Resumo A prescrição farmacêutica avança no mundo, com diferentes países regulando a prática. No Brasil, essa regulação ocorreu em 2013, porém são escassas as informações sobre sua inserção no cotidiano do exercício farmacêutico. Este estudo objetivou analisar a prescrição farmacêutica no município de Vitória-ES, Brasil, e os fatores que influenciam na adesão da prática. Trata-se de um estudo qualitativo com 20 farmacêuticos e 10 gestores de farmácias comunitárias públicas e privadas, realizado a partir de entrevistas, com posterior análise de conteúdo temática para apreender percepções e opiniões. Os farmacêuticos desta pesquisa não prescreviam. Farmacêuticos e gestores identificaram facilitadores para a implementação da atividade, com destaque para os fatores: infraestrutura; fácil acesso ao farmacêutico; e boa receptividade à prescrição. Como barreiras, os fatores foram: número insuficiente de recursos humanos; falta de estímulo institucional à prescrição; e fatores individuais. Além da observação da não execução da prescrição farmacêutica, este estudo trouxe uma oportunidade para identificar elementos que podem estar contribuindo para que o exercício dessa atividade não seja realizado nas farmácias comunitárias. Adaptar rotinas ou contratar pessoal se mostraram as principais modificações necessárias. Paralelamente, ações destinadas a qualificar a formação por meio da educação permanente também se apresentam como necessárias.

Abstract Pharmacist prescribing advances in the world with different countries regulating this activity. In Brazil, this regulation took place in 2013, but there is little information about its insertion in the routine of pharmacist practice. This study aimed to analyze the pharmacist prescribing in the city of Vitória, Espírito Santo state, Brazil, and the factors that influence adherence to the practice. This is a qualitative study based on interviews with 20 pharmacists and 10 managers of public and private community drugstores with subsequent content analysis to apprehend perceptions and opinions. The pharmacists in this research did not prescribe. Pharmacists and managers identified facilitators for the implementation of the activity, highlighting the following factors: infrastructure; easy access to the pharmacist; and good receptivity to the prescription. As barriers, the factors were insufficient number of human resources; lack of institutional stimulus to prescribing; and individual factors. In addition to the observation of non-execution of pharmacist prescribing, this study provided an opportunity to identify elements that may contribute to the non-existence of this activity in community drugstores. Adapting routines or hiring staff were the main necessary changes. At the same time, actions aimed at qualifying training through permanent education are also necessary.

Abstract Pharmacist prescribing advances in the world with different countries regulating this activity. In Brazil, this regulation took place in 2013, but there is little information about its insertion in the routine of pharmacist practice. This study aimed to analyze the pharmacist prescribing in the city of Vitória, Espírito Santo state, Brazil, and the factors that influence adherence to the practice. This is a qualitative study based on interviews with 20 pharmacists and 10 managers of public and private community drugstores with subsequent content analysis to apprehend perceptions and opinions. The pharmacists in this research did not prescribe. Pharmacists and managers identified facilitators for the implementation of the activity, highlighting the following factors: infrastructure; easy access to the pharmacist; and good receptivity to the prescription. As barriers, the factors were insufficient number of human resources; lack of institutional stimulus to prescribing; and individual factors. In addition to the observation of non-execution of pharmacist prescribing, this study provided an opportunity to identify elements that may contribute to the non-existence of this activity in community drugstores. Adapting routines or hiring staff were the main necessary changes. At the same time, actions aimed at qualifying training through permanent education are also necessary. Brazil 2013 practice Vitória state 2 1 opinions prescribe infrastructure prescription barriers resources nonexecution non execution nonexistence existence changes time 201

Resumo A prescrição farmacêutica avança no mundo, com diferentes países regulando a prática. No Brasil, essa regulação ocorreu em 2013, porém são escassas as informações sobre sua inserção no cotidiano do exercício farmacêutico. Este estudo objetivou analisar a prescrição farmacêutica no município de Vitória-ES, Brasil, e os fatores que influenciam na adesão da prática. Trata-se de um estudo qualitativo com 20 farmacêuticos e 10 gestores de farmácias comunitárias públicas e privadas, realizado a partir de entrevistas, com posterior análise de conteúdo temática para apreender percepções e opiniões. Os farmacêuticos desta pesquisa não prescreviam. Farmacêuticos e gestores identificaram facilitadores para a implementação da atividade, com destaque para os fatores: infraestrutura; fácil acesso ao farmacêutico; e boa receptividade à prescrição. Como barreiras, os fatores foram: número insuficiente de recursos humanos; falta de estímulo institucional à prescrição; e fatores individuais. Além da observação da não execução da prescrição farmacêutica, este estudo trouxe uma oportunidade para identificar elementos que podem estar contribuindo para que o exercício dessa atividade não seja realizado nas farmácias comunitárias. Adaptar rotinas ou contratar pessoal se mostraram as principais modificações necessárias. Paralelamente, ações destinadas a qualificar a formação por meio da educação permanente também se apresentam como necessárias. mundo prática Brasil 2013 farmacêutico VitóriaES, VitóriaES Vitória ES, ES Vitória-ES Tratase Trata 2 1 privadas entrevistas opiniões prescreviam infraestrutura barreiras foram humanos individuais necessárias Paralelamente 201

RESUMO Este estudo teve como objetivo construir e validar o Modelo Lógico (ML) da prescrição farmacêutica no Brasil. Caracteriza-se como um estudo de avaliabilidade, com utilização de técnicas quantiqualitativas. Para a construção da primeira versão do ML, utilizaram-se informações disponibilizadas em documentos oficiais, literatura científica e informantes-chave. Para validação, empregou-se a técnica de Delphi, com 19 especialistas que analisaram a pertinência e a relevância dos itens propostos, no período entre março e outubro de 2022. O ML apresentou, ao final, oito itens do elemento estrutura, 13 itens do elemento atividades, oito itens do elemento resultados intermediários e quatro itens do elemento impacto. Da versão original à final, houve relativamente poucas modificações realizadas a partir da contribuição dos especialistas, resultado dos altos níveis de consenso alcançados nas análises de pertinência e relevância. O ML validado apresenta plausibilidade de execução nas relações estabelecidas entre os elementos de atividades e de resultados, identificação da essencialidade no campo da estrutura e vislumbre dos resultados de sua execução em longo prazo, que incluem a promoção do uso racional de medicamentos, a expansão da atividade do farmacêutico no cuidado à saúde, melhoria da qualidade de vida do paciente e racionalização de custos ao Sistema Único de Saúde. (ML Brasil Caracterizase Caracteriza se avaliabilidade quantiqualitativas utilizaramse utilizaram oficiais informanteschave. informanteschave informantes chave. chave informantes-chave validação empregouse empregou Delphi 1 propostos 2022 apresentou final impacto prazo medicamentos saúde Saúde 202 20 2

ABSTRACT This study aimed to build and validate the Logical Model (LM) of pharmacist prescribing in Brazil. It is characterized as an evaluability study, using quantitative and qualitative techniques. To construct the first version of the LM, information made available by official documents, scientific literature and key informants was used. For validation, the Delphi technique was used, with 19 experts who analyzed the pertinence and relevance of the proposed items, in the period between March and October 2022. The LM presented, in the end, eight items from the structure element, 13 items from the activities element, eight items from the intermediate results element and four items from the impact element. From the original to the final version, there were relatively few modifications made based on the contributions of experts, a result of the high levels of consensus achieved in the pertinence and relevance analyses. The validated LM presents plausibility of execution in the relationships established between the elements of activities and results, identification of the essentiality in the field of structure and a glimpse of the results of its long-term execution, which include the promotion of the rational use of medicines, the expansion of the pharmacist’s activity in health care, improving the patient’s quality of life and rationalizing costs for the Unified Health System. (LM Brazil techniques documents used validation 1 2022 presented end analyses longterm long term medicines pharmacists s care patients patient System 202 20 2

RESUMO Este estudo teve como objetivo construir e validar o Modelo Lógico (ML) da prescrição farmacêutica no Brasil. Caracteriza-se como um estudo de avaliabilidade, com utilização de técnicas quantiqualitativas. Para a construção da primeira versão do ML, utilizaram-se informações disponibilizadas em documentos oficiais, literatura científica e informantes-chave. Para validação, empregou-se a técnica de Delphi, com 19 especialistas que analisaram a pertinência e a relevância dos itens propostos, no período entre março e outubro de 2022. O ML apresentou, ao final, oito itens do elemento estrutura, 13 itens do elemento atividades, oito itens do elemento resultados intermediários e quatro itens do elemento impacto. Da versão original à final, houve relativamente poucas modificações realizadas a partir da contribuição dos especialistas, resultado dos altos níveis de consenso alcançados nas análises de pertinência e relevância. O ML validado apresenta plausibilidade de execução nas relações estabelecidas entre os elementos de atividades e de resultados, identificação da essencialidade no campo da estrutura e vislumbre dos resultados de sua execução em longo prazo, que incluem a promoção do uso racional de medicamentos, a expansão da atividade do farmacêutico no cuidado à saúde, melhoria da qualidade de vida do paciente e racionalização de custos ao Sistema Único de Saúde.

ABSTRACT This study aimed to build and validate the Logical Model (LM) of pharmacist prescribing in Brazil. It is characterized as an evaluability study, using quantitative and qualitative techniques. To construct the first version of the LM, information made available by official documents, scientific literature and key informants was used. For validation, the Delphi technique was used, with 19 experts who analyzed the pertinence and relevance of the proposed items, in the period between March and October 2022. The LM presented, in the end, eight items from the structure element, 13 items from the activities element, eight items from the intermediate results element and four items from the impact element. From the original to the final version, there were relatively few modifications made based on the contributions of experts, a result of the high levels of consensus achieved in the pertinence and relevance analyses. The validated LM presents plausibility of execution in the relationships established between the elements of activities and results, identification of the essentiality in the field of structure and a glimpse of the results of its long-term execution, which include the promotion of the rational use of medicines, the expansion of the pharmacist’s activity in health care, improving the patient’s quality of life and rationalizing costs for the Unified Health System.

Resumo A prescrição farmacêutica é uma experiência em expansão em alguns países desenvolvidos, com diferentes sistemas de saúde. Conhecer a contribuição que essa atividade pode desempenhar no processo de assistência à saúde e investigar sua aceitação é de fundamental interesse para os países que a regularam. Este estudo de revisão de literatura, portanto, objetivou desenhar o estado da arte da investigação acadêmica sobre percepção, opiniões e atitudes no contexto da prática da prescrição farmacêutica em países que a adotaram. Para isso, realizou-se investigação nas bases de dados MEDLINE, Scopus, Embase, SciELO e LILACS, resultando na seleção de 17 estudos. Da análise dos artigos, emergiram três categorias de discussão: “compreensão da prática e benefícios percebidos”; “aceitação e adesão à prática”; “barreiras à prática”. Os resultados mostraram aceitação e percepções variáveis nos diferentes públicos, dependendo, entre outras questões, do nível de conhecimento e experiência dos pacientes e dos profissionais de saúde, do perfil do farmacêutico ou da modalidade de prescrição. Este estudo aponta alguns desafios envolvidos na prática da prescrição farmacêutica e seus achados podem ser úteis para sugerir caminhos para o fortalecimento da prática.

Abstract Pharmacist prescribing is a growing reality in some developed counties, with varied health systems. Understanding the contribution that this activity can offer in the healthcare process, and investigating its acceptance is of utmost importance for the countries that implement and regulate this type of system. This literature review aimed to design a state-of-the-art academic investigation on the perception, opinions, and attitudes in the context of pharmacist prescribing practices in countries that have adopted this system. To achieve this, the present study conducted an investigation of the Medline, Scopus, Embase, SciELO, and Lilacs databases, resulting in the selection of 17 studies. From the analysis of the articles, three categories of discussion arose: “understanding of the practice and perceived benefits”, “acceptance and adherence to the practice, and “hindrances to the practice”. The results showed varied acceptance and perceptions among the different publics, depending, among other questions, on the level of knowledge and experience of the patients and health professionals, on the profile of the pharmacists, or on the prescribing modality. This study highlights some challenges involved in the practice of pharmacist prescribing, and its findings can be useful in suggesting a means through which to strengthen the practice.

Abstract Pharmacist prescribing is a growing reality in some developed counties, with varied health systems. Understanding the contribution that this activity can offer in the healthcare process, and investigating its acceptance is of utmost importance for the countries that implement and regulate this type of system. This literature review aimed to design a state-of-the-art academic investigation on the perception, opinions, and attitudes in the context of pharmacist prescribing practices in countries that have adopted this system. To achieve this, the present study conducted an investigation of the Medline, Scopus, Embase, SciELO, and Lilacs databases, resulting in the selection of 17 studies. From the analysis of the articles, three categories of discussion arose: “understanding of the practice and perceived benefits”, “acceptance and adherence to the practice, and “hindrances to the practice”. The results showed varied acceptance and perceptions among the different publics, depending, among other questions, on the level of knowledge and experience of the patients and health professionals, on the profile of the pharmacists, or on the prescribing modality. This study highlights some challenges involved in the practice of pharmacist prescribing, and its findings can be useful in suggesting a means through which to strengthen the practice.

Resumo A prescrição farmacêutica é uma experiência em expansão em alguns países desenvolvidos, com diferentes sistemas de saúde. Conhecer a contribuição que essa atividade pode desempenhar no processo de assistência à saúde e investigar sua aceitação é de fundamental interesse para os países que a regularam. Este estudo de revisão de literatura, portanto, objetivou desenhar o estado da arte da investigação acadêmica sobre percepção, opiniões e atitudes no contexto da prática da prescrição farmacêutica em países que a adotaram. Para isso, realizou-se investigação nas bases de dados MEDLINE, Scopus, Embase, SciELO e LILACS, resultando na seleção de 17 estudos. Da análise dos artigos, emergiram três categorias de discussão: “compreensão da prática e benefícios percebidos”; “aceitação e adesão à prática”; “barreiras à prática”. Os resultados mostraram aceitação e percepções variáveis nos diferentes públicos, dependendo, entre outras questões, do nível de conhecimento e experiência dos pacientes e dos profissionais de saúde, do perfil do farmacêutico ou da modalidade de prescrição. Este estudo aponta alguns desafios envolvidos na prática da prescrição farmacêutica e seus achados podem ser úteis para sugerir caminhos para o fortalecimento da prática.

Resumo Objetivos: descrever o perfil de utilização de medicamentos e de adesão, e a associação com as características clínicas e sociodemográficas de gestantes de alto risco atendidas em um hospital universitário. Métodos: trata-se de um estudo transversal com dados coletados mediante um questionário estruturado aplicado à 386 gestantes. Resultados: a maior parte das participantes era acompanhada apenas pelo ginecologista (75,1%), iniciou o pré-natal no primeiro trimestre gestacional (86,8%), não planejou a gravidez (61,9%) e realizou em média 8,2 (DP=4,4) consultas de pré-natal. Os diagnósticos mais frequentes foram hipertensão arterial (20,5%) e diabetes mellitus (19,7%). A prevalência de uso de medicamentos foi 99,7%, com média de 5,1 (DP=2,1) medicamentos por mulher e 12,7% de automedicação. Os antianêmicos (88,9%) e analgésicos (63,2%) foram as classes farmacológicas mais prevalentes e 17,9% das gestantes referiram uso de fármacos com risco gestacional relevante. Apenas 36,5% das gestantes foram consideradas aderentes ao tratamento, 32,9% declararam desconhecer a indicação dos medicamentos em uso e 42% não receberam orientações sobre o uso de medicamentos durante a gestação. Não há evidências de associação entre o número de medicamentos utilizados e os aspectos clínicos e sociodemográficos. Conclusão: é necessário desenvolver estratégias para melhorar o atendimento desta população e o uso racional de medicamentos, com ênfase no fortalecimento do cuidado multiprofssional.

Abstract Objectives: describe the profile of medication use and adherence, and the association with clinical and sociodemographic characteristics of high-risk pregnant women attended at a university hospital. Methods: cross-sectional study with data collected through a questionnaire applied on 386 pregnant women. Results: most participants were seen only by the gynecologist (75.1%), started prenatal in the first gestational trimester (86.8%), did not plan the pregnancy (61.9%), and performed an average of 8.2 (SD=4.4) prenatal consultations. The most frequent diagnoses were arterial hypertension (20.5%) and diabetes mellitus (19.7%). Prevalence of medication use was 99.7%, with an average of 5.1 (SD=2.1) medication per woman and 12.7% self-medication. Antianemics (88.9%) and analgesics (63.2%) were the most prevalent classes and 17.9% of the women reported the use of medication with significant gestational risk. Only 36.5% were considered adherent, 32.9% declared they were unaware of the indication of the medication in use and 42% did not receive guidance on the use of the medication during pregnancy. There is no evidence of association between the number of the medication used and clinical and sociodemographic aspects. Conclusions: there is a need to develop strategies to improve the care of this population, with emphasis on strengthening multi-professional care.

Abstract The hospital pharmacy needs a constant process of evaluation and monitoring of its activities. In Brazil, several agencies establish tasks and duties for pharmacists, but little is known about the compliance and the perception of the professional regarding these policies. The present study aims to characterize the pharmacist’s perception of Brazilian hospital pharmacy policies according to the Basel Statements. A search was performed for the contacts of all medium and high complexity hospitals in the country. Subsequently, a questionnaire elaborated following the Basel Statements was sent by e-mail to hospital pharmacists throughout the country. The domain analyzed was "Human Resources, Training, and Development". Statistical analyses were performed using SPSS 19.0. Pharmacists representing a total of 111 hospitals from all Brazilian regions answered the survey questionnaire and showed that more than half of the hospital pharmacists perceive themselves as not complying, whether in the service of local, national, or pharmaceutical education. Besides updating the professionals in relation to national policies, it is necessary that the representative bodies of the pharmaceutical class be more present in the elaboration and evaluation of the policies directed to human resources, seeking uniformity and the possibility of carrying out the activities required.

ABSTRACT Dispensing drug is a moment in which the pharmacist is able to analyze pharmacotherapy and contribute to its rational use. However, research has shown that some pharmacists lack adequate knowledge to perform this service. This study aims to describe a research protocol for a clinical trial to test the effectiveness of a distance learning program to train pharmacists in dispensing drugs. This is a protocol for an open diagnostic, non-randomized, single group clinical trial. A 12-week duration distance learning course was structured on the Moodle platform for training community pharmacists who are registered in the Regional Board of Pharmacy and work as employees or owners in Brazilian community pharmacies. The course curricula involves concepts and practice of dispensing drugs applied to the treatment of hypertension, diabetes mellitus, dyslipidemia and asthma. Pharmacists are divided randomly into groups, to which previously selected tutors give directions to the discussion and clarify questions. A validated questionnaire is being used before and after the course to measure participants’ knowledge. Participant satisfaction with the course is also being measured. Pharmacists who work in the study headquarters municipality receive two visits from a mystery shopper, before and after the course, to evaluate their performance in dispensing drugs. The virtual platform and the content of the course material were evaluated by judges. The study has been approved by the Research Ethics Committee of the School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo. The sample size was estimated to provide desired power for testing the significance of the difference between baseline-to-endpoint change scores. Information about the course is being released through channels such as social networks. The results will be submitted for publication in scientific journals, but information enabling the identification of the study subjects will be kept confidential. The trial has been registered in The Brazilian Clinical Trials Registry with number RBR7mbrp3 on January 15th, 2015.

ABSTRACT Human insulin is provided by the Brazilian Public Health System (BPHS) for the treatment of diabetes, however, legal proceedings to acquire insulin analogs have burdened the BPHS health system. The aim of this study was to perform a cost-effectiveness analysis to compare insulin analogs and human insulins. This is a pharmacoeconomic study of cost-effectiveness. The direct medical cost related to insulin extracted from the Ministry of Health drug price list was considered. The clinical results, i.e. reduction in glycated hemoglobin (HbA1c), were extracted by meta-analysis. Different scenarios were structured to measure the uncertainties regarding the costs and reduction in HbA1c. Decision tree was developed for sensitivity of Incremental Cost Effectiveness Ratio (ICER). A total of fifteen scenarios were structured. Given the best-case scenario for the insulin analogs, the insulins aspart, lispro, glargine and detemir showed an ICER of R$ 1,768.59; R$ 3,308.54; R$ 11,718.75 and R$ 2,685.22, respectively. In all scenarios in which the minimum effectiveness was proposed, lispro, glargine and detemir were dominant strategies. Sensitivity analysis showed that the aspart had R$ 3,066.98 [95 % CI: 2339.22; 4418.53] and detemir had R$ 6,163.97 [95% CI: 3919.29; 11401.57] for incremental costs. We concluded there was evidence that the insulin aspart is the most cost-effective.

ABSTRACT Adherence to imatinib mesylate improves clinical outcomes and promotes a reduction in health expenditure. However, treatment duration and lack of efficacy decrease adherence to pharmacotherapy, resulting in increased mortality associated with Chronic Myeloid Leukemia. This study aimed to evaluate and compare adherence and/or discontinuation of imatinib mesylate in different studies from the literature. An integrative review of original articles published between the years of 2004 and 2014 was performed using the databases PubMed/MEDLINE, Scopus and SciELO. The descriptor "imatinib" was used in two combinations employing the connector AND between terms: "medication adherence'' AND ''imatinib" AND "leukemia'' and ''patient compliance'' AND "imatinib" AND "leukemia". We identified 476 studies, being 14 included in the study. The rates of adherence and discontinuation were diverse, ranging from 19.0 to 97.0% and from 1.8 and 41.0%, respectively, and a high number of longitudinal studies was observed (71.4%). Most studies used questionnaires as an indirect method to assess adherence and factors related to poor adherence were adverse drug reactions, dose changes and unavailability of the medication. Patient education associated with follow up by pharmacists and other health professionals can improve patient adherence and minimize the pharmacotherapy discontinuation.

Background Activation of the complement system plays an important role in the regulation of immune and inflammatory reactions, and contributes to inflammatory responses triggered by envenomation provoked byBothrops snakes. The present study aimed to assess whether Bothrops jararacussuand Bothrops pirajai crude venoms and their isolated toxins, namely serine protease (BjussuSP-I) and L-amino acid oxidase (BpirLAAO-I), modulate human complement system pathways.Methods Lyophilized venom and toxin samples solubilized in phosphate buffered saline were diluted in appropriate buffers to evaluate their hemolytic activity on the alternative and classical pathways of the complement system. Venom- and toxin-treated normal human serum was added to the erythrocyte suspension, and the kinetic of hemolysis was measured spectrophotometrically at 700 nm. The kinetic 96-well microassay format was used for this purpose. We determined the t ½values (time required to lyse 50 % of target erythrocytes), which were employed to calculate the percentage of inhibition of the hemolytic activity promoted by each sample concentration. To confirm complement system activation, complement-dependent human neutrophil migration was examined using the Boyden chamber model.Results At the highest concentration tested (120 μg/mL), B. jararacussu and B. pirajai crude venoms inhibited the hemolytic activity of the classical pathway (65.3 % and 72.4 %, respectively) more strongly than they suppressed the hemolytic activity of the alternative pathway (14.2 and 13.6 %, respectively). BjussuSP-I (20 μg/mL) did not affect the hemolytic activity of the classical pathway, but slightly decreased the hemolytic activity of the alternative pathway (13.4 %). BpirLAAO-I (50 μg/mL) inhibited 24.3 and 12.4 % of the hemolytic activity of the classical and alternative pathways, respectively. Normal human serum treated with B. jararacussu and B. pirajai crude venoms induced human neutrophil migration at a level similar to that induced by zymosan-activated normal human serum.Conclusion Together, the results of the kinetics of hemolysis and the neutrophil chemotaxis assay suggest that pre-activation of the complement system byB. jararacussu and B. pirajai crude venoms consumes complement components and generates the chemotactic factors C3a and C5a. The kinetic microassay described herein is useful to assess the effect of venoms and toxins on the hemolytic activity of the complement system.

Este estudo transversal foi realizado por meio de entrevistas com 1000 idosos atendidos em uma Unidade Básica Distrital de Saúde (UBDS) do Sistema Único de Saúde (SUS) no município de Ribeirão Preto. Analisou-se o perfil clínico, socioeconômico e farmacoepidemiológico a fim de identificar os fatores associados à polifarmácia nessa população. Utilizou-se um modelo binomial negativo truncado para análise da associação da polifarmácia com as variáveis independentes do estudo. O software SAS foi utilizado para a análise estatística. O nível de significância adotado foi de 0,05. Os fármacos com maior prevalência de uso foram do sistema cardiovascular (83,4%). Observou-se média de, aproximadamente, sete fármacos por paciente e 47,9% dos entrevistados usavam >7 fármacos. As variáveis que apresentaram associação com a polifarmácia (p< 0,01) foram: mulheres, idade (>75 anos), automedicação, quantidade de problemas de saúde, número de consultas médicas, uso de medicamentos isentos de prescrição médica, uso de psicotrópicos, não realização de exercícios físicos e uso de adoçante. A exposição a todos esses fatores justifica a alta prevalência de polifarmácia entre os entrevistados. Os resultados mostraram a necessidade de adotar medidas de intervenção clínica e educacional e gerencial para analisar e promover a racionalização do uso de fármacos entre os idosos usuários do SUS.

This cross-sectional study was carried out with 1000 elderly outpatients assisted by a Basic Health District Unit (UBDS) from the Brazilian Public Health System (SUS) in the municipality of Ribeirão Preto. We analyzed the clinical, socioeconomic and pharmacoepidemiological profile of the elderly patients in order to identify factors associated with polypharmacy amongst this population. We used a truncated negative binomial model to examine the association of polypharmacy with the independent variables of the study. The software SAS was used for the statistical analysis and the significance level adopted was 0.05. The most prevalent drugs were those for the cardiovascular system (83.4%). There was a mean use of seven drugs per patient and 47.9% of the interviewees used >7 drugs. The variables that showed association with polypharmacy (P value < 0.01) were female gender, age >75 years, self-medication, number of health problems, number of medical appointments, presence of adverse drug events, use of over-the-counter drugs, use of psychotropic drugs, lack of physical exercise and use of sweeteners. The exposition to all these factors justified the high prevalence of polypharmacy amongst the interviewees. These results showed the need to adopt clinical intervention and educational and managerial measures to analyze and promote rationality in the use of drugs amongst the elderly users of SUS.