[Do patients understand their prescribed antibiotic treatments?]

[Level of knowledge of antibiotics prescribed in outpatients]

INTRODUCTION

The lack of patient knowledge about their medication is considered to be one of the main reasons for an inappropriate use.

OBJECTIVE

This study the level of knowledge in patients about their prescribed antibiotic, and describes some of the factors related to this.

DESIGN

A cross-sectional, descriptive and observational study with an analytical component. SITE: A community pharmacy in Murcia.

METHODS

The study form was offered to all customers who arrived to obtain antibiotics while the study was taking place. A validated form was used to determined the level of knowledge was a validated form.

RESULTS

A total of 126 patients, most of them women, with an average age of 44.6 years were included. Half of the study population had no knowledge which could ensure the correct use of the antibiotic they were taking. The «process of use» of the medication was the best known dimension by the study population, followed by the «therapeutic aim». The dimension related to the «safety» of the medication was the one with the lowest values. After a logistic regression, a link between the knowledge of the antibiotic and the «know the name of the antibiotic» (p=.05; r=2.15) and the «number of antibiotic the patient takes» (p=.02; r=0.30) variables.

CONCLUSIONS

The results show that there is a certain lack of information on the use of antibiotics by the study sample. Thes results could help to show the way to follow in future studies, targeted to meet the need of information.

[Patient's understanding of information on antiretroviral therapy: an application of the latent trait model]

The aim of this study was to develop a score to determine the level of understanding regarding information on antiretroviral therapy (ART) among patients initiating treatment. This was a cross-sectional analysis based on interviews with HIV patients in outpatient public referral centers (Belo Horizonte, Minas Gerais State, Brazil). The score for patients' understanding of their medicines was obtained using a latent trait model, estimated by the Item Response Theory, based on the concordance between each patient answer and the written prescription. Hierarchical linear regression was used to assess patients' global understanding of ART, considering each class of drugs (level 1) and the individual (level 2). Among 406 patients, 37.9% failed to reach a minimum level of understanding of their treatment. The item with the highest level of difficulty was "precaution in use". The item "dosage" showed the most varied understanding of ART. A high proportion of patients displayed minimal understanding of ART, indicating a high potential risk for non-adherence to therapy. It is thus necessary to identify factors associated with insufficient understanding of ART.

[Evaluation of the pilot program of medicine dispensation in customized doses in Galicia [Spain]]

OBJECTIVE

To quantify, from an economic perspective, the results of the Pilot Program of Dispensation of Medicines in Unitary Dose in Galicia, Spain.

PATIENTS AND METHODS

Retrospective study from 35,923 antibiotic prescriptions in customized doses corresponding to 5 active principles (amoxicillin, amoxicilin/clavulanic, claritromicin, cefuroxima axetil and ciprofloxacin). The program, which worked during 12 months, included 292 physicians from 46 units of primary care of the Galician Health Service and 167 offices of pharmacy.

RESULTS

60.57% of the prescribed treatments did not adjust exactly to the conventional presentations existing in the market. Savings in units of antibiotic of the dispensation in customized doses compared with the conventional one has been of 14.32%. Registered economic saving has been of 29.94%. The inclusion of 2 new presentations in amoxiciline and amoxiciline/clavulanic (of 15 and 21 tablets) and of one in the other 3 (cefuroxime and ciprofloxacin of 14 tablets and clarithromycin of 16) would avoid 86.5% of the leftover units without having to implement individualized dispensation.

CONCLUSIONS

An important antibiotic stock is being generated in home medicine cabinets as a result of the leftovers of prescribed treatments that in the case of Galicia are equivalent to more than 1,800,000 doses of antibiotic in 2004. This problem could be reduced with the dispensation in customized dose and partially with new presentations.