Inappropriate use of medicines and associated factors in Brazil : an approach from a national household survey

This article aims to describe the inappropriate use of medicines in the Brazilian urban population and to identify associated factors. We conducted a data analysis of a household survey carried out in Brazil in 2013–14. The sampling plan was done by clusters with representativeness of the urban population and large regions of the country, according to gender and age domains. For this analysis, we considered a sample of adults ( 20 years) who reported having chronic noncommunicable diseases, medical indication for drug treatment and medicine use (n¼12 283). We evaluated the prevalence of inappropriate use in the domains: non-adherence, inappropriate use behaviour and inadequate care with medicines, all verified in the following groups of independent variables: demographic and socio-economic characteristics, health and pharmaceutical care, health status and use of medicines. Crude and adjusted prevalence ratios were obtained using robust Poisson regression. It was found 46.1% of people having at least one behaviour of inappropriate use of medicines. The worst results were found for the domain of inappropriate use behaviour, a situation of 36.6% of the users, which included unauthorized prescriber, inadequate source of information and indication of the medicines by non-authorized prescribers. The best result was found for the lack of medicines care, informed by only 4.6% of users who kept expired drugs at home. The inappropriate use of medicines was associated with gender (female), region of residence (Northeast), not visiting the doctor regularly or visiting more than one doctor, not having free access to medicines and using of five or more medicines. There was a high prevalence of inappropriate use, which was associated with both individual and health system characteristics pointing out the need to set priorities as for health education and public interventions

Predisposing factors to the practice of self-medication in Brazil: Results from the National Survey on Access, Use and Promotion of Rational Use of Medicines (PNAUM)

<div><p>Objective</p><p>To understand the predisposing factors that lead to the practice of self-medication and the factors associated with the use of medicines via self-medication in the adult population of Brazil.</p><p>Methods</p><p>The analyzed data are part of the National Survey on Access, Use and Promotion of Rational Use of Medicines (PNAUM), a survey whose population consisted of individual residents permanently domiciled in urban areas in Brazil. In this work, the data references the 31 573 respondents aged 20 or higher (76.2% of the final PNAUM sample). Poisson regression models with robust variance were used for estimating the independent effect of each variable with medicine use via self-medication.</p><p>Results</p><p>Of the interviewees, 73.6% stated they had used some medication without medical recommendation if they had previously used the same product; 73.8% stated they had used non-prescribed medicine when the medicine was already present at home; and 35.5% stated they had used some non-prescribed medication when they knew someone who had already taken the same medication. The prevalence of self-medication was 18.3%. The variables associated with the highest probability of using medicine via self-medication were: geographic region within Brazil, gender, age group, per capita income, self-assessment of health, self-reported use of previously used non-prescribed medication, and self-reported use of non-prescribed medication when that medication was already present at home.</p><p>Conclusions</p><p>The use of medicines via self-medication in Brazil is relatively frequent and influenced by previous experience and familiarity with the medications, and is more common among women and individuals with low self-assessment of health.</p></div

Barriers to access to medicines for noncommunicable diseases for patients using the Brazilian Unified Health System (SUS)

This paper investigates difficulties related to access to medicines in SUS and factors associated with the inability to obtain medicines in SUS by non-communicable chronic disease (NCCD) patients who used this source for health care. We analyzed data from the National Survey on Access, Use and Promotion of Rational Use of Medicines. First analysis included individuals aged 20 years and over, diagnosed with at least one NCCD, with indication of medicine treatment and follow up of this disease (s) with a physician from SUS, and who reported having obtained some of the medicines in use from the SUS. The difficulties of obtaining medicines from SUS were investigated based on dimensions of access to medicines. Among 5. 155 individuals investigated, 65. 4% were women, 40 years old or older and 54. 3% residents of the Southeast region of Brazil. Aspects related to availability and waiting time to obtain medicines were the most significant reported barriers to access to medicines. Regional differences were found in basically all dimensions of access and the low availability of medicines in SUS pharmacies was the main reason cited for their search in private pharmacies