Pharmaceutical Interventions on Prescription Problems in a Danish Pharmacy Setting
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Int J Clin Pharm DOI 10.1007/s11096-011-9580-4 RESEARCH ARTICLE Pharmaceutical interventions on prescription problems in a Danish pharmacy setting Anton Pottega˚rd • Jesper Hallas • Jens Søndergaard Received: 29 June 2011 / Accepted: 29 October 2011 Ó Springer Science+Business Media B.V. 2011 Abstract Background International studies regarding (9.4–11.1) interventions per 1,000 prescriptions. Conclusion pharmacists’ interventions towards prescription problems We found an intervention rate substantially higher than produce highly variable results. The only peer-reviewed study reported in previous Danish studies. in a Danish setting estimated an intervention rate of 2.3 per 1,000 prescriptions. With the introduction of a new tool for Keywords Clinical pharmacy Á Denmark Á Pharmacy registration, we hypothesized that a better estimate could be practice Á Primary care Á Problem prescriptions Á obtained. Objective We aimed to produce an up-to-date Pharmacists’ interventions estimate of the extent and type of pharmacists’ interventions towards prescription problems in a Danish pharmacy setting Setting The study was conducted at Copenhagen Sønderbro Impact of findings on practice Pharmacy, a large urban 24-hour pharmacy. Method Data were collected prospectively through an electronic form. All • The number of interventions on prescriptions in Danish interventions were primarily classified as either clinical or community pharmacies, is probably significantly higher administrative in nature, and further classified in a number of than older studies indicated. pre-determined subcategories. Furthermore, information • One third of the interventions in Danish pharmacies are about age, sex, time of day, the wording of the prescription, have a clinical background. the performed intervention, the person performing the inter- • Community pharmacists in Denmark intervene mostly vention and the type of prescriber were recorded. All entries in prescriptions for antibiotics. were manually validated by a study pharmacist. Main out- come measure The intervention rate, given as the number of interventions per 1,000 prescriptions. Results We found 599 Introduction validated interventions. Thirty-two percent of the interven- tions were clinical and 68% administrative by nature. Fifty- The pharmacists’ role in combating adverse drug events was one percent of the administrative and 35% of the clinical first described in 1990 by Hepler and Strand [1], inventing interventions were regarding antibiotics. In the study period, a the patient-centered term ‘‘pharmaceutical care’’ and advo- total of 55,522 prescriptions were filled out together with cating the necessity of an increased focus on pharmacists’ 3,069 dose-dispensing packages, giving a rate of 10.2 impact on the safe and effective use of drugs. Today, phar- macists view their own role as providing risk management information to patients, adding value to patient care beyond A. Pottega˚rd (&) Á J. Hallas Research Unit of Clinical Pharmacology, University of Southern a level that can be provided by a physician alone [2]. Denmark, JB Winsløwsvej 19, 2, 5000 Odense C, Denmark One of the most important and central roles of the com- e-mail: [email protected] munity pharmacist is his/her impact on the prescription process [3], among other things by screening for drug–drug interactions A. Pottega˚rd Á J. Søndergaard Research Unit for General Practice, Institute of Public Health, [4] and intervening on prescription problems [5–12]and University of Southern Denmark, Odense C, Denmark inappropriate use of medicine [9, 13, 14]. Most studies have 123 Int J Clin Pharm been conducted in a hospital setting [15], focusing on pre- pharmacist owns the pharmacy and is financially respon- scription errors, finding prescription error rates varying from sible. At the same time, the state determines the number of 0.3 to 39.1% in hospital in-patients [16]. The high variance is pharmacies and their location. The current regulatory ten- primarily related to differences in study design and definition of dency is to have larger units by shutting down smaller errors [15–17]. In a primary care setting, the focus is most often pharmacies or merging units. The current number of prescription problems [5, 6, 8–10, 13, 14, 18], including all proprietor pharmacists is 235. The current minimum issues necessitating a pharmaceutical intervention, e.g. back- desired threshold is 160,000 filled prescriptions (240,000 ordered medicine (drugs that the supplier cannot retrieve from packages) annually per pharmacy. In Denmark, there are the drug manufacturer). In primary care, the reported inter- currently 318 pharmacies and overall 1,300 pharmacy- ventionrateisalsohighlyvariable,from7to43interventions associated units handing out pharmacy goods. A pharmacy per 1,000 prescriptions [7, 8, 10, 18–20], most likely due to covers in average an area with 17,300 citizens and about varying methodology and definitions of interventions. 600 patients per day. Medicine is dispensed as Original In a Danish primary care setting, only limited evidence Pack dispensing. Roughly half of all prescriptions are exists regarding pharmaceutical interventions on prescription prescribed and dispensed electronically. problems [9]. The most comprehensive work has been non- peer reviewed statements from the Danish Pharmacy Asso- Copenhagen Sønderbro Pharmacy ciation, estimating an intervention rate of 3.3–6.0 per 1,000 prescriptions [21, 22]. It is suspected that these results are Copenhagen Sønderbro Pharmacy is one of the three heavily biased due to lacking registrations of performed largest pharmacies in Denmark with 73 employees in the interventions [9]. A possible explanation is the labour used for main pharmacy and 25 employees in the associated dose- registration, with the pharmacist having to take a copy of the dispensing production unit, producing medicine packages prescription, make a handwritten explanation of the inter- individually packed for each administration time. The vention and storing the registration. This may be regarded as trained employees consist of 17 pharmacists, 41 phar- troublesome by the pharmacy staff. Furthermore, two of the maconomists1 and 13 pharmacist or pharmaconomist stu- three studies [9, 22] used retrospective data collection. The dents. Sønderbro Pharmacy is open day and night and third study [21], although prospective, was still relying on the serves an average of 1,300 patients per day and fills same method for registration. No other means to increase 290,000 prescriptions (440,000 packages) per year. the registration rate was used besides alerting the pharmacies that their registrations would be subject to later analysis. In connection with the introduction of a new tool for the Method registration of interventions, allowing registration of per- formed interventions electronically directly at the counter Data on all interventions were collected prospectively via an after performing an intervention, it was hypothesized that a electronic form readily available on all PCs at the pharmacy, new and more realistic estimate of the intervention rate which was specifically designed for the purpose of this could be obtained, with less bias from underreporting. study. Each pharmacist or pharmaconomist performing an intervention registered the data themselves, also categoriz- ing the given intervention. All interventions were primarily Aim of the study classified as either clinical or administrative by nature, and further classified in a number of pre-arranged sub-catego- In an effort to describe the role of the community pharmacies in ries. Furthermore, information about age, sex, time of day, the Danish health care sector, we aimed to produce an up-to- the wording of the prescription, the performed intervention, date estimate of the extent and type of pharmaceutical inter- the person performing the intervention and the type of pre- ventions on prescription problems in a Danish pharmacy setting. scriber was recorded. All entries were manually validated by a study pharmacist (AP) to ensure data quality and consis- tency in the classification of interventions. Classification Methods with respect to anatomical-chemical-therapeutic (ATC) code [23] was done retrospectively. To exemplify the data Setting material, a list of examples of interventions from each cat- Structure of the pharmacy sector in Denmark Although in its essence private, the Danish pharmacy 1 A pharmaconomist is equivalent to a pharmacy technician but with sector is subject to strict state regulation. The proprietor a substantially longer education (3 years). 123 Int J Clin Pharm egory was generated (‘‘Appendix 1’’), together with a list of selected potentially important clinical interventions (‘‘Appendix 2’’). Before the study period, examples of registrations that the staff failed to register were collected to be used as teaching material. These examples were used during the first 2 weeks of the study period where a study pharmacist reminded the staff how to use the system correctly. Fur- thermore, visual reminders were put up in the pharmacy, reminding the staff that all performed interventions should be registered. Only interventions with some sort of bearing on the patient were included. As an example, missing information on the indication for treatment was only registered when the patient was not aware of the prescriber’s intention. Fig. 1 The rate of interventions, given as the number of interventions per 1,000 prescriptions, divided by gender and whether the interven- When deciding