Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Patent
1996-11-21
1999-01-19
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
424482, 424474, A61K 932, A61K 936
Patent
active
058611738
ABSTRACT:
This invention provides a long-lasting release solid nifedipine preparation which exhibits clinically sufficient effect when administered once per day. A press coated tablet whose core and shell each contains nifedipine, the dissolution rate of nifedipine from said tablet being (a) in the dissolution test using a sinker according to method 2 of the dissolution test method as prescribed by the Pharmacopoeia of Japan, after 2 hours 10-40% after 4 hours 30-65% after 6 hours at least 55%, and (b) in the dissolution test according to the disintegration test method as prescribed by the Pharmacopoeia of Japan, after 3 hours 20-45% after 4 hours 30-65%.
REFERENCES:
patent: 4892741 (1990-01-01), Ohm et al.
patent: 4933186 (1990-06-01), Ohm et al.
patent: 4966772 (1990-10-01), Ohm et al.
English language abstract of JP 40-14446 (1984).
English language abstract of JP 04-11699 (1994).
Kanasaki Haruo
Kuratani Kenji
Luchtenberg Helmut
Nishioka Takaaki
Ohm Andreas
Bayer Aktiengesellschaft
Page Thurman K.
Spear James M.
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