Estudio galénico de distintas formulaciones de ácido acetilsalicílico
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Publication date
2002
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10/07/1992
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Universidad Complutense de Madrid, Servicio de Publicaciones
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Abstract
El objeto de la presente memoria para optar al grado de doctor en farmacia, se centra en el estudio de distintas formulaciones de comprimidos de ácido acetil salicílico con tres acciones diferentes; analgésica, antirreumática y antitrombótica. Para ello se estudian distintos métodos analíticos de ácido acetil salicílico y ácido salicílico, seleccionando, según el tipo de ensayo, el método analítico más adecuado. En los estudios farmacotécnicos se evalúan unas 40 formulaciones, principalmente sus características de compresibilidad y de velocidad de disolución "in vitro", y se comparan con distintas especialidades farmacéuticas comercializadas. Se realiza un estudio de estabilidad química de alguna de estas formulaciones. en los estudios de gastrotoxicidad se evalúa la influencia del tamaño de partícula, velocidad de cesión y el uso de algunas sustancias gastroprotectoras. Por último, se seleccionan seis formulaciones de las que se estudia su biodisponibilidad relativa y su posible correlación "vitro-vivo"
The object of this report to qualify for the degree of doctor of pharmacy, focuses on the study of different formulations of acetylsalicylic acid tablets with three different actions; analgesic, antirheumatic and antithrombotic. For this, different analytical methods of acetylsalicylic acid and salicylic acid are studied, selecting, according to the type of test, the most appropriate analytical method. In the pharmaceutical studies, some 40 formulations are evaluated, mainly their compressibility and dissolution rate characteristics "in vitro", and they are compared with different commercialized pharmaceutical specialties. A chemical stability study of any of these formulations is carried out. In the studies of gastrotoxicity, the influence of particle size, release rate and the use of some gastroprotective substances is evaluated. Finally, six formulations are selected from which their relative bioavailability and their possible "vitro-live" correlation are studied.
The object of this report to qualify for the degree of doctor of pharmacy, focuses on the study of different formulations of acetylsalicylic acid tablets with three different actions; analgesic, antirheumatic and antithrombotic. For this, different analytical methods of acetylsalicylic acid and salicylic acid are studied, selecting, according to the type of test, the most appropriate analytical method. In the pharmaceutical studies, some 40 formulations are evaluated, mainly their compressibility and dissolution rate characteristics "in vitro", and they are compared with different commercialized pharmaceutical specialties. A chemical stability study of any of these formulations is carried out. In the studies of gastrotoxicity, the influence of particle size, release rate and the use of some gastroprotective substances is evaluated. Finally, six formulations are selected from which their relative bioavailability and their possible "vitro-live" correlation are studied.
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Tesis de la Universidad Complutense de Madrid, Facultad de Farmacia, Departamento de Farmacia y Tecnología Farmacéutica I, leída el 10-07-1992