Application Note: Metered Dry Powder Addition For Continuous And Batch Coating Processes

Coated tablets are defined as tablets covered with one or more layers of various substances such as resins, gums, inactive and insoluable fillers, sugars, plasticizers, waxes, authorized coloring materials, and sometimes flavors. Tablet coating processes can be subdivided into different types. Sugar coating, for example provides a combination of insulation, taste masking, smoothing of the tablet core, coloring and modified release. Film coating, on the other hand, is usually a single stage process and easily adaptable for controlled release dosage forms.

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