Abstract
It is well known that certain medications suffer hepatic first-pass metabolism or deteriorate in the digestive system, the buccal drug delivery method may be an alternative to oral administration. Because it is painless and may be swiftly and readily removed if the treatment must be terminated or interrupted, the buccal mucosa has long been ideal for administering medications. This paper focuses on the buccal drug delivery system had the goal of gathering recent literature and presenting a concise explanation of buccal patches by discussing the characteristics of an ideal mucoadhesive system, benefits of buccal delivery and disadvantages thereof, factors affecting buccal absorption, and various types of patches as well as the preparation method and composition thereof. The compilation of the data is also enhanced by adding market products as well as the patented, so that reader will get the complete knowledge about the buccal drug delivery.
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