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片制包衣一般湏药片达到一定数量方可进行,例如用滚转法包衣每锅至少需要五万片以上,(按基片重0.3g左右和锅■为76cm者计),数量再少即难以进行;即使免强得包,所得片剂衣层的緻密度、细腻度、平滑光亮度及色调等质量指标也难以合格。然而在生产实践中却经常遇到少量片剂的包衣问题。例如,于一些主药成分得量甚低或产量极少的片剂包衣。再如一些试制
Film-coated general 湏 reached a certain number of tablets before they can be carried out, for example, with the roll method of coating each pot requires at least 50,000 or more (according to the substrate weight of about 0.3g and pot ■ is 76cm), the number of less That is difficult to carry out; even if the package is not strong, the resultant tablet coating density, sophistication, smoothness and color tone and other quality indicators are difficult to pass. However, in the production practice, it often encounters the problem of coating a small amount of tablets. For example, in some of the main drug ingredients very low yield or very little tablet coating. Another example is some trial