Antipsychotic Drug Therapy

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1
How did drugs change historical care; & what improvement & worsening figures does Cole report in the notes?
Historical comparison: drugs changed care previously involving institutionalisation; insulin shock & lobotomies
Cole (1964): 75% improved on conventional drugs vs 25% on placebo
Worsening; in the notes: none in the drug group vs 48% on placebo
2
Which five-year study compared antipsychotic generations? Give its findings & a qualification.
Ravanic et al. (2009): five-year comparison
Atypicals such as clozapine: superior psychometric symptom scores & fewer adverse effects in the source
Qualification: conventional drugs can still help; response varies between individuals
3
Which adherence study is cited? Recall all three percentages & their practical implication.
Rettenbacher et al. (2004): 54.2% fully complied; 8.3% partly; 37.5% non-compliant
One possible barrier: patients may not believe they require medication
Practical implication: benefits depend partly on taking the agreed treatment
4
Why can clinical trial efficacy differ from everyday effectiveness?
Clinical trial efficacy = benefit demonstrated under study conditions
Real-world effectiveness = benefit in ordinary care; with adherence & tolerability barriers
Judgement: evidence of efficacy does not guarantee equal everyday benefit
5
Distinguish efficacy from effectiveness.
Efficacy = benefit demonstrated under study conditions. Effectiveness = benefit in ordinary care; where adherence & tolerability can limit outcomes.
6
Evaluate antipsychotics: Effectiveness.
1. In terms of effectiveness
Historical comparison: drugs changed care previously involving institutionalisation; insulin shock & lobotomies
Cole (1964): 75% improved on conventional drugs vs 25% on placebo
Worsening; in the notes: none in the drug group vs 48% on placebo
2. Comparing generations
Ravanic et al. (2009): five-year comparison
Atypicals such as clozapine: superior psychometric symptom scores & fewer adverse effects in the source
Qualification: conventional drugs can still help; response varies between individuals
3. However: non-compliance
Rettenbacher et al. (2004): 54.2% fully complied; 8.3% partly; 37.5% non-compliant
One possible barrier: patients may not believe they require medication
Practical implication: benefits depend partly on taking the agreed treatment
4. This creates a discrepancy
Clinical trial efficacy = benefit demonstrated under study conditions
Real-world effectiveness = benefit in ordinary care; with adherence & tolerability barriers
Judgement: evidence of efficacy does not guarantee equal everyday benefit
Precision note: Historical study figures are retained from your notes. Drug-specific results should not be generalised to every atypical or every patient.
7
Which motor & other serious adverse effects create an ethical concern about antipsychotics?
Motor side effects: tardive dyskinesia & Parkinsonian effects
Other serious risks: agranulocytosis & seizures; risks differ between drugs
Ethical implication: weigh symptom relief against adverse effects
8
How can acute symptoms affect informed consent; & what must not be assumed?
Acute psychotic episodes: may make understanding & decision-making difficult
Capacity to consent: requires individual assessment; not automatically absent
Concern: whether the person understands benefits; risks & alternatives
9
Which critic is associated with the social-control argument; & what does “chemical straitjackets” mean?
“Chemical straitjackets”: critics’ description of medication used to enforce conformity
Szasz (1960): criticised physical interventions & psychiatric labels
His argument: medical labelling can be used by society to manage non-conformity
10
What ethical dilemma should you weigh when judging antipsychotic treatment?
Patient benefit: treatment intended to eliminate suffering?
Social compliance & control: or treatment used coercively to regulate behaviour?
Balanced judgement: evaluate consent & purpose without dismissing genuine clinical benefits
11
What does capacity to consent mean in this evaluation?
The person’s ability to understand the relevant benefits; risks & alternatives & make a decision. It requires individual assessment; schizophrenia does not automatically remove capacity.
12
Evaluate antipsychotics: Ethical implications.
1. Regarding: physical harm
Motor side effects: tardive dyskinesia & Parkinsonian effects
Other serious risks: agranulocytosis & seizures; risks differ between drugs
Ethical implication: weigh symptom relief against adverse effects
2. Informed consent
Acute psychotic episodes: may make understanding & decision-making difficult
Capacity to consent: requires individual assessment; not automatically absent
Concern: whether the person understands benefits; risks & alternatives
3. Furthermore: social control
“Chemical straitjackets”: critics’ description of medication used to enforce conformity
Szasz (1960): criticised physical interventions & psychiatric labels
His argument: medical labelling can be used by society to manage non-conformity
4. This prompts a dilemma
Patient benefit: treatment intended to eliminate suffering?
Social compliance & control: or treatment used coercively to regulate behaviour?
Balanced judgement: evaluate consent & purpose without dismissing genuine clinical benefits
Precision note: “Parkinsonianism” is corrected to Parkinsonian effects; the capacity-to-consent claim is qualified.
13
Who evaluated chlorpromazine in 1952; & how did antipsychotics contribute to changes in care?
Delay & Deniker (1952): evaluation of chlorpromazine
Antipsychotics in the 1950s: contributed to reduced reliance on institutional care
Community-based care: greater opportunity for independent living
14
What economic & practical benefits may follow; & what else supports independent living?
Reduced hospital reliance: may reduce the economic strain on hospitals
Independent living: depends on symptom control AND housing; follow-up & social support
15
Which historical adverse-outcome figures are cited; & why must they be treated cautiously?
Tiihonen et al. (2006): source cites ~37-fold suicide-risk association with non-use
NCISH (2015); source figures: 346 homicides; England; 2003-2013; 29% non-compliant before the offence
Interpretation: historical; selected-sample associations; not general predictions
16
What two interpretation errors must you avoid when using these adverse-outcome figures?
Association ≠ causation: other differences may influence medication use & outcomes
Avoid denominator errors: a figure among offenders is not the violence risk of all patients
Overall judgement: continuity of care matters; social implications require contextual evidence
17
What is a denominator error in the homicide example?
Confusing a percentage within a selected offender sample with the risk of violence among all people with schizophrenia. These are different populations & different probabilities.
18
Evaluate antipsychotics: Societal implications.
1. Positively: changed care
Delay & Deniker (1952): evaluation of chlorpromazine
Antipsychotics in the 1950s: contributed to reduced reliance on institutional care
Community-based care: greater opportunity for independent living
2. Economic & practical benefits
Reduced hospital reliance: may reduce the economic strain on hospitals
Independent living: depends on symptom control AND housing; follow-up & social support
3. Conversely: adverse outcomes
Tiihonen et al. (2006): source cites ~37-fold suicide-risk association with non-use
NCISH (2015); source figures: 346 homicides; England; 2003-2013; 29% non-compliant before the offence
Interpretation: historical; selected-sample associations; not general predictions
4. Therefore: interpret carefully
Association ≠ causation: other differences may influence medication use & outcomes
Avoid denominator errors: a figure among offenders is not the violence risk of all patients
Overall judgement: continuity of care matters; social implications require contextual evidence
Precision note: non-use associations do not prove that stopping medication caused an outcome. These historical figures are retained only with their limits.
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