Tue, 19 Dec 2017

Buccal Patches: Boon To Oral Drug Delivery System

 

Sanket Sharma*1, R. Yogananda1

1.Department of Pharmaceutics, SJM College of Pharmacy, Chitradurga, Karnataka, India


 

ABSTRACT

Buccal administration of drug provides a convenient route of administration for both systemic and local drug actions. The preferred site for retentive oral transmucosal delivery systems and for sustained and controlled release delivery device is the buccal mucosa. Rapid developments in the field of molecular biology and gene technology resulted in generation of many macromolecular drugs including peptides, proteins, polysaccharides and nucleic acids in great number possessing superior pharmacological efficacy with site specificity and devoid of untoward and toxic effects. However, the main impediment for the oral delivery of such drugs as potential therapeutic agents is their extensive presystemic metabolism, instability in acidic environment resulting into inadequate and erratic oral absorption. Direct access to the systemic circulation through the internal jugular vein bypasses drug from the hepatic first pass metabolism leading to high bioavailability. The objective of this article is to review the developments in buccal adhesive drug delivery system as patches.

Keywords: Buccal mucosa, buccal patches, mucoadhesion, permeation.


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