Anti-psychotics Flashcards
major tranquilizers
anti-psychotics/neuroleptics
minor tranquilizers
benzodiazepines and barbiturates
hallmark of schizophrenia
senses clear but thinking disrupted
positive symptoms of schizophrenia
- hallucinations
- delusions
- bizzare behavior
- thought disorder
negative symptoms of schizophrenia
- anhedonia
- alogia
- lack of attention
- flattening of expressions
typical anti-psyhcotics
*phenothiazines
*aliphatic derivatives
1. chloropromazine
2. promazine
- piperadines
3. thioridazone
4. mesoridazone - piperazines
5. procholroperazine
6. fluphenazine
* butyrophenones
1. haloperidol
2. droperidol
* thioxanthines
1. chloroprothixene
2. clopenthixol
3. flupenthixol
atypical neuroleptics
- Aripripazole
- Clozapine
- Olanzapine
- Ziprasidone
positive symptoms caused by which pathways
mesolimbic and nigrostriatal
negative symptoms caused by which pathways
mesocortical and tuberoinfundibular
aim of treatment of postive symptoms
slow down dopamine transmission
aim of treatment of negative symptoms
increase dopamine transmission
serotinin receptor agonists
- LSDs
- Mescaline
5ht agonists stimulate what receptors
- 5-HT2A
- 5-HT2C
serotonin agonists propagate which symptom of schizophrenia
+ Hallucinogenic symptoms
inhibitors of NMDA receptors on GABA
- Phencyclidine
- Ketamine
primary mechanism of action of neuroleptics
blockage of dopamine receptors (mainly D2)
Blocakge of medullary-paraventricular pathway
increased appetite and weight gain
blockage of nigrostriatal pathway
movement disorders
blockage of tuberoinfundibular pathway
hyperprolactinemia
other receptors blocked by antitpsychotics
- serotonin
- alpha I and II
- histamine
- muscarinic
positive symptoms treated by
typical anti-psychotics
negative symptoms treated by
atypical antipsychotics
anti-muscarinic effects of anti-psychotics
- dry mouth
- constipation
- urinary retention
- blurred vision
anti-apha receptor effects of anti-psychotics
- postural hypotension
- reflex tachycardia
- sexual dysnfunction
major therapeutic use of antipsychotics
schizophrenia
minor therapeutic uses
- psychosis (drug-induced and senile)
- tourette’s
- alzhiemers
- anxiety
adverse effects of antipsychotics
- EP effects
- Neuroleptic malignant syndrome
- dystonia
- parkinsonism
- tardive dyskinesia
- aakathisia
- gynaeconmastia
- hyperprolactinemia in females (leads to infertiliy)
high potency neuroleptics
- piperazines
- haloperidol
- thioxanthines
- clozapine
low potency neuropleptics
chloropromazine
treatment of agitated and violent patients
- haloperidol
- chloropromazine
treament of manic and elevated mood patients
- haloperidol
- fluphenazine