| 摘要 |
Non gelatin film materials, e.g. hydroxy propyl methyl cellulose comprise e.g. an additive or additives such as an organic acid, e.g. hydroxy carboxylic acid, which form a barrier composition. The resultant films are safe human consumption and find use as a wall material of an ingestible delivery capsule, e.g. containing a dose of a pharmaceutical preparation.
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