CIMO - Posters em Encontros Científicos Internacionais
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Browsing CIMO - Posters em Encontros Científicos Internacionais by Subject "Acetylsalicylic acid"
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- Characterization of knowledge and consumption of acetylsalicylic acid in users of community pharmaciesPublication . Pereira, Olívia R.; Barbosa, Patrícia; Gomes, Daniela; Moreira, Inês; Fernandes, AntónioAcetylsalicylic acid (ASA) is one of the drugs most used by the Portuguese population for its anti-inflammatory, analgesic, antipyretic and antiplatelet effect. Thus, this study aimed to characterize the knowledge and the consumption pattern of ASA in users of community pharmacies of three locations in the district of Porto. The investigation was achieved by application of a questionnaire to 390 users of community pharmacies of three locations in the district of Porto (Lousada, Paços de Ferreira e Porto). The dosage of ASA most known and consumed was of 500mg (28.2 and 53%, respectively). Individuals considered having a level of knowledge "Reasonable" about this substance (47.8%). As regards the frequency of use, the most reported by respondents was once per year (48.3%), and time-consuming 1 to 3 days (37.8%). A considerable percentage of respondents indicating that ASA was prescribed by the doctor (36.4%) and on his own initiative (36.4%). The main reasons of use of AAS are flu (41.2%), pain head (40%) and fever (10.7%), have been noted adverse effects in 4.1% of consumers. It was found that the level of knowledge is higher in middle age (40-60 years) (p = 0.220) and in individuals with qualifications of 6-9th year. The present study denotes the existence of gaps of consistent, coherent and updated information about ASA drug.
- Determination of ascorbic acid and acetylsalicylic acid in commercial preparations using an electronic tonguePublication . Pereira, Olívia R.; Gomes, Cláudia; Gonçalves, Cristina; Borlido, Diana; Batista, Marta; Teixeira, Tatiana; Dias, L.G.The electronic tongue is a multi-sensors system used to identify the basic standards of taste, such as sweet, salty, sour and bitter, at levels not detectable by humans. Although the main purpose of electronic tongue is the qualitative analysis, the quantitative analysis of substances in a liquid matrix is also possible, having been the subject of these preliminary studies the application of electronic tongue to pharmaceutical products. In this way, the aim of the current study was the quantitative analysis of ascorbic acid (AA) and acetylsalicylic acid (ASA) in several commercial preparations using an electronic tongue. For that, solutions of standard compounds or of commercial preparations contain ascorbic acid and acetylsalicylic acid were analizes by an electronic tongue. The obtained data were using to determine the concentrations of the solutions thought através do multiple linear regression method. The preliminary tests showed that it is possible to quantify the ascorbic acid in effervescent formulations of vitamin C, using the predictor model obtained by multiple linear regression. In the case of acetylsalicylic acid it was verified that the matrix of the analgesics or antipyretics drugs significantly affect the signs of the electronic tongue. The electronic tongue can be used determined ascorbic acid in effervescent formulations while it is necessary developed more selective sensors to acetylsalicylic acid in order to improve the predictive power of electronic tongue quantification of this compound.