Evaluation: Drug Treatments for Schizophrenia

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A level Psychology (Clinical Psychology) Mind Map on Evaluation: Drug Treatments for Schizophrenia, created by Katie Greensted on 02/06/2019.
Katie Greensted
Mind Map by Katie Greensted, updated more than 1 year ago
Katie Greensted
Created by Katie Greensted almost 5 years ago
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Evaluation: Drug Treatments for Schizophrenia
  1. Drugs used to treat schizophrenia are antipsychotics, which act as dopamine antagonists by blocking dopamine receptors and therefore reduces the level of dopamine in the brain as high levels are implicated with schizophrenia, as explained in the dopamine hypothesis.
    1. The drug treatment approach to schizophrenia is a scientific approach based on secure biological evidence (the dopamine hypothesis which is underpinned by theory). This is a strength as it means it is a credible treatment.
      1. Due to its credibility, it is a widely accepted form of treatment and it has been found that 80% of people find the use of antipsychotics a useful treatment.
    2. Two different types of antipsychotics are used. Typical drugs are older, such as Chlorpromazine, and affect only dopamine. Atypical drugs are newer, such as Clozapine, and acts on serotonin as well as dopamine.
      1. Some people argue that drug treatment is a 'pharmacological straight jacker' and is not person centred. In other words, the drugs only serve to alleviate or mask the symptoms of sz rather than cure it. Furthermore, the treatment neglects important psychological or social factors that may contribute to the development of the disorder.
        1. Kuyken et al supports this idea, as results of their study showed that whilst drugs do generally improve the patient's situation, they are less effective than when used along side a person centred therapy, such as cognitive-behavioural therapy.
      2. By blocking neurotransmitters such as dopamine, the drugs aim to reduce positive symptoms of schizophrenia, such as hallucinations. Atypical drugs also help reduce the impacts of negative symptoms of schizophrenia.
        1. Although the drugs do help reduce the symptoms of sz, they have their own unpleasant side effects. For example, an individual may face dry mouth, drowsiness, weight gain or loss, or, on a more serious scale, they may develop side effects similar to the symptoms of Parkinson's disease. This means that although the drugs 'solve' one problem, they may cause other ones.
          1. However, the newer, atypical drugs are less likely to produce the more serious side effects than the older, typical drugs, and therefore it may be argued that facing less-serious side effects such as weight gain is worth it for reducing symptoms of sz like hallucinations and delusions.
            1. Side effects may also mean that the individual can no longer bring themselves to take the drug, and therefore may result in a relapse. The relapse rate is 70% in the first year after discharge if the individual stops taking medication, which is said to be likely due to the side effects of the drugs.
            2. Furthermore, people may become dependent on these drugs and therefore become addicted. This could result in issues further down the line, as well as the individual having to deal with huge withdrawal effects when the drug is removed.
            3. Clinicians will adjust the dosage of the drugs so it is tailored to that individual. The drugs are prescribed but close monitoring is necessary to ensure that the individual is responding well to the drugs.
              1. There is a time delay between administration of drugs and benefits. This is because it is time consuming to find the right dosage for that individual, and this may be subject to changed based on changes in the individual's lifestyle. As this is a time-consuming process, some people may argue that it is a weakness of the therapy.
                1. However, this process ensures that the individual is getting the best treatment for them in terms of drug treatment. Furthermore, it keeps them out of hospital and integrated into society, which is a benefit as it reduces the cost for hospitalisation, keeps resources free for those who really need it, and is good for the individual as they remain a functioning part of society.
              2. The drugs are usually taken in tablet or syrup form, but may be injected by the clinician if required.
                1. It is difficult to ensure that the individual is taking their medication, particularly because it is typically self-administered in tablet or syrup form. If the individual is still suffering from schizophrenic symptoms, they may not take the drugs, reducing the effectiveness of them.
                  1. Research has suggested that approximately 50% of those with schizophrenia stop taking the drugs that they were prescribed.
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