Depot antipsychotic medications are long-acting, injectable formulations used for the long-term maintenance therapy of schizophrenia. Which of the following are depot medications? (Select all that apply)
Amantadine (Symmetrel)
Clozapine
Aripiprazole (Ability)
Risperidone microspheres (Ridperdal Consta)
Haloperidol decanoate (Haldol Decanoate)
Olanzapine pamoate (Zyprexa)
Correct Answer : C,D,E,F
Depot (long-acting injectable) antipsychotics are used in the long-term management of schizophrenia to improve medication adherence and maintain stable therapeutic drug levels. These formulations are administered intramuscularly at extended intervals ranging from weeks to months. They are especially useful in patients with poor adherence to oral therapy or recurrent relapses. These medications include both first- and second-generation antipsychotics formulated for sustained release.
Rationale:
A. Amantadine (Symmetrel) is an antiviral and antiparkinsonian medication used to treat influenza A and drug-induced extrapyramidal symptoms. It is not an antipsychotic and has no depot injectable formulation for schizophrenia maintenance therapy. It is not classified as a long-acting antipsychotic.
B. Clozapine is a second-generation antipsychotic used for treatment-resistant schizophrenia and reducing suicidal risk. However, it is only available in oral form due to the risk of agranulocytosis requiring frequent blood monitoring. It does not have a depot injectable formulation.
C. Aripiprazole (Abilify) is available in long-acting injectable form for maintenance treatment of schizophrenia and bipolar disorder. The depot formulation allows sustained dopamine partial agonist activity, improving adherence and symptom stability over time. It is a recognized second-generation depot antipsychotic.
D. Risperidone microspheres (Risperdal Consta) is a long-acting injectable second-generation antipsychotic used for maintenance therapy in schizophrenia. It is administered every two weeks and provides steady plasma levels to reduce relapse risk. It is one of the most commonly used depot formulations.
E. Haloperidol decanoate is a long-acting first-generation antipsychotic used for maintenance treatment of schizophrenia. It provides extended dopamine blockade and is typically administered every 4 weeks. It is widely used in patients requiring long-term adherence support.
F. Olanzapine pamoate (Zyprexa) is a long-acting injectable second-generation antipsychotic used for schizophrenia maintenance therapy. It has a risk of post-injection delirium/sedation syndrome, requiring monitoring after administration. Despite this risk, it is an approved depot formulation.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Antidepressant therapy, including medications such as Selective serotonin reuptake inhibitors, carries a boxed warning regarding the potential increase in suicidal thoughts and behaviors in certain populations, especially during the initial phases of treatment or dose adjustments. This risk is most closely associated with younger individuals due to neurodevelopmental factors and early activation effects before mood improvement occurs. Close monitoring during initiation and dose changes is essential to ensure patient safety.
Rationale:
A. The elderly are not the primary group identified with increased antidepressant-associated suicide risk in the boxed warning. While older adults may still experience depression and require monitoring, they do not have the same increased risk pattern seen in younger populations. Suicide risk in elderly patients is more strongly related to untreated depression rather than medication-induced effects.
B. Children, adolescents, and adults younger than 25 years of age are the population most clearly identified in the boxed warning for increased risk of suicidal ideation and behavior during antidepressant therapy. This risk is highest during the first weeks of treatment or when doses are changed, possibly due to early energy improvement before mood stabilization. This group requires close observation and follow-up.
C. Including the elderly is inaccurate because they are not part of the specific high-risk age group defined in antidepressant safety warnings. Although caution is always necessary in older adults, they are not identified as having increased medication-induced suicidality compared to younger populations.
D. Adolescents and adults younger than 25 years are correctly included, but the elderly are incorrectly grouped in this option. While young individuals are at increased risk, combining them with the elderly creates an inaccurate classification. The boxed warning specifically emphasizes youth rather than geriatric populations.
Correct Answer is C
Explanation
Abortive therapy for migraine headaches includes selective serotonin receptor agonists such as Sumatriptan, which work by causing cerebral vasoconstriction and reducing neurogenic inflammation. These medications are effective in stopping acute migraine attacks but have significant cardiovascular effects due to their vasoconstrictive properties. Because of this mechanism, patient history must be carefully screened for conditions that increase risk of reduced coronary blood flow.
Rationale:
A. Renal disease is not a primary contraindication for sumatriptan use, although dose adjustments may be considered in severe impairment. The drug is primarily metabolized hepatically and does not significantly worsen renal perfusion. Therefore, renal disease is not the most concerning history finding in this context.
B. Diabetes is a chronic condition that increases cardiovascular risk over time, but it is not an absolute contraindication to sumatriptan therapy. While diabetic patients require careful cardiovascular assessment, diabetes alone does not directly interact with the vasoconstrictive mechanism of triptans.
C. Coronary artery disease is a major contraindication to sumatriptan use because Sumatriptan causes vasoconstriction of coronary vessels. In patients with preexisting coronary artery disease, this can precipitate myocardial ischemia or infarction. Therefore, this history is the most concerning and requires avoidance or extreme caution.
D. Asthma is not a primary contraindication for sumatriptan use. While some medications can trigger bronchospasm, triptans do not significantly affect airway tone. The main safety concern for sumatriptan remains its cardiovascular effects rather than respiratory complications.
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