Anti-Psychotics -- Segars Flashcards
Recurrent suicidal behavior – treatment
Clozapine
Schizophrenia - positive vs. negative symptoms
Positive = hallucinations, delusions, disorganized speech, agitation, behavioral dyscontrol
Negative = Apathy, avolition, alogia, cognitive deficits
Schizophrenia - cause of positive vs. negative symptoms
Name of this theory?
Positive = increased post-synaptic D2 receptor activity in mesolimbic system Negative = decreased D1 activity in pre-frontal cortex
Dopamine hypothesis
Typical antipsychotic agents (3)
Haloperidol
ChlorpromAZINE
FluphenAZINE
Atypical antipsychotic agents (8)
AriPIPRAZOLE
BrexPIPRAZOLE
ClozAPINE
OlanzAPINE
QuetiAPINE
PaliperIDONE
RisperIDONE
ZiprasIDONE
***Major SE difference between the typicals and atypicals
TYPICALS have movement-disorder side effects (extrapyramidal symptoms)
MoA of antipsychotics (in general)
Block D2 post-synaptic receptors
**Partial agonists at D2/3 and 5HT-1A receptors
AriPIPRAZOLE
BrexPIPRAZOLE
**Blocker of NE reuptake transporter (NERT)
NorquetiAPINE (metabolite of QuetiAPINE)
Which agents are more likely to block D1 and D4 receptors also?
Which agents are more likely to block 5-HT receptors also?
ATYPICALS
ATYPICALS
**Typical agent(s) – sedation, hypotension, seizures
Why?
Chlorpromazine
Low potency blocker of D2
**Typical agent(s) – dystonia, akathisia, dyskinesia, parkinson-like symptoms
Why?
Fluphenazine
**HALOPERIDOL
High potency blockers of D2
***Extrapyramidal symptoms (EPS) – treatments?
***Anticholinergics
- Diphenhydramine (Benadryl)
- Benztropine
- Trihexyphenidyl
Amantadine
Propranolol/Clonazepam (for akathisia)
**3 other receptors that can be blocked by antipsychotics and cause symptoms (w/ symptoms)
Muscarinic (dry mouth, constipation, blurred vision, etc.)
Alpha-adrenergic (orthostatic hypotension, impotence)
Histamine (SEDATION)
**Non-behavioral side effect related to dopamine inhibition
Hyperprolactinemia – amenorrhea, erectile dysfunction, infertility, decreased libido, galactorrhea)