Tablet Coating Technology:An Overview

Tablet coatings must be stable and strong enough to survive the handling of the tablet. Modern tablet coatings are polymer and polysaccharide based with plasticizers and pigments included. Coatings are necessary for tablets that have an unpleasant taste, and a smoother finish makes large tablets easier to swallow, extend the shelf-life of components, controlled release, bioadhesive and sustained drug release. We were reviewed here pharmaceutical coating process, type of coatings, stability testing, quality control and advanced coating technology. This review concluded on Coating enhances the quality of products and controls the bioavailability of the drug which provides physical protection to facilitate handling. This includes minimizing dust generation in subsequent unit operations.