Invention Grant
US08133506B2 Drug delivery systems comprising weakly basic drugs and organic acids
有权
包括弱碱性药物和有机酸的药物递送系统
- Patent Title: Drug delivery systems comprising weakly basic drugs and organic acids
- Patent Title (中): 包括弱碱性药物和有机酸的药物递送系统
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Application No.: US12209285Application Date: 2008-09-12
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Publication No.: US08133506B2Publication Date: 2012-03-13
- Inventor: Gopi Venkatesh , Jin-Wang Lai , Nehal H. Vyas , Vivek Purohit
- Applicant: Gopi Venkatesh , Jin-Wang Lai , Nehal H. Vyas , Vivek Purohit
- Applicant Address: US OH Vandalia
- Assignee: Aptalis Pharmatech, Inc.
- Current Assignee: Aptalis Pharmatech, Inc.
- Current Assignee Address: US OH Vandalia
- Agency: Cooley LLP
- Main IPC: A61K9/48
- IPC: A61K9/48 ; A61K9/16 ; A61K31/4178

Abstract:
The present invention is directed to pharmaceutical compositions, and methods of making such compositions, wherein the compositions comprise a plurality of TPR and RR particles, wherein: the TPR particles each comprise a core coated with a TPR layer; the core comprises a weakly basic, poorly soluble drug and a pharmaceutically acceptable organic acid separated from each other by an SR layer; the RR particles each comprise the weakly basic, poorly soluble drug, and release at least about 80 wt. % of the weakly basic, poorly soluble drug in about 5 minutes when dissolution tested using United States Pharmacopoeia (USP) dissolution methodology (Apparatus 2—paddles@50 RPM and a two-stage dissolution medium at 37° C. (first 2 hours in 0.1N HCl followed by testing in a buffer at pH 6.8).
Public/Granted literature
- US20090232885A1 Drug Delivery Systems Comprising Weakly Basic Drugs and Organic Acids Public/Granted day:2009-09-17
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