOP availability in certain brain regions: PFC and basal ganglia
ADHD Psychosocial intervention?
- Healthy diet and exercise- colourants
- Allergy checks - Some children may benefit
- Teachers - understand ADHD- support/modify
environment is helpful. - Simple strategies-paying a\en:on - child sits,
using visual aids, non-verbal reminders
(improve symptoms).
Pharmacotherapy of ADHD?
My Moods Can Attain
- Atomoxetine
- Methylphenidate
- Modafinil
- Clonidine
Atomoxetine MOA?
Selective Norepinephrine Reuptake inhibitor (NRI) Also, it increases pre‐frontal dopamine release
Atomoxetine T1/2?
Short t1⁄2, high plasma protein binding, metabolised by hepatic enzymes
Atomoxetine Indications?
ADHD in children, adolescence and adults
Atomoxetine S/E?
GI upset, dry mouth, headache, palpitation, insomnia, sweating,
Pruritis
Atomoxetine CI?
GI upset, dry mouth, headache, palpitation, insomnia, sweating,
Pruritis
Atomoxetine Trade?
- Trade: Strattera®
Methylphenidate MOA?
Norepinephrine–Dopamine Reuptake inhibitor (NDRI)
Methylphenidate Chemical Structure?
- It is a phenethylamine derivative which also shares part of its basic
structure with catecholamines
Methylphenidate Half-life
Short t1⁄2, extensive 1st‐pass metabolism, hepatic metabolism
Methylphenidate I?
ADHD, narcolepsy
Methylphenidate CI?
glaucoma, hyperthyroidism, glaucoma, cardiac disease, Tourette’s syndrome (inherited neuropsychiatric disorder)
Methylphenidate Trade?
Trade: Ritalin® | Concerta®
Methylphenidate S/E?
headache, dyskinesia, arrhythmia, urticaria, hair loss, blood dyscrasias (anaemia, leucopoaenia,thrombocytopaenia), convulsion
Modafinil MOA?
Unclear precise mechanism of action:
oDopamine transported blocker (DAT)
oD2 receptor partial agonist
Modafinil I?
ADHD, narcolepsy
Modafinil S/E?
delusion, hallucination, anxiety, suicide ideation, chest pain,
epistaxis, hypersensitivity reaction (severe)
Modafinil CI?
anxiety disorders, renal impairment, children under 18 years
Modafinil Trade?
Trade: Provigil®