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What
is It?
Positive Symptoms
Negative Symptoms
Causes
Inheritance
Neurochemical
Public Health Problem
Treatment
Decreasing Stigma
Links for Professionals
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The development of an array of medications and psychosocial interventions
has greatly improved the outlook for patients with schizophrenia. Newer
antipsychotics can help control the symptoms of the disorder while causing
fewer stigmatising side effects. Education and other psychosocial interventions
can help patients and families learn to manage the disorder more effectively,
reduce social and occupational dysfunction, and enhance the social reintegration
of those with schizophrenia. Research to find safer and more effective
treatments is underway. In addition, continuing studies on the better
prognosis for schizophrenia in developing (as opposed to developed) countries
may suggest strategies that can be applied globally to improve the outcome
for patients with schizophrenia everywhere.
There are three main components of treatment for schizophrenia:
- Medications to relieve symptoms and prevent relapse;
- Education and psychosocial interventions to help patients and families
solve problems, deal with stress, cope with the illness and its complications,
and help prevent relapses;
- Social rehabilitation to help patients reintegrate into the community
and regain educational or occupational functioning.
Clinicians should be aware of the principles outlined in the World Psychiatric
Association's Declaration of Madrid, issued in 1996, which stressed the
importance of keeping abreast of scientific developments, conveying updated
knowledge to others, and accepting the patient as a partner by right in
the therapeutic process. It is also important that the various treatment
approaches be provided in an integrated manner; for example, using the
principles of case management teams (Kanter 1989). This ensures that all
efforts are focused on the same goals and that the patient and family
will understand the common therapeutic thread in the treatment plans.
Finally, clinicians should encourage patients and families to become involved
with patient/family support groups, which can provide valuable help and
guidance in coping more effectively with the illness.
Antipsychotic Medications / The medications
that are currently used to treat schizophrenia generally fall into two
groups:
- Standard antipsychotics (previously referred to as neuroleptics)
- Novel antipsychotics (also referred to as second generation or "atypical"
antipsychotics)
Standard antipsychotics / The first standard
antipsychotic medicines were introduced into clinical practice in the
early to mid-1950s. The term 'standard' (or 'traditional' or 'conventional')
antipsychotic is used to refer to all the antipsychotic drugs developed
before the introduction of clozapine. These antipsychotics were formerly
called neuroleptics because of their characteristic side effects on the
extrapyramidal motor system, including dystonia, parkinsonism, dyskinesia,
and akathisia. These agents have proved useful in reducing, and sometimes
eliminating, positive symptoms of schizophrenia such as thought disorder,
hallucinations, and delusions. They can also decrease associated symptoms
such as agitation, impulsiveness, and aggressiveness. Unfortunately, they
do not appear to be as effective in reducing the negative symptoms of
schizophrenia such as apathy, social withdrawal, and poverty of ideas.
If these medicines are taken consistently, they can also reduce the risk
of relapses. The introduction of effective antipsychotic medicines made
it much more possible to treat patients with schizophrenia in the community,
while avoiding readmission to the hospital. Antipsychotic medication can
also help people with schizophrenia benefit from psychosocial forms of
treatment.
Common standard (traditional) antipsychotic medications*
Benperidol Levomepromazine
Bromperidol Oxypertine
Butaperazine Penfluridol
Chlorpromazine Perazine
Chlorptothixene Periciazine
Clopenthixol Perphenazine
Clotiapine Pimozide
Droperidol Pipamperone
Fluanisone Promazine
Flupentixol Promethazine
Fluphenazine Sulpiride
Fluspiriline Thioridazine
Haloperidol
Novel antipsychotics / Whereas the focus
in the earlier years of drug development was mainly on reducing positive
symptoms such as hallucinations and delusions, in recent years researchers
have been working to develop antipsychotic drugs with fewer side effects
and improved efficacy against negative as well as positive symptions;
factors that would help improve quality of life and are crucial in modern
treatment and rehabilitation efforts. Clozapine was the first antipsychotic
drug developed that caused very few extrapyramidal side effects (EPS).
Clozapine has been followed by a number of other new drugs (see Appendix
D) that share this advantage. The terms "novel," second generation,
or "atypical" antipsychotic are used to refer to this group
of medications, novel being the preferred term because atypicality is
difficult to delineate. A considerably lower propensity to induce EPS
is the landmark characteristic of the novel antipsychotics. They also
appear to have advantages over the traditional antipsychotics in improving
negative symptoms and inducing lower or no relevant increase in prolactin
levels.
Education and Other Psychosocial Treatments /
It has long been realised that psychosocial factors affect the treatment,
prognosis, course and outcome of schizophrenia. Even though drug therapies
have revolutionised the treatment of schizophrenia, recent years have
also witnessed a growing awareness supported by research evidence that
psychosocial interventions have considerable impact on treatment outcomes
in schizophrenia. Psychosocial interventions involve using psychological
or social management strategies and techniques to reduce or eliminate
cognitive, psychological, and social impairments, as well as disabilities,
dysfunctions, and handicaps in order to facilitate social reintegration
and psychosocial rehabilitation. In practical terms, psychosocial interventions
aim to reduce both positive and negative symptoms, enhance insight and
adherence to treatment, prevent relapse, improve social and communications
skills, and provide coping skills and strategies to patients and relatives
so that they can better deal with stresses. Psychosocial intervention
is an ideal complement to drug therapies.
The problems in living experienced by people with schizophrenia
are social, personal, clinical, and sometimes political (e.g., discrimination).
Because the impact of schizophrenia is felt in so many areas of life,
effective treatment must address multiple problems, including early recognition
of relapse, relapse prevention, improved insight and adherence to treatment,
psychoeducation, family living, community care and care in other special
settings, social and coping skills, and rehabilitation.
Virtually every rigorous comparison of medical
approaches and social rehabilitation has shown that medication combined
with social rehabilitation leads to a better outcome than either approach
alone. Medications are often a necessary but never a sufficient treatment,
while social rehabilitation is almost always augmented by the use of carefully
prescribed medications.
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