Biological Treatment SZ - Drug Treatment Flashcards
One Biological Treatment SZ
Drug Treatments
If SZ caused by an excess or a deficiency of a certain neurochemical, then medication can be used to correct this imbalance.
BIO T - First Generation Antipsychotics SZ
Chlorpromazine:
- First antipsychotic medication.
- Dopamine antagonist, reducing positive symptoms by blocking postsynaptic dopamine receptors without activating them.
- Most effective ones bind to D2 receptors.
- 40% gain no relief and still experience - symptoms
FGA side effects
Side effects are stiff/slow writhing movements of body that you can’t control. Leading to poor compliance and subsequent relapse.
Second Generations Antipsychotics SZ
Clozapine:
- Blocks dopamine in the same way as FGA but acts on serotonin and glutamate receptors.
- Reduces both + and - symptoms
Provides relief for up to 60% of people.
SGA Side effects
- Side effect is a blood condition called agranulocytosis
- Regular blood tests to make sure they are healthy.
Supporting Study for Drug Treatments
Ying Jiao Zhao et al 2016:
- Meta analysis of 18 antipsychotics using data from 56 randomised control trials with 10,000+ people.
- Found that 17 of the antipsychotics had significantly lower relapse rates than placebo.
- Drug treatments can be helpful to allow SZ people to avoid emotional and financial costs of hospital treatments.
Competing the supporting study for DT
Krishna Patel et al:
- 20% of people with SZ show negligible improvement after multiple FGA trials.
- 45% experience only partial or inadequate improvement and unacceptable side effects
Application of Drug Treatments SZ
De-intstitutionalisation:
Antipsychotic drugs meant that in the 1950’s people had a chance of staying in the