drug treatment for schizophrenia Flashcards

1
Q

what biological treatment is used to treat schizophrenia?

A

anti-psychotics

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2
Q

what are anti-psychotics?

A

drugs that prevent symptoms of schizophrenia.

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3
Q

what two types of anti-psychotics are there?

A

A-typical and Typical

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4
Q

what are A-typical drugs?

A

stops both positive and negative symptoms and is newer than typical - brought out in the 90’s

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5
Q

what are Typical drugs?

A

older drugs, only stops positive symptoms came out in the 50’s-60’s

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6
Q

what are the side effects of Typical drugs?

A
  • problems with sex life,
  • high blood pressure,
  • stiffness and shakiness.
  • feeling sluggish and slow in your thinking
  • problems with breast swelling or tenderness.
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7
Q

what are the side effects of A-typical drugs?

A
  • weight gain
  • sleepiness and slowness
  • interference with your sex life
  • increased chance of diabities
  • effects blood pressure
  • in high doses some can cause parkinsons
  • long term use may cause movements of the face and rarely the arms or legs this is known as tardive dyskinesia.
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8
Q

what is a example of a Typical drug?

A

Chlorpromazine - work by binding with receptors and stopping the absorption of dopamine, as increased dopamine causes positive symptoms such as hallucinations.

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9
Q

what is an example of a A-typical drug?

A

clozapine -

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10
Q

what is a benefit of using newer drugs such as Clozapine rather than older drugs in terms of side-effects?

A

it doesn’t affect dopamine which controls movement so their are less side effects such as stiffness and sluggish feeling and tardive dyskenisa.

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11
Q

whats the problem with clozapine?

A

it can effect a persons bone marrow which can lead to a shortage of white cells, which can make people vulnrable to infection.

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12
Q

how long does it take for anti-psychotics to take affect?

A

a few days - a few weeks

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13
Q

does everyone’s symptoms go after taking anti-psychotics ?

A

no, 25% of those on anti-psychotics do not get reduced symptoms and they are known as “treatment-resistant”.

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14
Q

is every prescriptions the same for everyone?

A

no, prescriptions will be best suited to each patient and their medical records will be checked to ensure the drugs are right for them.

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15
Q

what is drug therapy based on?

A

the idea that disorders are due to an imbalance of neurotransmitters, and drugs are used to aim to restore these neurotransmitters back to normal levels.

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16
Q

what is the first line of treatment for schizophrenia and why?

A

drug therapy, as they can help reduce symptoms in patients that would otherwise have prevented them from accessing other psychological therapies for this disorder.

17
Q

what does Clozapine improve?

A

delusions and hallucinations, also seems to be helpful to those who dont respond well to other medication.

18
Q

why do newer A-typical drugs less likely to produce the side-effected a associated with taking the drug?

A

there is evidence that suggest they dont bind with receptors so tightly and that they also block 5-HT2A receptors (serotonin r)

19
Q

is Clozapine given to patients initially?

A

no, it is given after two other anti-psychotics have been tried as it is quite hard to monitor and the side effects can be dangerous, however most people find that overall it gives them a better quality of life.

20
Q

how long may it take before anti-psychotics take effect?

A

a few days - a few weeks.

21
Q

what do people with schizophrenia often do, to prevent them from getting unwell again?

A

take anti-psychotics for years even though the symptoms may of gone - if they stop taking the drugs too soon then the symptoms may return.

22
Q

how many people dont take their drugs as reccommended?

A

at least half of people with schizophrenia

23
Q

what may be the reasons behind people not taking drugs ?

A
  • the side effects
  • because they feel as though they are getting better
  • in one survey some people said it was because they missed hearing the voices.
24
Q

how many people prescribed do not get better and what is this known as?

A

25% - these people are known as “treatment-resistant.”

25
Q

how do clinicians know what drug to describe?

A
  • based on the clients medical history
  • previous medication they’ve tried
  • discussing the benefits and issues with each drugs
26
Q

why can anti-psychotics sometime be known as “chemical straight-jackets” ?

A

the power lies with the doctor and not the patient which may make them feel disempowered.

  • the anti-psychiatry movement would argue that it is wrong that some people should assumed a position in society whereby they are able to control others through medication.
  • form of social control.
27
Q

what may be a problem with the effectiveness of anti-psychotics?

A

only effective in 60% of cases and often patients are left with negative symptoms - they may also gain side effects that cause them to need medication for them as well.

28
Q

what did Emsley (2008) find?

A

those injected with anti-psychotic risperidone early in disorder had high remission rates and low relapse rates

29
Q

what did Meltzer et al (2004) find?

A

that haloperidol improves symptoms and some new drugs also show improvement compared to placebo’s.

30
Q

what is a major barrier to treatment?

A

non-compliance to taking the prescribed set of drugs e.g. in one study only 50% were compliant and in Rosenhan’s 1973 study patients were observed to hide their medication.