Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Patent
1987-02-24
1988-09-06
Rosenbaum, C. Fred
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
424473, A61M 3100
Patent
active
047690275
ABSTRACT:
Prills of pharmaceutically acceptable material are coated first with a water-permeable polymeric matrix containing a water-soluble pharmaceutically beneficial agent and then overcoated with a water-permeable film containing dispersed therein a water-soluble, particulate pore-forming material.
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patent: 3577512 (1971-05-01), Shepherd et al.
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 4455143 (1984-06-01), Theeuwes et al.
patent: 4576604 (1986-03-01), Guittard et al.
patent: 4586922 (1986-05-01), Theeuwes et al.
Baker Richard W.
Brooke James W.
Smith Kelly L.
Brown Donald
Burroughs Wellcome Co.
Kartchner Gene B.
Rosenbaum C. Fred
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