Controlled release dosage form

Details Controlled release dosage form Controlled release dosage form

1988-11-04

1990-10-16

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

424462, 424493, 424494, 424495, 424497, 427 3, A61K 962

Patent

active

049633651

ABSTRACT:
A controlled release dosage form which consists essentially of a core containing a medicament; an inner coating layer composed of ethylcellulose and a hydrophobic substance; and an outer coating layer containing a medicament are disclosed. Said dosage form shows rapid increase in blood concentration of the medicament and at the same time maintains the high level of the blood concentration over a prolonged period time.

REFERENCES:
patent: 2921883 (1960-01-01), Reese et al.
patent: 2928770 (1960-03-01), Bardani
patent: 3492397 (1970-01-01), Peters et al.
patent: 4390406 (1982-01-01), Guley et al.
patent: 4600645 (1986-07-01), Ghebre-Sellassie et al.
patent: 4681755 (1987-07-01), Colombo et al.
patent: 4780318 (1988-10-01), Applgren et al.
patent: 4795644 (1989-01-01), Zentner
patent: 4842867 (1989-06-01), Ayer et al.
patent: 4851228 (1989-07-01), Zentner et al.

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