Patients' Knowledge about Prescribed Antipsychotics and Medication Adherence in Schizophrenia: A Cross-Sectional Survey

Oral versus long-acting injectable antipsychotics in schizophrenia spectrum disorders: A systematic review of patients' subjective experiences

Schizophrenia spectrum disorders significantly impact daily functioning, with antipsychotic medications regarded as the gold standard treatment. However, their efficacy is often limited by side effects and adherence rates. Understanding patient perspectives and subjective experiences, particularly regarding oral versus long-acting injectable (LAI) antipsychotics, is crucial for improving medication outcomes and patient-tailored treatments. A systematic review of qualitative studies was conducted following the ENTREQ guidelines. Data were extracted from PubMed, Scopus, and PsycInfo, with thematic synthesis used to identify key themes in patient-reported experiences. Thirty-nine studies (1.477 patients) were included and analyzed, revealing three core themes: (1) perception and experience of medication, (2) social dynamics and influence, and (3) trust and communication with healthcare providers. Side effects and lack of information were often mentioned by patients. While LAI antipsychotics were linked to symptom stability and functional improvements, many patients lacked adequate information about their effects, contributing to adherence difficulties. Stigma and negative beliefs were common across both oral and LAI formulations, thus determining significant barriers to medication adherence. This review emphasizes that patients' experiences with antipsychotic medications are shaped by three key factors: the environment, the therapeutic relationship, and the drug itself. Two critical areas warrant particular attention: psychoeducation and stigma. Bridging psychoeducational gaps and addressing stigma could significantly enhance treatment adherence and outcomes. Additionally, greater emphasis on providing comprehensive and accurate information about antipsychotic treatment options is essential to support patient-centred care and informed decision-making.

Effectiveness of Providing Information on Antipsychotic Medication to Patients with Psychotic Disorders: An Integrative Review

The aim of this integrative literature review is to describe the information provided to patients with psychotic disorders regarding their medication and to consider the effectiveness of providing such information. Searches of four databases identified 16 articles that met inclusion criteria. Results indicated that patients had relatively poor knowledge about their medications overall. Knowledge about side effects was found to improve significantly following education, with better knowledge leading to positive patient outcomes including increased adherence. Findings offer a comprehensive description of antipsychotic medication information provided to patients and an indication of the positive impact of information provision.

Testing the hypothesis of subtypes of nonadherence in schizophrenia and schizoaffective disorder: A prospective study

BACKGROUND

Nonadherence is a major problem in the treatment of psychotic disorders. It has been hypothesized that nonadherent patients with schizophrenia are not a homogeneous population and subtypes of nonadherence might exist, but this hypothesis has not been specifically tested.

AIM

To test the hypothesis of subtypes of nonadherence in schizophrenia and schizoaffective disorder.

METHODS

This prospective study included 110 consecutively admitted patients diagnosed with schizophrenia or schizoaffective disorder. Assessments were performed at baseline and at 6 mo follow-up after discharge. Sociodemographic, clinical, psychopathological and treatment-related variables were evaluated. Adherence was defined as the concurrence of adherence to antipsychotic treatment and outpatient follow-up during the six-month period. Adherence to antipsychotic treatment was defined as the concurrence of objective and subjective adherence. Sixty-four patients (58%) fulfilled nonadherence criteria at the end of the follow-up period and were categorized according to their subtype of nonadherence.

RESULTS

In nonadherent patients (n = 64), 32 (50%) fulfilled criteria of intentional nonadherence, and 32 (50%) of unintentional nonadherence (UNA). Unintentional nonadherent patients, as compared to intentional nonadherent patients, are characterized by older age, lower educational level, worse cognitive and negative symptoms, greater severity, worse knowledge of their treatment regimen, greater prevalence of supervision of the treatment, lower number of prior hospitalizations and greater use of nonpsychiatric treatment, anticholinergics and hypnotics. Low educational level (OR = 26.1; 95%CI: 2.819-241), worse treatment knowledge at six months (OR per unit = 0.904; 95%CI: 0.853-0.957) and nonpsychiatric treatment at six months (OR = 15.8; 95%CI: 1.790-139) were independently associated to UNA.

CONCLUSION

Differentiated subtypes of nonadherence according to intentionality seem to exist in patients with schizophrenia and schizoaffective disorder. Our findings suggest the need for differentiated approach, both in future research and in clinical practice.

Gap between patients with schizophrenia and their psychiatrists on the needs to psychopharmacological treatment: A cross-sectional study

Aim

Psychopharmacological treatment is indispensable in patients with schizophrenia but data on needs, preferences, and complaints about their medications are limited. Moreover, there has been no study to assess the degree of awareness of their psychiatrists (gap in needs) regarding these issues.

Methods

Ninety‐seven Japanese patients with schizophrenia (ICD‐10) were asked to fill in the questionnaire consisting of multiple‐choice questions regarding (a) their needs and complaints about psychopharmacological treatment that they were receiving, and (b) their preference of dosage form, dosing frequency, and timing of dosing. Additionally, their psychiatrists in charge were asked to predict their patients’ response to the above questions.

Results

Both the most frequently endorsed need and complaints about the current psychopharmacological treatment were “nothing in particular” (n = 14, 16.7% and n = 17, 20.2%); merely 23.1% and 15.4% of their psychiatrists correctly predicted these responses, respectively. “Once a day” (n = 56, 65.1%), “at bedtime” (n = 53, 61.6%), and “tablet” (n = 51, 59.3%) were the patients’ most favorite dosing frequency, timing, and dosage form, respectively; 59.8% (n = 49), 54.9% (n = 45), and 64.6% (n = 53) of their psychiatrists predicted them.

Conclusions

These findings suggest that there is substantial room for improvement on the side of psychiatrists to capture their patients’ needs and complaints about psychopharmacological treatment.

What do patients learn about psychotropic medications on the web? A natural language processing study

BACKGROUND

Low rates of medication adherence remain a major challenge across psychiatry. In part, this likely reflects patient concerns about safety and adverse effects, accurate or otherwise. We therefore sought to characterize online information about common psychiatric medications in terms of positive and negative sentiment.

METHODS

We applied a natural language processing tool to score the sentiment expressed in web search results for 51 psychotropic medications across 3 drug classes (antidepressants, antipsychotics, and mood stabilizers), as a means of seeing if articles referencing these medications were generally positive or generally negative in tone. We compared between medications of the same class, and across medication classes.

RESULTS

Across 12,733 web search results, significant within-class differences in positive (antidepressants: F(24,2682) = 2.97, p < 0.001; antipsychotics: F(16,4029) = 3.25, p < 0.001; mood stabilizers: F(8,2371) = 6.88, p < 0.001) and negative sentiment (antidepressants: F(24,6282) = 11.17, p < 0.001; antipsychotics: F(16, 4029)  = 12.13, p < 0.001; mood stabilizers: F(8, 2371) = 13.28, p < 0.001) were identified. Among these were significantly greater negative sentiment for the antidepressants sertraline, duloxetine, venlafaxine, and paroxetine, and for the antipsychotics, quetiapine and risperidone. Conversely, lithium preparations and valproate exhibited less negative sentiment than other mood stabilizing medications.

LIMITATIONS

While these results provide a novel means of comparing medications, the present analyses cannot be linked to individual patient consumption of this information, or to its influence on their future clinical interactions.

CONCLUSIONS

Overall, a subset of psychotropic medications were associated with significantly more negative sentiment. Characterizing these differences may allow clinicians to anticipate patient willingness to initiate or continue medications.

Drug Attitude, Insight, and Patient's Knowledge About Prescribed Antipsychotics in Schizophrenia: A Cross-Sectional Survey

INTRODUCTION

While patients' perspectives toward pharmacotherapy are expected to be directly influenced by their motivation and understanding of the treatment that they are currently receiving, no study has comprehensively investigated the impact of insight into illness and knowledge for the ongoing pharmacotherapy on the attitude towards drug treatment among patients with schizophrenia.

MATERIALS AND METHODS

One hundred forty-eight Japanese outpatients diagnosed with schizophrenia, according to the International Classification of Diseases 10th edition, were included (mean±SD age, 47.3±12.4 years; 90 men (60.8%)). Attitudes toward antipsychotic treatment and insight into illness were assessed with the Drug Attitude Inventory-10 (DAI-10) and the VAGUS, respectively. In addition, a multiple-choice questionnaire that was designed to examine patients' knowledge about therapeutic effects, types, and implicated neurotransmitters of antipsychotic drugs they were receiving was utilized.

RESULTS

The mean±SD of DAI-10 score was 4.7±4.2. The multiple regression analysis found that lower Positive and Negative Syndrome Scale (PANSS) scores, higher VAGUS scores, and longer illness duration were significantly associated with higher DAI-10 scores (β=-0.226, P=0.009; β=0.250, P=0.008; β=0.203, P=0.034, respectively). There was a significant difference in the DAI-10 scores between the subjects who gave more accurate answers regarding the effects of their primary antipsychotic and those who did not (mean±SD, 5.57±4.38 vs 4.13±4.04, P=0.043); however, this finding failed to survive the multiple regression analysis.

CONCLUSION

Better insight into illness and treatment, lower illness severity, longer illness duration, and possibly greater knowledge about the therapeutic effects of medications may lead to better attitudes towards pharmacotherapy among patients with schizophrenia, which has an important implication for this typically chronic mental condition requiring long-term antipsychotic treatment to sustain stability.

Enabling patients to cope with psychotropic medication in mental health care: Evaluation and reports of the new inventory MedSupport

This cross sectional study examined patients' perceptions of professional support regarding use of psychotropic medication in a specialist mental health care setting. The aims were to evaluate reliability and validity of the MedSupport inventory, and investigate possible associations between MedSupport scores and patient characteristics.A cross-sectional study was performed. The patients completed the MedSupport, a newly developed self-reported 6 item questionnaire on a Likert scale ranged 1 to 5 (1 = strongly disagree to 5 = strongly agree), and the Beliefs about Medicines Questionnaire. Diagnosis and treatment information were obtained at the clinical visits and from patient records.Among the 992 patients recruited, 567 patients (57%) used psychotropic medications, and 514 (91%) of these completed the MedSupport and were included in the study. The MedSupport showed an adequate internal consistency (Cronbach alpha.87; 95% CI.86-89) and a convergent validity toward the available variables. The MedSupport mean score was 3.8 (standard deviation.9, median 3.8). Increasing age and the experience of stronger needs for psychotropic medication were associated with perception of more support to cope with medication, whereas higher concern toward use of psychotropic medication was associated with perception of less support. Patients diagnosed with behavioral and emotional disorders, onset in childhood and adolescence perceived more support than patients with Mood disorders.The MedSupport inventory was suitable for assessing the patients' perceived support from health care service regarding their medication. Awareness of differences in patients' perceptions might enable the service to provide special measures for patients who perceive insufficient medication support.