Feb 23, 2024 NURS 6630 Discussion The Impact of Ethnicity on Antidepressant Therapy
NURS 6630 Discussion The Impact of Ethnicity on Antidepressant Therapy
NURS 6630 Discussion The Impact of Ethnicity on Antidepressant Therapy
Antipsychotic agents, also called neuroleptic or major tranquilizers, are used primarily to treat schizophrenia. Schizophrenia is characterized primarily by a clear sensory but marked thinking disturbance. Second-generation/ Atypical antipsychotics are widely used due to their broad spectrum of receptor activity since they affect Serotonin, dopamine, and GABA neurotransmitters (de Miranda et al., 2020). Besides, they are better at alleviating negative symptoms and cognitive dysfunction than typical antipsychotics. The purpose of this assignment is to develop a study guide for an antipsychotic agent.
Drug Description
Quetiapine, whose brand name goes by Seroquel, is used in treating schizophrenia. It is FDA-approved for treating schizophrenia, Bipolar disorder, and major depressive disorder (MDD) as an adjunctive treatment (de Miranda et al., 2020).
Non-FDA uses
The non-FDA uses of Seroquel include the treatment of generalized anxiety disorder (GAD), Alcohol Dependence, and Insomnia.
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According to Ansara (2020), Seroquel exhibits efficacy in managing treatment-resistant-GAD as an adjunctive agent. In this case, smaller doses than those prescribed for schizophrenia and bipolar disorder are usually needed for symptom improvement.
Seroquel has been found to reduce alcohol consumption in heavy drinkers and has the potential for treatment for alcohol dependence, particularly among heavy drinkers (Vatsalya et al., 2020).
Low doses of quetiapine are usually prescribed for insomnia, although this is a non-FDA use due to potential adverse effects like weight gain and akathisia (Boafo et al., 2020).
Drug classification
Seroquel is an antipsychotic under second-generation antipsychotics.
MOA
Pharmacokinetics
Pharmacodynamics
An antagonist for D2 receptors and serotonin receptors.
Absorption: Bioavailability: 100%
Peak plasma time: Immediate release-1.5 hr; extended release-6 hrs
Reduces the hallucinations and delusions associated with schizophrenia by blocking dopamine receptors in the mesolimbic system of the brain.
Acts on dopaminergic D1 and D2 receptors.
Metabolism: Metabolized in the liver by CYP3A4
Elimination:
Excretion: Urine (73%), feces (20%).
Appropriate dosing: 150-750 mg/day (Immediate release); 400-800 mg/day (extended release).
Children <12 years: safety not established.
Children >12 years: Dose range 400-800 mg/day (de Miranda et al., 2020).
Geriatrics: 50-200 mg/day (Immediate); 50 mg/day (Extended)
Pregnant and breastfeeding women: Not recommended.
Route of Administration: Orally.
Considerations for dosing alterations: Elderly and patients predisposed to hypotensive reactions.
Half-life: The time it takes for the concentration of a drug to decrease to half of its initial dose in the body.
Understanding half-life is important because it determines a drug’s excretion rates and steady-state concentrations. After one half-life has passed, half of the starting drug amount is eliminated from the body (Smith et al., 2018).
Seroquel has a half-life of 6 hours for immediate release formulation and 7 hours for extended-release formulation.
Side effects/adverse reaction potentials
Seroquel is associated with various adverse effects, including somnolence fatigue, dry mouth, constipation, increased appetite, weight gain, orthostatic hypertension, and dizziness (de Miranda et al., 2020). Neuroleptic malignant syndrome is a possible adverse effect due to the drug’s D2 receptor blockage.
Contraindications for use including significant drug-to-drug interactions
Currently, no identified FDA contraindications of quetiapine.
It is contraindicated in patients with documented hypersensitivity.
However, quetiapine is associated with an increased risk of death in elderly patients with dementia-related psychosis (Osborne et al., 2020).
Precaution is needed with drugs that prolong QT intervals and patients with prolonged QT intervals.
Contraindications due to drug-to-drug interactions
Amisulpride
Goserelin
Lefamulin
Leuprolide
Overdose Considerations
Seroquel can be life-threatening if taken in an overdose. Toxicity occurs with levels > 1500 ng/mL.
Supportive care is the mainstay of treatment in an overdose.
Measures for acute toxicity include: Maintaining the airway; Ensuring adequate oxygenation; Ventilation (Osborne et al., 2020).
Gastric lavage and administration of activated charcoal with a laxative can prevent more drug absorption if promptly given.
Diagnostics and labs monitoring
The prescribing clinician should monitor the patient’s metabolic panel focusing on fasting glucose, cholesterol and triglyceride levels, weight, and blood pressure (before and during treatment). Besides, patients on long-term treatment should have a lens exam every six months for cataract monitoring (Osborne et al., 2020). Leukopenia, neutropenia, and agranulocytosis can occur with Seroquel treatment, and thus a complete blood count (CBC) should be performed during the first few months of treatment (Osborne et al., 2020). In addition, orthostatic vital signs should be monitored in patients vulnerable to hypotension like geriatrics, patients with dehydration, hypovolemia, and those on antihypertensives.
Comorbidities considerations
Precautions should be taken in patients with hypokalemia, cardiac arrhythmia, and hypomagnesemia. Metabolic panels should be obtained before initiating the drug (Osborne et al., 2020).
Patients with diabetes mellitus should have their glucose monitored to avoid hyperosmolar coma.
Legal and ethical considerations
The clinician prescribing Seroquel should uphold beneficence by ensuring that the drug will have the maximum benefit in treating a patient’s psychotic, bipolar, or MDD symptoms. Nonmaleficence should be upheld by considering the drug’s side effects and ensuring that the benefits outweigh the risks.
The clinician should obtain consent from the patient before initiating treatment with Seroquel and explain the potential benefits and side effects for the patient to make an informed decision.
Confidentiality of the patient’s health information should be maintained to prevent legal consequences.
Pertinent patient education considerations
The patient should be educated about the drug’s indications, benefits, and side effects. Patients should be informed that the drug can be discontinued if they experience severe side effects and if they have a decrease in WBCs (de Miranda et al., 2020). Besides, they should be educated that abrupt drug discontinuation poses a risk for withdrawal symptoms.
Conclusion
Seroquel is a second-generation antipsychotic, FDA-approved for treating schizophrenia, Bipolar disorder, and MDD. It is also used off-label in treating insomnia, treatment-resistant GAD, and alcohol dependence. Seroquel is an antagonist for D2 receptors and serotonin receptors, which results in reduced psychotic symptoms. Patients on Seroquel should be monitored for cholesterol and triglyceride levels, weight, blood pressure, fasting glucose, cataracts, complete blood count, and orthostatic vital signs. Ethical principles of beneficence, nonmaleficence, confidentiality, and consent should be upheld when prescribing patient Seroquel.
References
Ansara, E. D. (2020). Management of treatment-resistant generalized anxiety disorder. The mental health clinician, 10(6), 326–334. https://doi.org/10.9740/mhc.2020.11.326
Boafo, A., Greenham, S., Sullivan, M., Bazaid, K., Suntharalingam, S., Silbernagel, L., Magner, K., & Robillard, R. (2020). Medications for sleep disturbance in children and adolescents with depression: a survey of Canadian child and adolescent psychiatrists. Child and adolescent psychiatry and mental health, 14, 10. https://doi.org/10.1186/s13034-020-00316-8
de Miranda, A. S., Ferreira, R. N., Teixeira, A. L., & de Miranda, A. S. (2020). Mood Stabilizers: Quetiapine. NeuroPsychopharmacotherapy, 1-23.
Osborne, V., Davies, M., Evans, A., & Shakir, S. (2020). Observational assessment of safety in Seroquel (OASIS): a specialist cohort event monitoring (SCEM) study in England. Therapeutic advances in psychopharmacology, 10, 2045125320954616. https://doi.org/10.1177/2045125320954616
Smith, D. A., Beaumont, K., Maurer, T. S., & Di, L. (2018). Relevance of Half-Life in Drug Design. Journal of medicinal chemistry, 61(10), 4273–4282. https://doi.org/10.1021/acs.jmedchem.7b00969
Vatsalya, V., Kong, M., Marsano, L. M., Kurlawala, Z., Chandras, K. V., Schwandt, M. L., Ramchandani, V. A., & McClain, C. J. (2020). Interaction of Heavy Drinking Patterns and Depression Severity Predicts Efficacy of Quetiapine Fumarate XR in Lowering Alcohol Intake in Alcohol Use Disorder Patients. Substance abuse: research and treatment, 14, 1178221820955185. https://doi.org/10.1177/1178221820955185
One of the most common disorders seen in clinical practice is major depressive disorder. However, treatment for this condition varies widely based on client aspects such as ethnicity and culture. To select effective psychopharmacologic therapies, you must grasp the influence of these elements as a psychiatric mental health expert. Consider how you might analyze and handle the individuals in the case studies based on the provided client variables, such as race and culture, for this Discussion.
Required Readings
Note: All Stahl resources can be accessed through the Library using this link. This link will take you to a log-in page for the Library. Once you log into the library, the Stahl website will appear.
Stahl, S. M. (2013). Stahl’s essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). New York, NY: Cambridge University Press.
Note: To access the following chapters, click on the Essential Psychopharmacology, 4th ed tab on the Stahl Online website and select the appropriate chapter. Be sure to read all sections on the left navigation bar for each chapter.
Also Read: Assignment: Assessing and Treating Pediatric Clients With Mood Disorders NURS 6630N
NURS 6630 Discussion The Impact of Ethnicity on Antidepressant Therapy
Chapter 7, “Antidepressants”
Stahl, S. M. (2014b). The prescriber’s guide (5th ed.). New York, NY: Cambridge University Press.
Note: To access the following medications, click on the The Prescriber’s Guide, 5th ed tab on the Stahl Online website and select the appropriate medication.
Study Guide for Medication Treatment Schizophrenia Spectrum and Other Psychosis Disorders
Antipsychotic medication has been the common and standard method of treatment patients with Schizophrenia. These medications provide the patients with a therapeutic and safe environment effective in controlling symptoms (Chang et al., 2021). Schizophrenia is a disorder affecting the sensory nerves and also creating a great disturbance in the thinking process. Both generic and non-generic drugs have been important in the treatment of Schizophrenia and other disorders. These antipsychotic drugs are commonly used because of the wide spectrum of receptor activity, especially in stabilizing dopamine and serotine levels in the brain. Again, they are effective in controlling symptoms. Therefore, the purpose of this write-up is to develop a study guide for an antipsychotic drug.
Drug Description
Paliperidone Palmitate is a drug used in treating Schizophrenia. Its brand name is Invega Sustenna. This drug is approved by the FDA to treat Schizophrenia and other psychosis disorders. The drug is approved to treat the schizoaffective disorder as either adjunctive therapy or monotherapy.
Non-FDA uses
Invega Sustenna belongs to the general class of antipsychotics, and its non-FDA uses include the treatment of depression and treating hallucinations.
According to Kverno & Rozenberg (2021), Invega Sustenna is used in treating depression despite the reviews showing that it has been given a rating of 3.9 out of 10 in treating depression. Lower doses of Invega Sustenna are advised when a patient is suffering from mild depression.
Invega Sustenna has been found to reduce hallucinations and help patients better think of themselves (Kverno & Rozenberg, 2021).
Review the following medications:
amitriptyline
bupropion
citalopram
clomipramine
desipramine
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Note: By Day 1 of this week, your Instructor will have assigned you to one of the following case studies to review for this Discussion. To access the following case studies, click on the Case Studies tab on the Stahl Online website and select the appropriate volume and case number.
Case 1: Volume 1, Case #1: The man whose antidepressants stopped working
Case 2: Volume 1, Case #7: The case of physician do not heal thyself
Case 3: Volume 1, Case #29: The depressed man who thought he was out of options
Review this week’s Learning Resources and reflect on the insights they provide.
Go to the Stahl Online website and examine the case study you were assigned.
Take the pretest for the case study.
Review the patient intake documentation, psychiatric history, patient file, medication history, etc. As you progress through each section, formulate a list of questions that you might ask the patient if he or she were in your office.
Based on the patient’s case history, consider other people in his or her life that you would need to speak to or get feedback from (i.e., family members, teachers, nursing home aides, etc.).
Consider whether any additional physical exams or diagnostic testing may be necessary for the patient.
Develop a differential diagnoses for the patient. Refer to the DSM-5 in this week’s Learning Resources for guidance.
Review the patient’s past and current medications. Refer to Stahl’s Prescriber’s Guide and consider medications you might select for this patient.
Review the posttest for the case study.
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