Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Patent
1991-08-30
1993-12-14
Webman, Edward
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
424495, 428403, 514951, A61K 914
Patent
active
052700569
ABSTRACT:
A particle containing a liquid-soluble active substance for release outside a human or animal body, said particle comprising a core with a coating thereon, said coating comprising a liquid soluble active substance, is characterized in that the core has an appearance differing from the appearance of the coating, and that the appearance of the core is initially concealed by the coating and appears after dissolution of the liquid-soluble active substance, thus indicating that the active substance in said coating has been dissolved. The invention has its foremost application on granules, tablets and similar drug releasing units which make part of a parenteral liquid administration device.
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patent: 3054724 (1962-09-01), Raff
patent: 3922339 (1975-11-01), Shear
patent: 4248857 (1981-07-01), Deneale et al.
patent: 4432966 (1984-02-01), Zeitoun et al.
patent: 4517006 (1985-05-01), Drake et al.
patent: 4764375 (1988-08-01), Paradissis
patent: 4767789 (1988-08-01), Blank et al.
patent: 4927640 (1990-05-01), Dahlinder et al.
Aktiebolaget Hassle
Webman Edward
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