drug therapies Flashcards
what’s the most common treatment
antipsychotic drugs which reduce symptoms of psychotics
how often are antipsychotic drugs administered and how often, what form
every 2-4 weeks in form of tablets or syrup, can be short term use or long term yse
when were the first typical antipsychotic drugs made
1950
first type of antipsychotic drug was
chlorpromazine, can be taken as tablets, syrup or injection, up to 1000mg (usually take 400-800mg)
typical antipsychotics
work by acting as antagonists (chemicals which reduce the action of a neurotransmitter) in the dopamine system
how does chlorpromazine work
affects dopamine levels by reducing the action of dopamine, when patient begins to take Chlorpromazine, dopamine levels build up but then production is reduced, this helps SZ patient as dopamine antagonist normalises neurotransmitters in areas of brain, reducing symptoms like hallucinations
-so at first it’s worse for the patient as dopamine levels is increasing but then production is reduced
another way chlorpromazine can help SZ patients and non SZ patients
used for sedative purposes, mostly used when patients are first admitted to hospitals and are very anxious, syrup as it’s faster than tablets to be absorbed
atypical antipsychotics
maintain or improve effectiveness of drugs in suppressing symptoms of psychosis and minimise side effects
when were atypical antipsychotics removed and why
1970, people dying from a blood condition called Agranulo cytosis
side effect of chlorpromazine
tardive dyskinesia (involuntary muscle movements usually in face)
clozapine, how does it work
administered as injection, 300-400mg, atypical
- affects dopamine levels same was at chlorpromazine but acts on serotonin and glutamate receptors, helps SZ patient as it improve mood and reduces depression and anxiety which can then help cognitive functioning
- used to help suicidal patients
besides from clozapine, another form of atypical antipsychotics
risperidone, 1990s, developed to be as affective as clozapine without side effects, 4-8 mg, tablet syrup or injection every 2 weeks
side effect of risperidone
high temp, delirium, coma but THIS IS RARE