Predicting drug absorption: how nature made it a difficult problem.
J Pharmacol Exp Ther
; 303(3): 889-95, 2002 Dec.
Article
en En
| MEDLINE
| ID: mdl-12438506
ABSTRACT
Significant recent work has focused on predicting drug absorption from structure. Several misperceptions regarding the nature of absorption seem to be common. Among these is that intestinal absorption, permeability, fraction absorbed, and, in some cases, even bioavailability, are equivalent properties and can be used interchangeably. A second common misperception is that absorption, permeability, etc. are discrete, fundamental properties of the molecule and can be predicted solely from some structural representation of the drug. In reality, drug absorption is a complex process dependent upon drug properties such as solubility and permeability, formulation factors, and physiological variables, including regional permeability differences, pH, lumenal and mucosal enzymology, and intestinal motility, among others. This article will explore the influence of these different variables on drug absorption and the implications with regards to attempting to develop predictive drug absorption algorithms.
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Banco de datos:
MEDLINE
Asunto principal:
Preparaciones Farmacéuticas
/
Absorción Intestinal
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
J Pharmacol Exp Ther
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos