therapies and management of schizophrenia Flashcards
what are the 3 categories of therapies for schizophrenia
drug therapy
cognitive behavioural therapy adapted for psychosis (CBTp)
family therapy
what is the aim of antipsychotic drugs
to help the person function and increase their feelings of subjective well-being
what tends to be the course of treatment for a person with schizophrenia
initially antipsychotics and then a combination of medication and psychological therapy
what are the 2 types of drug therapy for sz
typical antipsychotics and atypical antipsychotics
all antipsychotics work by reducing …. which is…
dopaminergic transmission which is reducing the action of the neurotransmitter dopamine in areas of the brain associated with the symptoms of schizophrenia
what is an example of a typical antipsychotic
chlopromazine
what is an example of an atypical antipsychotic
clozapine risperidone
what do typical antipsychotics focus on treating
primarily to combat positive symptoms- products of an overactive dopamine system
what happens to other D2 receptors in the brain when taking typical antipsychotics
they are also blocked which causes extrapyramidal effects (evaluation)
what do atypical antipsychotics focus on treating
positive and negative symptoms and cognitive impairments
what are the 3 things different about atypical antipsychotics compared to typical antipsychotics
they carry a lower risk of extrapyramidal side effects
have beneficial effect on negative symptoms and cognitive impairment.
they are suitable for treatment resistant patients.
what is a benefit of atypical antipsychotics in general and specifically clozapine
because not all D2 receptors are inhibited
clozapine has very little effect on the dopamine systems tht control movement so tend not to cause the movement problems found with the typical antipsychotics
how do atypical antipsychotics cause less extrapyramidal side effects
they only temporarily block the D2 receptors and then rapidly dissociate allowing normal dopamine transmission
what else can be used to explain the differences between typical and atypical antipsychotics
typical blocks D2 receptors only whereas atypical have a stronger affinity for serotonin receptors and a lower affinity for D2 and so this explains the different effects of atypical compared to typical