Antipsychotics (M3) Flashcards
What are the six major psychotic conditions?
- schizophrenia
- bipolar disorder
- psychotic depression
- senile psychoses
- organis psychoses
- drug-induced psychoses
What are the improvements that antipsychotic drugs provide?
- reduce psychotic symptoms
- improve mood
- reduce anxiety
- improve sleep
What is the neurodevelopmental disorder that causes structural and functional changes in the brain in utero?
schizophrenia
What type of symptoms of schizophrenia include stereotyped thinking, apathy, and poor rapport?
negative symptoms
What type of symptoms of schizophrenia include poor working memory, attention deficit, and executive dysfunction?
cognitive symptoms
What type of symptoms of schizophrenia include hallucinations, delusions, suspiciousness, and disorganized thinking?
positive symptoms
What type of symptoms of schizophrenia include depression, elation, and suicidal ideation?
affective symptoms
What are the three hypotheses of schizophrenia?
- serotonin hypothesis
- dopamine hypothesis
- glutamate hypothesis
In the serotonin hypothesis of schizophrenia, what is the cause of the neurological problems?
5-HT2C and 5-HT2A
Which hypothesis of schizophrenia explains the social symptoms, cognitive impairment, and depression?
dopamine hypothesis
What are the goals of dopamergic treatment of schizophrenia?
- boost dopamine neurotransmission in the mesocortical dopamine pathway
- slow down dopamine neurotransmission in the mesolimbic pathway
What is the mechanism involved in the glutamate hypothesis of schizophrenia?
hypofunction of NMDA receptors on GABAergic interneurons reduces inhibition of glutamine neurons so too much glutamine
What dopamergic receptor type when blocked causes the most toxicity?
D2 receptors
What drugs are best for the catatonic signs of schizophrenia?
benzodiazepine
What drugs are best for the agitation and delirium signs of schizophrenia?
haloperidol, ziprasidone, aripiprazole
What drugs are best for the manic phase of bipolar disorder?
atypical antipsychotics
What type of drugs are best to use for aniemetic effects?
dopamine blockade
What type of drugs are best to relieve pruritis?
H1-receptor blocking action
What can be a result of use of antipsychotics and is a cholinergic deficiency secondary to supersensitivity of dopamine receptors in caudate-putamen?
tardive dyskinesia
What is uncontrollable restlessness called?
akathisia
What are the ABCD’s of antipsychotic drug effects on the autonomic nervous system?
- anorexia
- blurred vision
- constipation/confusion
- dry mouth
- sedation/stasis of urine
What is the side effect of antipsychotics that causes sensitivity to EPS effects, marked muscle rigidity, autonomic instability, altered BP, and fever?
Neuroleptic Malignant Syndrome
Which type of bipolar disorder can have longer periods of depression? 1. Which can have more serious manic episodes? 2
- bipolar II
2. bipolar I
What chemicals increase mania in bipolar disorder? 1. Which decrease? 2
- catecholamines
2. reduce dopamine and NE