Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2005-02-08
2005-02-08
Spear, James M. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S490000
Reexamination Certificate
active
06852337
ABSTRACT:
The invention relates to a process for the preparation of fast-dissolving pharmaceutical preparations from difficultly soluble active substances, wherein an aqueous suspension is made from the active substance and one or more water-soluble adjuvants and then the resulting aqueous suspension is processed, with removal of the water, by methods conventional per se, to form solid pharmaceutical preparations. The invention also relates to fast-dissolving pharmaceutical preparations of active substances having a dissolution rate of at least 70% after 30 minutes, prepared in accordance with the process of the invention.
REFERENCES:
patent: 4601895 (1986-07-01), Streuff et al.
patent: 5643591 (1997-07-01), Mehra et al.
patent: 5948438 (1999-09-01), Staniforth et al.
patent: 6224909 (2001-05-01), Opitz et al.
patent: WO 9613251 (1996-05-01), None
patent: WO 9810754 (1998-03-01), None
Remington: The Science and Practice of Pharmacy, Chapter 91 Powders, 19th Edition, vol. II, 1995, pp. 1598-1614, 1627-1628.*
DAB (Deutsches Arzneibuch) 9 commentary, vol. 1, 9thed., 1986.
USP (United States Pharmacopoea) 24, p. 2254.
Registration documents for Carvedilol-12.5 mg; Part II: Chemical Pharmaceutical and Biological Documentation, vol. 1 of 2; Part IIC: Control of Starting Materials.
Patent Abstracts of Japan, Japanese Patent Publication (KOKAI) No. 76516/1995, Toyobo Co., Ltd., Mar. 20, 1995.
Gabel Rolf-Dieter
Preis Walter
Wirl Alexander
Johnston George W.
Rocha-Tramaloni Patricia S.
Roche Diagnostics GmbH
Spear James M.
LandOfFree
Carvedilol-galenics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carvedilol-galenics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carvedilol-galenics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3504632