Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Reexamination Certificate
2011-06-07
2011-06-07
Vu, Jake M. (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
C514S567000
Reexamination Certificate
active
07955621
ABSTRACT:
There is provided a stable pharmaceutical formulation comprising (a) an effective amount of levothyroxine sodium, (b) microcrystalline cellulose which has a mean particle size of less than 125 μm and is present in an amount of 60 to 85% w/w based upon the total weight of the formulation, and (c) pregelatinised starch present in an amount of 5 to 30% w/w based upon total weight of the formulation. There is also provided a process for the preparation of such a formulation.
REFERENCES:
patent: 5955105 (1999-09-01), Mitra et al.
patent: 5958979 (1999-09-01), Lahr et al.
patent: 5976600 (1999-11-01), Ruszkay et al.
patent: 6190696 (2001-02-01), Groenewoud
patent: 6555581 (2003-04-01), Franz et al.
patent: 2003/0032675 (2003-02-01), Franz et al.
patent: 11-286456 (1999-10-01), None
patent: 2001-064177 (2001-03-01), None
patent: 2001-163770 (2001-06-01), None
patent: WO95/20954 (1995-08-01), None
patent: WO01/74448 (2001-10-01), None
European (European Pharmacopoeia (2002) p. 1438).
Handbook (Handbook of Pharmaceutical Excipients: 5th edition. p. 134, 725 and 731 (2006)).
MSDS (Material Safety Data Sheet: L-Thyroxine, sodium salt).
Handbook (Handbook of Pharmaceutical Excipients: 5th edition. p. 732 (2006)).
Hager's Handbuch de Pharmazeutischen Praxis, 5., vollständig neubearbeitete Auflage, Springer-Verlag Berlin Heidelberg pp. 733-734, 1993.
Rolski, Chemia Srodkow Lecznichzych, str. 654-655, PZWL, Warszawa 1968.
Iskandarani et al. “Scale-up feasibility in high-shear mixers: Determination through statistical procedures” Drug Dev. and Industr. Pharm. 27:651-657 (2001).
Konieczna Malgorzata
Krohn Heiner
Roman Wanda
Schlehahn Hendrik
Strozyk Malgorzata Anna
Aspen Global Incorporated
Nixon & Vanderhye P.C.
Vu Jake M.
LandOfFree
Pharmaceutical formulation comprising levothyroxine sodium does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pharmaceutical formulation comprising levothyroxine sodium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pharmaceutical formulation comprising levothyroxine sodium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2721898