Prolonged release microcapsules

Details Prolonged release microcapsules Prolonged release microcapsules

1987-09-30

1990-04-17

Terapane, John F.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Implant or insert

424500, 424433, 424497, 424499, 4284022, 514 2, 514800, 514843, 514963, A61K 952, B01J 1302, A61F 200

Patent

active

049178938

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: 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: 4234571 (1980-11-01), Nestor et al.
patent: 4272398 (1981-06-01), Jaffe
patent: 4273920 (1981-06-01), Nevin
patent: 4652441 (1987-03-01), Okada et al.
"Microcapsules Containing an Enzyme", Journal of the Chemical Society of Japan, vol. 72, pp. 493-499, (1969).
Chang, "Biodegradable Semipermeable Microcapsules Containing Enzymes, Hormones, Vaccines, and Other Biologicals", Journal of Bioengineering, vol. 1, pp. 25-32, (1976).
General Rules for Preparations, The Pharmacopoeia of Japan, Tenth Edition (1981) English Version: Society of Japanese Pharmacopoeia, (1982).
Microcapsule, Industrial Technology Library 25, pp. 102-103 (1971).
Japanese Patent Application Publication No. 13703/1967, Shizuo Miyano, et al. (Fuji Photo Film).

Affiliated with

Also associated with

Rating

Prolonged release microcapsules does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prolonged release microcapsules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prolonged release microcapsules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1051454