Moisture barrier film coating composition, method, and coated fo

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills

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424461, 424462, 424463, 424476, 424480, 424481, 424482, 424493, 424494, 424496, 424497, 424498, 514770, 5147722, 514778, 514779, 514781, 514782, 514786, 1062101, 1062151, 106243, A61K 932, A61K 934, A61K 936

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058856170

ABSTRACT:
A dry moisture barrier film coating composition for forming a moisture barrier film coating for pharmaceutical tablets and the like comprises polyvinyl alcohol, soya lecithin, and optionally a flow aid, a colorant, and/or a suspending agent. A liquid coating solution or dispersion for forming a moisture barrier film coating for pharmaceutical tablets and the like comprises polyvinyl alcohol, soya lecithin, water, and optionally a flow aid, a colorant, and/or a suspending agent. A method of coating pharmaceutical tablets and the like with a moisture barrier film coating comprises forming a liquid coating solution or dispersion for forming a moisture barrier film coating for pharmaceutical tablets and the like comprising polyvinyl alcohol, soya lecithin, water, and optionally a flow aid, a colorant, and/or a suspending agent, applying the coating solution or dispersion onto the tablets to form a film coating on the tablets, and drying the film coating on the tablets.

REFERENCES:
patent: 3997674 (1976-12-01), Ukai et al.
patent: 4341563 (1982-07-01), Kurihara
patent: 5206030 (1993-04-01), Wheatley
patent: 5393333 (1995-02-01), Trouve
patent: 5411746 (1995-05-01), Signorino

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