Method for producing microcapsule

Details Method for producing microcapsule Method for producing microcapsule

1996-02-20

1997-05-20

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Capsules

424452, 424486, 424489, 424423, 424425, 424497, 42840221, 42840224, 514777, 514952, 514963, 514965, 514 2, A61K 914, A61K 950, A61K 952

Patent

active

056310218

ABSTRACT:
A microcapsule produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing said water-soluble drug and a drug retaining substance therefor and an oil layer containing a polymer substance, then thickening or solidifying said inner aqueous layer to a viscosity of not lower than about 5000 centiposes and finally subjecting the resulting emulsion to in water drying gives prolonged release of water-soluble drug.

REFERENCES:
patent: 3092553 (1963-06-01), Fisher, Jr. et al.
patent: 3523906 (1970-08-01), Vrancken et al.
patent: 3645911 (1972-02-01), van Besauw et al.
patent: 3691090 (1972-09-01), Kitajima et al.
patent: 3773919 (1973-11-01), Boswell et al.
patent: 3882228 (1975-05-01), Boncey et al.
patent: 3922338 (1975-11-01), Estevenal et al.
patent: 4234571 (1980-11-01), Nestor et al.
patent: 4272398 (1981-06-01), Jaffe
patent: 4273920 (1981-06-01), Nevin
patent: 4389330 (1983-06-01), Tice et al.
patent: 4555399 (1985-11-01), Hsiao
patent: 4622244 (1986-11-01), Lapka et al.
patent: 4637905 (1987-01-01), Gardner
patent: 4652441 (1987-03-01), Okada et al.
patent: 4675189 (1987-06-01), Kent et al.
patent: 4710384 (1987-12-01), Rotman
patent: 4711782 (1987-12-01), Okada et al.
patent: 4767628 (1988-08-01), Hutchinson
patent: 4849228 (1989-07-01), Yamamoto et al.
patent: 4917893 (1990-04-01), Okada et al.
patent: 5330767 (1994-07-01), Yamamoto et al.
patent: 5476663 (1995-12-01), Okada et al.
Microcapsule, Industrial Technology Library 25, pp. 102-103 (1971).
Journal of Bioengineering, vol. 1, pp. 25-32 (1976).
Journal of the Chemical Society of Japan, vol. 72, pp. 493-499 (1969).
The Pharmacopoeia of Japan, 10th Edition, 1981, English version, Society of Japanese Pharmacopoeia, Yakuji Nippo, Ltd., 1982, pp. 16-21.

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