Prescrição farmacêutica: uma revisão sobre percepções e atitudes de pacientes, farmacêuticos e outros interessados / Pharmacist prescribing: a review of perceptions and attitudes of patients, pharmacists and other interested professionals

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.

High-risk pregnancy: characterization of medication use profile and association with clinical and sociodemographic factors / Gestação de alto risco: caracterização do perfil de utilização de medicamentos e associação com fatores clínicos e sociodemográficos

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.

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.

Perception of pharmacists regarding human resources, training, and development of a national hospital pharmacy: a preliminary report on Basel Statements

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.

Pharmacists in dispensing drugs (PharmDisp): protocol for a clinical trial to test the effectiveness of distance education in training pharmacists for dispensing drugs

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.

Cost-effectiveness of insulin analogs from the perspective of the Brazilian public health system

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.

Adherence and/or discontinuation of imatinib mesylate in patients with chronic myeloid leukemia

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.

Dificuldades de acesso aos serviços farmacêuticos pelos idosos / Access barriers to pharmaceutical services among the elderly

Analisar o acesso dos idosos aos serviços de assistência farmacêutica oferecidos pelo Sistema Único de Saúde no município de Ribeirão Preto - SP, Brasil, bem como seus conhecimentos sobre a forma correta de uso dos medicamentos prescritos, Estudo transversal realizado com idosos de idade igual ou superior a 60 anos, os quais retiravam seus medicamentos em uma farmácia pública do município de Ribeirão Preto - SP, Um formulário padronizado foi utilizado para a coleta de dados que aconteceu entre novembro de 2008 e maio de 2009, Foram entrevistados 1000 idosos, dos quais menos da metade (46,8%) conseguiram todos os medicamentos contidos na prescrição por meio do Sistema Único de Saúde, Além disso, 31,3% dos sujeitos entrevistados não conseguiram os medicamentos prescritos por falta de pelo menos um deles na lista de medicamentos padronizados do município, Mais de 87,4% dos idosos afirmaram não receber orientações do farmacêutico no momento da dispensação, 37,1% não sabiam a posologia correta dos medicamentos que utilizavam e 62,2% dos idosos entrevistados deixaram de utilizar os medicamentos prescritos alguma vez ao longo do tratamento, Ressalta-se que 15,8% dos entrevistados possuíam plano de saúde privado, As dificuldades de acesso e a falta de conhecimento dos idosos sobre a posologia dos medicamentos prescritos evidenciam as deficiências com relação à assistência farmacêutica oferecida no sistema público de saúde de Ribeirão Preto - SP...

The aim of this study was to analyze the access to pharmaceutical services by the elderly provided by the Unified Health System in the municipality of Ribeirão Preto - SP, Brazil, as well as their knowledge about the correct form of using the prescribed medication. A crosssectional study was performed with elderly patients aged 60 years and older in the moment that they withdrawal their medications at a public pharmacy in the municipality of Ribeirão Preto - SP. A standardized form was used for data collection performed between November 2008 and May 2009. We interviewed 1000 elderly, of which less than half (46.8%) acquired all the medications contained in the prescription through the Unified Health System. In addition, 31.3% of the interviewees did not acquired the prescribed medication by a lack of at least one medication in the standardized list of the municipality. More than 87.4% of the elderly claimed they did not receive guidance from the pharmacist in the moment of drug dispensing, 37.1% reported a lack of knowledge of the correct dosage form of the medications used and 62,2% of the elderly interviewed stopped using the prescribed medication once during the treatment period. It is noteworthy that 15.8% of the respondents have also private health insurance. Access barriers to prescribed medication and the lack of knowledge about the dosage highlight deficiencies with respect to pharmaceutical services offered by the Unified Health System of Ribeirão Preto - SP...

Bothrops snake venoms and their isolated toxins, an L-amino acid oxidase and a serine protease, modulate human complement system pathways

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.(AU)

Bothrops snake venoms and their isolated toxins, an L-amino acid oxidase and a serine protease, modulate human complement system pathways

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 g/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 g/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 g/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.

Pharmacoepidemiological profile and polypharmacy indicators in elderly outpatients

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.

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.

Efeito de diferentes tipos de exercício físico sobre o estresse oxidativo e parâmetros bioquímicos no plasma de mulheres após a menopausa / Different exercise approaches on the oxidative stress and biochemical markers of women plasma after menopause

O objetivo deste trabalho foi comparar o efeito da realização do exercício de força (EF) e de atividades físicas variadas (AFV) sobre parâmetros bioquímicos de rotina, peroxidação lipídica,oxidação de proteínas a atividade das enzimas antioxidantes,superóxido dismutase (SOD), glutationa peroxidase (GPx), catalase de enzimas antioxidantes no plasma de mulheres após a menopausa. A população estudada compreendeu 25 mulheres, com idade entre 55 e 75 anos. Um grupo realizou EF a 50 do índice de repetições máximas e o outro grupo realizou exercícios a 50 da freqüência cardíaca máxima, 3 vezes por semana, durante 4 semanas. Os níveis de triglicerídeos diminuíram nos dois grupos. No grupo AFV as concentrações de proteínas totais e de creatininadiminuíram. A peroxidação lipídica, a oxidação de proteínas e a atividade de SOD aumentaram. No grupo EF, as atividades de SOD e de GPx aumentaram. Não houve alteração na peroxidação lipídica e na oxidação protéica. Sugerimos que o protocolo de EF adotado, seria mais indicado para a população idosa, por reduzir os níveis de triglicerídeos e estimular a atividade de enzimas antioxidantes sem alterar os marcadores de estresse oxidativo no plasma.