FARMACOCINETICA FARMACODINAMIA · FARMACOCINETICA FARMACODINAMIA Author: antonio bandillo torres...
Transcript of FARMACOCINETICA FARMACODINAMIA · FARMACOCINETICA FARMACODINAMIA Author: antonio bandillo torres...
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FARMACOCINETICA
FARMACODINAMIA
DR JOSE ANTONIO BANDILLO TORRES
URGENCIAS MEDICO QUIRURGICAS
TOXICOLOGIA CLINICA
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FARMACOCINETICA
DINAMICAS DE ABSORCION
DISTRIBUCION
ELIMINACION DE FARMACOS
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FARMACOCINETICA
Para producir sus efectos característicos un fármaco debe alcanzar concentraciones adecuadas en los sitios donde actúa
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FARMACOCINETICA
Las concentraciones del fármaco activo (libre) alcanzadas , a pesar de que están en función de la dosis del producto administrado, depende también de la magnitud y la rapidez de su absorción , distribución (que expresa la unión a proteínas y tejidos) metabolismo (biotransformación ) y excreción .
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FARMACOCINETICA
ADME
ADMINISTRACION
DISTRIBUCION
METABOLISMO
ELIMINACION
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FARMACOCINETICA
SITIOS DE ACCION RECEPTORES
DEPOSITOS TISULARES
CIRCULACION GENERAL
FARMACO LIBRE FARMACO LIGADO
METABOLITOS
ABSORCION BIOTRANSFORMACION EXCRESION
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FARMACOCINETICA
MEMBRANAS CELULARES
Están formadas por una doble bicapa de lípidos.
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FARMACOCINETICA
Las proteínas de las membranas que están dentro de la bicapa sirven como receptores , canales de iones o transportadores para estimular “vias de señales “ electricas o quimicas y constituir blancos selectivos para la accion de medicamentos
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FARMACOCINETICA
Transporte pasivo
Penetra el medicamento por medio de difusión pasiva contra un gradiente de concentración gracias a la solubilidad de la bicapa de lípido
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FARMACOCINETICA
Directamente proporcional a la magnitud del gradiente de concentración a uno y del otro lado de la membrana
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FARMACOCINETICA
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FARMACOCINETICA
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FARMACOCINETICA
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