Drug actions can be improved by developing new drug delivery systems, such as the mucoadhesive system. These systems remain in close contact with the absorption tissue, the mucous membrane, releasing, the drug at the action site leading to a bioavailability increase and both local and systemic effects. Mucoadhesion is currently explained by six theories: electronic, adsorption, wettability, diffusion. fracture and mechanical. Several in vitro and in vivo methodologies arc proposed for studying its mechanisms. However, mucoadhesion is not yet well understood. The aim of this study was to review the mechanisms and theories involved in mucoadhesion, as well as to describe the most-used methodologies and polymers in mucoadhesive drug delivery systems.
机构:
Univ Estadual Maringa, Lab Res & Dev Drug Delivery Syst, Grad Program Pharmaceut Sci, BR-87020900 Maringa, Parana, BrazilUniv Estadual Maringa, Dept Pharm, Lab Res & Dev Drug Delivery Syst, Grad Program Pharmaceut Sci, BR-87020900 Maringa, Parana, Brazil
de Araujo Pereira, Raphaela Regina
Bruschi, Marcos Luciano
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Univ Estadual Maringa, Dept Pharm, Lab Res & Dev Drug Delivery Syst, Grad Program Pharmaceut Sci, BR-87020900 Maringa, Parana, BrazilUniv Estadual Maringa, Dept Pharm, Lab Res & Dev Drug Delivery Syst, Grad Program Pharmaceut Sci, BR-87020900 Maringa, Parana, Brazil