Psychoses and related disorders Flashcards
Antipsychotic drugs, formerly called ‘(?)’, are also known as neuroleptics
major tranquillisers
Antipsychotic drugs, formerly called ‘major tranquillisers’, are also known as (?)
neuroleptics
An oral antipsychotic drug should be used in combination with (?) in patients with schizophrenia?
Psychological therapy
When choosing an antipsychotic drug to treat schizophrenia, what factors do you need to consider? (5)
- The potential to cause extrapyramidal symptoms (including akathisia)
- Cardiovascular adverse effects
- Metabolic adverse effects (including weight gain and diabetes)
- Hormonal adverse effects (including increase in prolactin concentration)
- Patient and carer preference
How long should a patient receive an antipsychotic drug at an optimal dose before it is deemed ineffective?
4-6 weeks
Clozapine: 8-10 weeks
Doses should be started low and slowly titrated up to the minimum effective dose according to patient response and tolerability (optimal dose)
Should you prescribe more than one antipsychotic drug at a time?
NO
except in exceptional circumstances (e.g. clozapine augmentation or when changing medication during titration)
Due to increased risk of adverse effects such as extrapyramidal symptoms, QT interval prolongation and sudden cardiac death
Which drug should be offered if schizophrenia is not controlled despite the sequential use of at least 2 different antipsychotic drugs (one of which should be a second-generation antipsychotic drug), each for an adequate duration?
Clozapine
When should clozapine be offered to patients with schizophrenia?
If not controlled despite the sequential use of at least 2 different antipsychotic drugs (one of which should be a second-generation antipsychotic drug), each for an adequate duration
When should long-acting depot injectable antipsychotic drugs be considered for patients with psychosis and schizophrenia?
When it is a clinical priority to avoid non-adherence
The (?)-generation antipsychotic drugs (also known as typical or conventional) act predominantly by blocking dopamine D2 receptors in the brain.
first
The first-generation antipsychotic drugs (also known as (?) or conventional) act predominantly by blocking dopamine D2 receptors in the brain.
typical
The first-generation antipsychotic drugs (also known as typical or (?)) act predominantly by blocking dopamine D2 receptors in the brain.
conventional
The first-generation antipsychotic drugs (also known as typical or conventional) act predominantly by blocking (?) receptors in the brain.
dopamine D2
Which generation of antipsychotics is more likely to cause acute extrapyramidal symptoms as a side effect?
First-generation
Which generation of antipsychotics is more likely to cause hyperprolactinaemia as a side effect?
Frist-generation
First-generation antipsychotic drugs include what 5 subtypes?
Penothiazine derivatives Butyrophenones Thioxanthenes Diphenylbutylpiperidines Substituted benzamides
Phenothiazine derivatives are first-generation antipsychotics. Name 7 drugs that fall under this category?
Chlorpromazine hydrochloride Fluphenazine decanoate Levomepromazine Pericyazine Prochlorperazine Promazine hydrochloride Trifluoperazine
Butyrophenones are first-generation antipsychotics. Name 2 drugs that fall under this category?
Benperidol
Haloperidol
Thioxanthenes are first-generation antipsychotics. Name 2 drugs that fall under this category?
Flupentixol
Zuclopenthixol
Diphenylbutylpiperidines are first-generation antipsychotics. Name one drug that falls under this category?
Pimozide
Substituted benzamides are first-generation antipsychotics. Name one drug that falls under this category?
Sulpiride
The (?)-generation antipsychotic drugs (also referred to as atypical) act on a range of receptors in comparison to first-generation antipsychotic drugs
second
The second-generation antipsychotic drugs (also referred to as (?)) act on a range of receptors in comparison to first-generation antipsychotic drugs
atypical
Which generation of antipsychotic drugs are more associated with side effects such as weight gain and glucose intolerance?
Second-generation
Is chlorpromazine hydrochloride a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is fluphenazine decanoate a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is levomepromazine a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is pericyazine a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is prochlorperazine a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is promazine hydrochloride a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is trifluoperazine a first- or second-generation antipsychotic?
First-generation
Subtype: phenothiazine derivative
Is benperidol a first- or second-generation antipsychotic?
First-generation
Subtype: butyrophenones
Is haloperidol a first- or second-generation antipsychotic?
First-generation
Subtype: butyrophenones
Is flupentixol a first- or second-generation antipsychotic?
First-generation
Subtype: thioxanthenes
Is zuclophenthixol a first- or second-generation antipsychotic?
First-generation
Subtype: thioxanthenes
Is pimozide a first- or second-generation antipsychotic?
First-generation
Subtype: diphenylbutylpiperidines
Is sulpiride a first- or second-generation antipsychotic?
First-generation
Subtype: substituted benzamides
Is amisulpride a first- or second-generation antipsychotic?
Second-generation
Is aripiprazole a first- or second-generation antipsychotic?
Second-generation
Is asenapine a first- or second-generation antipsychotic?
Second-generation
Is cariprazine a first- or second-generation antipsychotic?
Second-generation
Is clozapine a first- or second-generation antipsychotic?
Second-generation
Is lurasidone hydrochloride a first- or second-generation antipsychotic?
Second-generation
Is olanzapine a first- or second-generation antipsychotic?
Second-generation
Is paliperidone a first- or second-generation antipsychotic?
Second-generation
Is quetiapine a first- or second-generation antipsychotic?
Second-generation
Is risperidone a first- or second-generation antipsychotic?
Second-generation
What is the definition of high-dose antipsychotic? (2)
- Total daily dose of a single antipsychotic drug which exceeds the maximum licensed dose with respect to the age of the patient and the indication being treated
OR - A total daily dose of two or more antipsychotic drugs which exceeds the maximum licensed dose using the percentage method
Is there robust evidence that high doses of antipsychotic drug treatment is more effective than standard doses for the treatment of schizophrenia?
NO
The majority of adverse effects are dose-related and there is clear evidence for a greater side-effect burden with high-dose antipsychotic drug use
The majority of adverse effects associated with antipsychotic treatment are (?)-related
dose
There is clear evidence for a greater side-effect burden with high-dose antipsychotic drug use
Antipsychotic polypharmacy and ‘when required’ antipsychotic drug treatment are strongly associated with (?) prescribing
high-dose
What is the aim of treatment when prescribing an antipsychotic drug for administration in an emergency situation (e.g. rapid tranquillisation)?
To calm and sedate the patient WITHOUT inducing sleep
If you prescribe an antipsychotic drug for administration in an emergency situation (e.g. for rapid tranquillisation) what monitor of the patient is required?
Monitor for side-effects and vital signs at least every hour until there are no further concerns about their physical health status
What monitoring is required if a high-dose antipsychotic drug has been given?
Monitor the patient every 15 minutes
In elderly patients with dementia, the use of antipsychotic drugs are associated with a small increased risk of (1?) and an increased risk of (2?) or (3?)
- Mortality
- Stroke
- Transient ischaemic attack
Elderly patients are also particularly susceptible to postural hypotension
It is recommended that antipsychotic drugs should not be used in elderly patient with dementia, unless they are at risk of (1?) themselves or others, or experiencing (2?), (3?) or (4?) that are causing them severe distress
- harming
- agitation
- hallucinations
- delusions
How often should treatment be reviewed in an elderly patient with dementia taking an antipsychotic drug?
At least every 6 weeks (earlier for in-patients)
Which generation of antipsychotic drugs are most commonly associated with extrapyramidal side effects?
First generation
Extrapyramidal side effects of antipsychotic drugs are (?)-related
Dose
- Most likely to occur with high doses of high-potency first-generation antipsychotic drugs
Name 4 types of extrapyramidal side effects of antipsychotic drugs?
- Parkinsonian symptoms
- Dystonia
- Akathisia
- Tardive dyskinesia
Which patients taking antipsychotic drugs do parkinsonian symptoms (including bradykinesia, tremor) most commonly occur in? (2)
- Elderly females
- Those with pre-existing neurological damage (e.g. stroke)
Which patients taking antipsychotic drugs most commonly get dystonia as an extrapyramidal side effect?
Young males
Dystonic = uncontrolled muscle spasm in any part of the body
Acute dystonia can appear within hours of starting antipsychotics
Acute dystonia can appear within (?) of starting antipsychotics
hours
Akathisia characteristically occurs within (?) to (?) of starting antipsychotic treatment or on dose increase
hours to weeks
May be mistaken for psychotic agitation
What is tardive dyskinesia?
Abnormal involuntary movements of lips, tongue, face, and jaw
Tardive dyskinesia can develop on (1?)-term or (2?)-dose antipsychotic therapy, or even after (3?)
- long
- high
- discontinuation
In some patients tardive dyskinesia can be (reversible/irreversible?)
Irreversible
What is the aim of treatment when parkinsonian symptoms are identified in a patient taking an antipsychotic drug?
Reduce exposure to high-dose and high-potency antipsychotic drugs
Anti-muscarinic drugs can relieve symptom burden
What class of drugs can be prescribed to relieve symptom burden of parkinsonian symptoms in patients taking antipsychotic drugs?
Anti-muscarinic drugs
But they should NOT be routinely prescribed for prophylaxis with antipsychotic drugs
Tardive dyskinesia most commonly occurs in (?) taking antipsychotic drugs
elderly females
What is the most serious manifestation of late-onset extrapyramidal side effects from antipsychotic drugs that has no satisfactory treatment?
Tardive dyskinesia
Why is hyperprolactinaemia a side effect of most antipsychotic drugs?
Dopamine inhibits prolactin release
Antipsychotic drugs block dopamine receptors –> increase in prolactin
Which antipsychotic drug reduced prolactin concentration in a dose-dependent manner because it is a dopamine-receptor partial agonist?
Aripiprazole
Second-generation antipsychotic drug used in schizophrenia.
Aripiprazole is a dopamine D2 partial agonist with weak 5-HT1a partial agonism and 5-HT2A receptor antagonism.
Which antipsychotic drugs are most likely to cause symptomatic hyperprolactinaemia? (4)
Risperidone
Amisulpride
Sulpiride
First-generation antipsychotic drugs
Which antipsychotic drugs is hyperprolactinaemia a very RARE side effect? (6)
Aripiprazole Asenapine Cariprazine Clozapine Quetiapine
What are the clinical symptoms of hyperprolactinaemia? (6)
- Sexual dysfunction
- Reduced bone mineral density
- Menstrual disturbances
- Breast enlargement
- Galactorrhoea
- Increased risk of breast cancer
What are the mechanisms of antipychotic-induced sexual dysfunction:
- Reduced (1?) transmission and (2?) decrease libido
- Antimuscarinic effects can cause disorders of arousal
- Alpha1-adrenoceptor antagonists are associated with erection and ejaculation problems in men
- Dopamine
2. Hyperprolactinaemia
What are the mechanisms of antipychotic-induced sexual dysfunction:
- Reduced dopamine transmission and hyperprolactinaemia decrease (?)
- Antimuscarinic effects can cause disorders of arousal
- Alpha1-adrenoceptor antagonists are associated with erection and ejaculation problems in men
libido
What are the mechanisms of antipychotic-induced sexual dysfunction:
- Reduced dopamine transmission and hyperprolactinaemia decrease libido
- (?) effects can cause disorders of arousal
- Alpha1-adrenoceptor antagonists are associated with erection and ejaculation problems in men
Antimuscarinic
What are the mechanisms of antipychotic-induced sexual dysfunction:
- Reduced dopamine transmission and hyperprolactinaemia decrease libido
- Antimuscarinic effects can cause disorders of (?)
- Alpha1-adrenoceptor antagonists are associated with erection and ejaculation problems in men
arousal
What are the mechanisms of antipychotic-induced sexual dysfunction:
- Reduced dopamine transmission and hyperprolactinaemia decrease libido
- Antimuscarinic effects can cause disorders of arousal
- (?) antagonists are associated with erection and ejaculation problems in men
Alpha1-adrenoceptor