Comprehensive Review on tablet Coating, Formulation, Process, Evaluation and Industrial Significance

Atablet is defined as a solid unit dosage form. There arevarious reasonsfor coating of solid dosage formthe very important reason is to control the drug release rate and also to control bioavailability parameters of the APIs (Active pharmaceutical ingredients) Tablet coating is a process of applying a thin polymer based filmcoatedfor various advantages, Coating solution can be spread through the spraying systems over the surface of tablets to improve itsappearance, stability, taste and performance of tablets. Tablet coating have different types like sugar coating, film coating , enteric coating, specialized coatings etc. Coatings allow modified drug release and patient acceptability, improve the therapeutic activity. The present review summarizes the objectives, defects, evaluation parameters, and recent trends in tablet coating technology.