Pharmaceutical Coating Technology (Part 3)

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Pharmaceutical Coating Technology (Part 3)

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The chapter commences with a brief introduction to the technique of sugar coating, which includes a note on the advantages and disadvantages of this method of coating. The various sequential steps involved in sugar coating are covered in some detail, i.e. sealing, subcoating, smoothing, colour coating, polishing and printing. In the section dealing with subcoating several suitable formulations are provided with details regarding application. Traditionally the colour-coating step in sugar coating has received much attention as the aesthetics of this dosage form are most important. Accordingly this section provides considerable depth, including a comparison of previously utilized water-soluble colour systems...

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