Introduction to Psychopharmacology- Dr. Masserano Flashcards
APA: Diagnostic and Statistical Manual of Mental Disorders V
-Disorder that lasts for at least 6 months
-Includes at least 1 month active phase
-At least 2 of the following
Delusions, hallucinations, disorganized speech, grossly disorganized, negative symptoms
Delusion
-Misinterpretation of perceptions/experiences
Hallucinations
- Usually auditory
- Voice distinct from the person’s own thoughts
Disorganized speech (thinking)
- Conversations that slip off the tract
- Loose association
Grossly disorganized
-Inability to function in society
Negative symptoms
- Affective flattening
- Alogia: poverty of speech
- Avolition: exhaustion
- Anhodonia: without pleasure
Dopamine theory of psychoses
- Due to excess dopaminergic activity
- Cocaine, amphetamines, levodopa, can be causative agents
- DA antagonists are clinically effective
Mesolimbic pathway
- Hyperactivity = positive symptoms
- D2 blockade
Mesocortical pathway
- Hypoactivity = negative symptoms
- Influenced by 5HT
Nigrostriatal pathway
- Regulates motor movement
- Side effects: dopamine blockade (Pseudoparkinson)
Tuberoinfundibular pathway
- Inhibits prolactin release
- Side effects: dopamine blockade (hyperprolactinemia)
Schizophrenia Neurochemistry Theory
- Hyperdoaminergic transmission in the mesolimbic system (causing positive symptoms)
- Hypodopaminergic transmission in mesocortical system (causing negative symptoms)
Treatment options
- FGA
- SGA
- All are doamine D2 receptor antagonists
Major (unipolar) depression
- Mnemonic = SALSA
- Sleep disturbance
- Anhedonia
- Low self esteem
- Appetite depression
SIG E CAPS screening questions
- Sleep decreased
- Interest decreased
- Guilt
- Energy decreased
- Concentration difficulties
- Appetite disturbance
- Psychomotor retardation
- Suicidal thoughts
- Five of nine major positive answers to the above questions everyday for 2 weeks
Mania
- Elevated euphoria, self esteem and grandiosity
- Restlessness
- High levels of energy
Types of Manic depression (Bipolar) disorder
- Bipolar I
- Bipolar II
- Cyclothmic
- Dysthymic
Bipolar I definition
- Mania
- Major depression
Bipolar II
- Hypomania
- Major depression
Cyclothymic
- Hypomania
- Mild to moderate depression
Dysthymic
- Mild or moderate depression
- No discrete episodes
Monoamine Theory of Depression
- Due to a lack of CNS 5HT and NE
- Causative agents: Reserpine and Beta blockers
- Treatment agents: TCAs, SSRIs, MAOIs
Neurogenesis Theory of Depression
- Stress induced decreases in hippocampal neurogenesis
- Antidepressants can increase neurogenesis over 2 to 3 weeks
Possible treatments of depression
- TCAs
- SSRIs
- SNRIs
- Atypical antidepressants
- MAOIs
- ECT