<b>Adverse Drug Reactions Associated to Medications for Homebound Patients: Observations Based on a Nationwide Survey in Japan</b> / 薬剤疫学

<p><b>Objective: </b>The government has been promoting further contribution to home care by pharmacists since almost all homebound patients are prescribed more than one medicine. However, little information is available on the adverse drug reactions (ADRs) in home care setting. This study was conducted to describe the ADRs reported by pharmacists in home care and examine factors related to their reports.</p><p><b>Design: </b>Questionnaire survey</p><p><b>Methods: </b>We requested patient-visiting pharmacists at community pharmacies throughout Japan to answer questions about their patients. Main questions included patient characteristics, number of drugs taken, presence of ADRs and details, and pharmacists' workload related to home-visiting.</p><p><b>Results: </b>Data on 5,447 patients were collected from 1,890 pharmacies. The percentage of patients in whom the visiting pharmacists found ADRs was 14.4%. ADRs reported in 10 or more cases covered 12 categories, accounting for 85.2% of all ADRs. The top five categories were: dizziness, grogginess, or lightheadedness; gastrointestinal disturbances; clinical test value abnormality; altered mentation; and cutaneous symptoms. In seven of the 12 ADR categories, central nervous system drugs such as sleeping pills, antianxiety drugs, and psychoneurosis drugs were in the top three suspected drugs. Additionally, patients' gender, residential situation, and the number of drugs taken were implied as factors related to ADRs.</p><p><b>Conclusion</b>：Our study indicated that, while the percentage of ADR occurrences in home-visiting service in Japan was at the same level as outpatients in other countries, drugs for the central nervous system accounted for a higher percentage of suspected drugs. Further, occurrence of ADRs was associated with the use of more than 6 concomitant drugs. These results suggest that physicians and pharmacists need to collaborate in decreasing the number and dose of central nervous system drugs.</p>

Examining the Effect of Pharmacists’ Visits to Homebound Patients on the Elimination of Unused Drugs / 医薬品情報学

<b>Objective: </b>To examine the effect of pharmacists’ visits to homebound patients on the elimination of unused drugs.<br><b>Method: </b>We conducted a survey with pharmacies throughout Japan that provided home-visit service, asking them questions regarding their work with up to five patients (the survey period was from January 15 through the end of February, 2013).  Main survey questions were: (1) whether they managed unused drugs since the start of their home-visit, and (2) how they managed the unused drugs.  For (2), we conducted case studies by asking the pharmacists to choose the case that impressed them most and describe the unused drugs involved, actions taken, and the results.<br><b>Results: </b>Data on 5,447 patients were collected from 1,890 pharmacies throughout Japan (collection rate: 56.9%).  Pharmacists managed unused drugs from 2,484 patients (45.6%). 1,746 patients (3,590 cases) were qualified for analysis.  In 2,332 cases (65.0%), pharmacist intervention eliminated the incidences of unused drugs.  In 782 cases (21.8%), unused drugs were discarded, while the number of drug administration days was adjusted in 2,623 cases (73.1%).  In 21 cases (0.6%), drugs were both discarded and had the number of days adjusted.  There were others for 164 cases (4.5%).  The total price of the eliminated unused drugs was approximately 6,920,000 yen (4,000 yen/person).  Illnesses that benefited most from the elimination of unused drugs were chronic respiratory failure (16,306 yen/person), and Parkinson’s disease (4,803 yen/person).<br><b>Conclusion: </b>We confirmed the economic effect of eliminating unused drugs by pharmacists’ home visits.

An Attempt at Objective Evaluation of the Current Situation of Concomitant Drug Use for Dementia Outpatients at Community Pharmacies / 医薬品情報学

<b>Objectives: </b>The objectives of this study are to evaluate the current situation of concomitant drug use by community-dwelling elderly dementia patients, and to extract factors influencing the presence of potentially inappropriate medications (PIMs).<br><b>Method: </b>The research subjects were patients 65 years of age or older for whom concomitant drugs were prescribed on the same prescription form as donepezil hydrochloride.  One hundred and twenty community pharmacies randomly selected from 28 of the 47 prefectures throughout Japan.  Main research topics were sex, age, the clinical department to which the prescribing physician belonged, daily dosage of donepezil, and concomitant drugs.  Concomitant drugs were evaluated using the Beers Criteria: the Japanese Version. Furthermore, to search factors influencing the presence of PIMs, logistic regression analysis was used.<br><b>Results: </b>Data for 335 patients were extracted.  The average number of concomitant drug cases per patient were 4.2 (SD 2.6), and 109 patients (32.5%) were prescribed PIMs.  A logistic regression analysis confirmed that significant factors influencing the presence of PIMs were “the clinical department to which the prescribing physician belonged” (OR 4.80, 95%CI 1.01-22.72), “concomitant drug cases” (OR 1.26, 95%CI 1.13-1.41) and “the presence of concomitant use of central nervous system agents” (OR 5.82, 95%CI 3.35-10.11).<br><b>Conclusion: </b>This study revealed that more than a few cases of community-dwelling elderly patients of dementia were using concomitant drugs with potential risks.  It suggested that influencing factors were “the specialty of the prescribing physician” and “the presence of concomitant use of central nervous system agents.”

A Preliminary Study about the Relationship between Workload and the Outcomes of Community Pharmacists’ Home Visiting Service / 社会薬学

Aim:To examine any relations of workload and outcomes of pharmacists’ home visiting service for medication management and guidance. Survey Target:Managing pharmacists and home-visiting pharmacists from community pharmacies of the Osaka Pharmaceutical Association’s Yao and Toyonaka branches as of March, 2012. Methods:Survey forms regarding drug management and guidance at patients’ homes were mailed, requesting mail or online response. Workload indexes were visit frequency and work time on site. The relation of workload and its outcomes was examined using univariate analysis regarding three items:change in unused medication amount;detection of side effects during visits;change in prescription. SPSS ver. 20 for Windows was used for statistical analysis. Results:90 of 201 pharmacies responded (collection rate 44.8%), and 110 home patients’ data were analyzed. 5-to-15-minute actual work time scored highest (57.4%), followed by less than 5 minutes and 15 to 30 minutes, both at 21.3%. Visit frequency of twice a month scored highest (70.4%), followed by once a week (19.4%), once a month (7.4%), and once in more than one month (2.8%). 5-minute or longer patient visits had a tendency of higher percentage of patients whose unused medication decreased after visits started than less-than-5-minute visits (<i>P</i>=0.072). “Once a week” visits had a tendency of higher percentage of pharmacists detecting side effects than less frequent visits (<i>P</i>=0.061) and changing in prescription (<i>P</i>=0.085). Conclusion:The results above implied the relationship between workload and outcomes incurred by pharmacists’ home visits for medication safety management and guidance.