Physician strategies for addressing patient adherence to prescribed psychotropic medications in Japan: a qualitative study

Health care providers' perspectives of medication adherence in the treatment of depression: a qualitative study

PURPOSE

Non-adherence to antidepressant medications is a significant barrier to the successful treatment of depression. The purpose of this study was to explore the perspectives of health care providers on antidepressant medication non-adherence in clinical practice.

METHODS

Individual semi-structured interviews were conducted with a purposive sample of 31 health care providers from a range of disciplines and settings in the state of New South Wales, Australia. Interviews focused on medication adherence issues in depression and participants' strategies in addressing them. Interviews were audio recorded, transcribed verbatim and thematically content analyzed using a constant comparison approach.

RESULTS

Participants acknowledged medication non-adherence to be a complex problem in depression, and attributed this problem to patient, medication and environmental-specific issues. Five approaches in addressing non-adherence were reported: patient education, building partnerships with patients, pharmacological management, developing behavioural skills and building supportive networks. Challenges to the management of non-adherence were lack of time and skills, assessment of medication adherence, transition period immediately post-discharge and conflicts in views between providers.

CONCLUSION

Participants were able to identify issues and strategies in addressing antidepressant non-adherence; however, barriers were also identified that could impact on providers' ability to address this issue effectively. More research is needed to develop effective multidisciplinary strategies that take into account providers' perspectives in improving adherence to antidepressant medications.

Psychotropic prescription practices in east Asia: looking back and peering ahead

PURPOSE OF REVIEW

The present review focuses on the pharmacoepidemiological issues of psychotropic drug use in countries within east Asia, with special emphasis on antipsychotic, antidepressant and benzodiazepine prescriptions. Pharmacogenetic studies in different ethnic groups are also reviewed.

RECENT FINDINGS

Recent studies have revealed the prevalence of antipsychotic polytherapy (defined as the use of more than one antipsychotic; up to 45.7%), less conservative antipsychotic use (defined as the use of more than 1000 mg/day chlorpromazine equivalents; up to 17.9%) and depot antipsychotic use (up to 15.3%) in different populations in east Asia. Clozapine is commonly prescribed (up to 60%) in China. There is a trend of increasing second-generation antipsychotic use in east Asian countries. Up to 67.5% of patients received newer antidepressants such as selective serotonin reuptake inhibitors. Benzodiazepine medications are used in up to 29.9% of study populations. Socioeconomic factors appear to be one of the major common factors that affect the prescription of antipsychotics and newer antidepressants. Pharmacogenetic factors associated with antipsychotic response, weight gain and extrapyramidal side effects have been examined. Treatment adherence and pharmacoeconomic factors are relatively understudied.

SUMMARY

Future studies on prescribing trends of antipsychotics and antidepressants need to focus on children, adolescent and elderly patient populations, the impact of changing prescription trends and the long-term effects on patients and their caregivers, as well as pharmacogenetic factors, which can potentially pave the way for better and more individualized prescription of psychotropic drugs in east Asia.