Journal
INTERNATIONAL JOURNAL OF PHARMACEUTICS
Volume 358, Issue 1-2, Pages 16-22Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijpharm.2008.03.028
Keywords
dry coating; powder coating; solid pharmaceutical dosage form; plasticizer; electrostatic coating
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Dry coating is a coating technology for solid pharmaceutical dosage forms derived from powder coating of metals. In this technology, powdered coating materials are directly coated onto solid dosage forms without using any solvent, and then heated and cured to form a coat. As a result, this technology can overcome such disadvantages caused by solvents in conventional liquid coating as serious air pollution, high time- and energy-consumption and expensive operation cost encountered by liquid coating. Several dry coating technologies, including plasticizer-dry-coating, electrostatic-dry-coating, heat-dry-coating and plasticizer-electrostatic-heat-dry-coating have been developed and extensively reported. This mini-review summarized the fundamental principles and coating processes of various dry coating technologies, and thoroughly analyzed their advantages and disadvantages as well as commercialization potentials. (C) 2008 Elsevier B.V. All rights reserved.
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