Biological therapy for Schizophrenia Flashcards

1
Q

What are antipsychotics?

A

Drugs used to reduce the intensity of symptoms in psychotic disorders.

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2
Q

What are typical antipsychotics?

A

The first generation of drugs for SZ and work as dopamine antagonists.
-> include Chlorpromazine.

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3
Q

When were typical antipsychotics first used?

A

1950’s.

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4
Q

What is a typical antipsychotic?

A

Chlorpromazine.

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5
Q

How can chlorpromazine be taken?

A

Tablets, syrups of by injection.

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6
Q

What happens if chlorpromazine is taken orally?

A

It’s administered daily up to a maximum of 1000mg.

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7
Q

What are antagonists?

A

Chemicals that reduce the action of a neurotransmitter.

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8
Q

How do dopamine antagonists work?

A

Blocking dopamine receptors in the synapses of the brain, reducing the action of dopamine.

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9
Q

What type of symptoms to typical antipsychotics reduce?

A

Reduce positive symptoms but not negative symptoms.

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10
Q

What 2 things does chlorpromazine work as?

A

1) An antipsychotic.
2) A sedative.

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11
Q

What are the size effects of chlorpromazine?

A

-Dizziness, agitation, sleepiness.
-Tardive dyskinesia.

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12
Q

What is the most serious side effect of antipsychotics?

A

Neuroleptic malignant syndrome (NMS).

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13
Q

What does NMS result in?

A

High temps, delirium, coma & death.

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14
Q

What are atypical antipsychotics?

A

Drugs for SZ which were developed after typical antipsychotics and typically target a range of neurotransmitters such as dopamine and serotonin.

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15
Q

When were atypical antipsychotics first used?

A

1960’s and 1980’s.

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16
Q

What was the aim of atypical antipsychotics?

A

Made to improve the effectiveness of drugs in suppressing the symptoms of psychosis and minimises the side effects.

17
Q

What is clozapine and when is it taken?

A

Taken if typica; drugs fail.
-> Works on dopamine, serotonin and glutamate receptors.

18
Q

What does clozapine improve?

A

Improves mood so reduces suicide risk of individuals with SZ.

19
Q

What does risperidone do?

A

Binds to dopamine and serotonin sites.

20
Q

How does risperidone differ to clozapine?

A

Risperidone has less side effects than clozapine.

21
Q

How do you administer clozapine?

A

Tablets and syrups.

22
Q

What is the daily dosage of clozapine?

A

300-450mg.

23
Q

How do you administer risperidone?

A

Tablets, syrups and injections.

24
Q

How long does an injection of risperidone last?

A

2 weeks.

25
Q

What is the daily dosage of risperidone?

A

Starts at 4-8mg and builds to a max of 12mg.

26
Q

What are the side effects of clozapine?

A

Agranulocytosis.

27
Q

What is agranulocytosis?

A

A blood condition with could kill if not checked.