Internal standard for amorphous pharmaceuticals products quantification and an application of Parametric Rietveld refinement using time, temperature and relative humidity as 'non-crystallographic' parameters

Pós-graduação em Química - IQ

Desenvolvimento, otimização e caracterização física de um novo sistema multi-sensores de Biosusceptometria de Corrente Alternada (BAC) para obtenção de imagens biomagnéticas

A novel AC Biosusceptometry (ACB) system with thirteen sensors it was implemented and characterized in vitro using magnetic phantoms. The system presenting coils in a coaxial arrangement with one pair of excitation coil outside and thirteen pairs of detection coils inside. A first-order gradiometric configuration was utilized for optimal detection of magnetic signals. Several physical parameters such as baseline, number of turns, excitation field and diameters were studied for improvement of the signal/noise ratio. This system exhibits an enhanced sensitivity and spatial resolution, due to the higher density of sensors/area. In the future those characteristics will turn possible to obtain images of magnetic marker or tracer in the gastrointestinal tract focusing on physiological and pharmaceutical studies. ACB emerged due to its interesting nature, noninvasiveness and low cost to investigate gastrointestinal parameters and this system can contribute for more accurate interpretation of biomedical signals and images

Desenvolvimento e validação de uma técnica quantitativa de análise de imagem para avaliação do teste do cometa corado pela prata

The comet assay is a method of DNA damage analysis widely used to quantify oxidative damage, crosslinks of DNA, apoptosis and genotoxicity of chemicals substances as chemical, pharmaceuticals, agrochemicals products, among others. This technique is suitable to detect DNA strand breaks, alkali-labile sites and incomplete excision repair sites and is based on the migration of DNA fragments by microeletroforesis, DNA migrates for the anode forming a “tail”, and the formed image has the appearance of a comet. The slides can be stained with fluorescence or silver, having differences in the microscopy type used for the analysis and the possibility of storage of the slides, moreover, the first one is a stained-method with more difficulties of accomplishment. The image analysis can be performed by a visual way, however, there is a disadvantage as the subjectivity on the results, that can be minimized by an automated method of digital analysis. This process was studied in this report with the aim to perceive the validation of the digital analysis turning it a quantitative method with larger reproductibility, minimizing the variability and imprecision due to the subjective analysis. For this validation we selected 50 comets photographed in a standardized way and printed, afterwards, pictures were submitted to three experienced appraisers, who quantified them manually. Later, the images were processed by free software ImageJ 1.38x, printed and quantified manually by the same appraisers. The intraclass correlation was higher to comet measures after image processing. Following, an algorithm of automated digital analysis from the measures of the comet was developed; the values obtained were compared with those 12 estimated manually after the processing resulting high correlation among the measures. The use of image analysis systems increases ...(Complete abstract click electronic access below)

Avaliação da qualidade de comprimidos de captopril 50 mg comercializados no Brasil

O captopril foi o primeiro agente desenvolvido para o tratamento da hipertensão, doença que acomete grande parte da população adulta mundial, a qual requer cuidados especiais quanto à farmacoterapia e ajuste de doses. Assim sendo, este trabalho tem como objetivo avaliar a qualidade de comprimidos de captopril 50 mg comercializados no Brasil através da realização da equivalência farmacêutica entre duas marcas de comprimidos não revestidos de captopril 50 mg (um genérico G e um similar S) em relação ao medicamento referência (R) Capoten® Bristol Myers Squibb 50 mg, utilizando os requisitos descritos na monografia individual do fármaco da Farmacopeia Brasileira e da Farmacopeia Americana. Medicamentos referência são produtos inovadores, cuja eficácia, segurança e qualidade foram comprovadas cientificamente; os chamados similares são os que contêm as mesmas substâncias ativas, mesma concentração, forma farmacêutica, via de administração, posologia e indicação terapêutica do medicamento de referência e são identificados por nome comercial ou por sua marca; os medicamentos genéricos são intercambiáveis com o produto referência e, geralmente, são produzido após a expiração ou renúncia da proteção patentária do mesmo, ele deve ser designado pela DCB (Denominação Comum Brasileira) ou, na ausência desta, pela DCI (Denominação Comum Internacional). Os dois medicamentos analisados, medicamento similar e medicamento genérico, apresentaram resultados satisfatórios quanto à determinação de peso médio, resistência mecânica e tempo de desintegração dos comprimidos, identificação, doseamento, limite de dissulfeto de captopril, uniformidade de doses unitárias, teste de dissolução e perfil de dissolução do fármaco, com relação ao seu medicamento referência correspondente, ou seja, estes são equivalentes farmacêuticos e apresentam qualidade... (Resumo completo, clicar acesso eletrônico abaixo)

Diagnóstico dos resíduos de serviços de saúde do grupo B gerados no município de Uberaba (MG)

The present work aimed to quantify the generation of group B health care`s residuals in places such as drugstores and pharmacies, in the municipality of Uberaba, MG, Brazil, as well as to identify their final destination in those places during the months of July and September, 2010. In order to also verify the medicaments generated by the whole community, some delivery campaigns were arranged to capture out-of-date medicaments at 3 drugstores. In this sense, all people who effectively looked for a pharmacy/drugstore to deposit the medicaments were invited to respond some questions, containing information about the name of the medicament, the pharmaceutical composition, the color applicable to the medicament and the expiration date. At the end of the period of research, 76 interviews were performed and 90 medicaments were observed (1.18 products per interview, in average). Results obtained suggested that pharmacies/drugstores located downtown tend to generate more medicaments than others located in the districts and periphery zones. Moreover, manipulation drugstores tend to generate more products than their conventional counterparts. Regarding the therapeutic classes, the anti-hypertensive medicaments represented the most substantial percentage of the medicaments delivered, accounting for 21,11%. However, the worst scenario tends to show that people usually do not know exactly how to discard this sort of product – about 65% of the people consulted discard chemical pharmaceutical residuals in the same place the domestic trash is thrown away – what may represent a serious risk in terms of contamination of the environment, so that a strong campaign towards the proper usage and discharge of medicaments should be strongly encouraged

Tomografia por Biosusceptometria de Corrente Alternada (tBAC): desenvolvimento, caracterização, implementação

The Biosusceptometry AC (BAC) is a research tool that has been extensively explored by the group Biomagnetism IBB-UNESP for monitoring of the gastrointestinal tract, its response to a known drug or in vivo performance of solid dosage forms. During this period the BAC, which has the characteristics of high sensitivity and low cost, has been developed primarily for recording signals contraction of activity and traffic human gastrointestinal tract. With the possibility of producing images with this instrumentation, it was possible to evaluate different situations in vitro and in vivo for physiological studies and pharmaceuticals. Considering the good performance of this system to produce planar images, the first aim of the BAC system tomography (TBAC) was to evaluate the system performance of BAC to produce tomographic images of phantoms ferromagnetic for a single channel system. All these applications were only possible because of their sensitivity to materials of high magnetic suscepitibility as ferrite, which allow to produce an electrical signal proportional to the variation of the magnetic flux generated by the presence of magnetic marker next to a first-order gradiometer. Measuring this variation at various points was possible to generate planar images that recently came to be produced in systems with multiple detectors, said multi-channels. From planar images, also producing tomographic images of simulators BAC bars in a system of 13 channels using only the center channel, with good results when applied to simple objects as one and two bars. When testing the resolution of the system with more elaborate forms the quality and resolution of images reconstructed is not satisfactory, which would be solved by increasing the spatial sampling rate and hence the acquisition time. The present system works with an acquisition time of about five hours. Whereas this system will be applied for in vivo experiments, the acquisition time became a ...

Avaliação da qualidade de cápsulas de finasterida manipuladas na Farmácia Escola “Prof. Dr. Antônio Alonso Martinez”

Medicamentos manipulados são preparados nas farmácias ou nos serviços farmacêuticos hospitalares pelo profissional farmacêutico ou sob sua direta responsabilidade, a partir de prescrições médicas ou de fórmulas inscritas no Formulário Nacional ou Formulários Internacionais reconhecidos pela Anvisa. No Brasil, o consumo desses produtos mostra um crescimento importante no cenário da Saúde Pública. A finasterida é um fármaco representativo de uma grande parcela desse mercado por seu fácil acesso e alta eficácia. Contudo, a manipulação deste produto deve ser realizada com bastante cautela, por ser um medicamento de baixa dose. Nesse meio, a Farmácia-Escola “Prof. Dr. Antonio Alonso Martinez” conquista a confiança da população de Araraquara e região há muitos anos. A fim de se fundamentar essa confiança, o presente trabalho tem por objetivo analisar cápsulas de finasterida manipuladas na Farmácia Escola supracitada por Cromatografia Líquida de Alta Eficiência (CLAE), utilizando metodologia devidamente validada. Foram analisados parâmetros como teor e uniformidade de conteúdo das cápsulas, bem como teor da matéria-prima e da mistura de pós destinados ao preenchimento de cápsulas. Os resultados encontrados apresentam-se dentro dos critérios adotados pelas Farmacopeias Americana e Europeia, uma vez que a Farmacopeia Brasileira ainda não tem monografia inscrita da finasterida e dos respectivos medicamentos

Implementação de centros de informação sobre medicamentos no Brasil: importância e desafios

Ante a modernidade, a informação está em toda parte, tornando-se grande o desafio de separar as informações atualizadas das ultrapassadas, as confiáveis das questionáveis e as reais das imaginadas. Em relação aos medicamentos, a despeito dos inegáveis avanços terapêuticos, os produtos farmacêuticos passaram a sofrer uso indiscriminado e irracional. Não se pode negar, que o uso racional de medicamentos implica o conhecimento específico e atualizado sobre os mesmos, como também de profissionais envolvidos e compreensão dos pacientes sobre a importância do tratamento. Na expectativa de se contribuir para dirimir as frequentes dúvidas em relação aos medicamentos, reduzir as ocorrências do surgimento de doenças iatrogênicas e esclarecer ao usuário, conseguindo-se a consciência sobre os riscos da automedicação é que entram em cena os Centros de Informação sobre Medicamentos. Estes são locais, onde se acumulam, organizam, processam, avaliam e se informa sobre medicamentos, com o objetivo de melhorar a saúde. No Brasil, após cerca de 30 anos de experiência em Kentucky, EUA, alguns profissionais e acadêmicos atentaram-se à necessidade e importância da existência de tais Centros. Ante ao exposto, a partir de uma revisão não sistemática da literatura, no presente trabalho foram relatadas a importância, necessidade e desafios para se implementar um Centro de Informação sobre Medicamentos

Perfil da farmacoterapia utilizada por idosos institucionalizados: uma análise dos problemas relacionados ao uso de medicamentos em instituições de longa permanência para idosos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ocorrência de alteradores endócrinos e fármacos nas águas de abastecimento público e ETE, em duas cidades da área de abrangência da UGRHI-21 e 22

Pós-graduação em Química - IQ

A psicopatologização da infância no contemporâneo: um estudo sobre a expansão do diagnóstico de transtorno de déficit de atenção e hiperatividade

The expansion of psychiatric labeling does not reach only the adult population, but also the problematic related to childhood have been captured by the speeches and practices of the medical-psychiatric knowledge and turned into psychopathologies which tend to be treated with the main resource made available by psychiatrics in the present times: the psychotropic drugs. This work presents a critical thinking on the expansion of the diagnoses of “attention deficit disorder and hyperactivity” (ADHD) both in children and teenagers and on the conduction of drug therapies. It follows that the processes of childhood psycho-pathologization and the trivializing of psychotropic drug prescription are related to the overvaluation of the biological conception of psychic suffering and to the economic interests of the great pharmaceutical laboratories which by means of several strategies influence the medical practices, factors that lead to exposure of these patients to possible side effects and the risks of stigmatization that must be considered.

Causes for the underreporting of adverse drug events by health professionals: a systematic review

Objective: Identifying the main causes for underreporting of Adverse Drug Reaction (ADR) by health professionals. Method: A systematic review carried out in the following databases: LILACS, PAHO, SciELO, EMBASE and PubMed in the period between 1992 and 2012. Descriptors were used in the search for articles, and the identified causes of underreporting were analyzed according to the classification of Inman. Results: In total, were identified 149 articles, among which 29 were selected. Most studies were carried out in hospitals (24/29) for physicians (22/29), and pharmacists (10/29). The main causes related to underreporting were ignorance (24/29), insecurity (24/29) and indifference (23/29). Conclusion: The data show the eighth sin in underreporting, which is the lack of training in pharmacovigilance. Therefore, continuing education can increase adherence of professionals to the service and improve knowledge and communication of risks due to drug use.

Farmácia magistral: sua importância e seu perfil de qualidade

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Causes for the underreporting of adverse drug events by health professionals: a systematic review

Objective: Identifying the main causes for underreporting of Adverse Drug Reaction (ADR) by health professionals. Method: A systematic review carried out in the following databases: LILACS, PAHO, SciELO, EMBASE and PubMed in the period between 1992 and 2012. Descriptors were used in the search for articles, and the identified causes of underreporting were analyzed according to the classification of Inman. Results: In total, were identified 149 articles, among which 29 were selected. Most studies were carried out in hospitals (24/29) for physicians (22/29), and pharmacists (10/29). The main causes related to underreporting were ignorance (24/29), insecurity (24/29) and indifference (23/29). Conclusion: The data show the eighth sin in underreporting, which is the lack of training in pharmacovigilance. Therefore, continuing education can increase adherence of professionals to the service and improve knowledge and communication of risks due to drug use.

Método para controle da qualidade de medicamentos sólidos por difração de raios X

Pós-graduação em Química - IQ