Invention Grant
- Patent Title: Amorphous form of rifaximin and processes for its preparation
- Patent Title (中): 无定形形式的利福昔明及其制备方法
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Application No.: US11902211Application Date: 2007-09-20
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Publication No.: US07709634B2Publication Date: 2010-05-04
- Inventor: Kiran Kumar Kothakonda , Daqing Che
- Applicant: Kiran Kumar Kothakonda , Daqing Che
- Applicant Address: CA Brantford
- Assignee: Apotex PharmAchem Inc.
- Current Assignee: Apotex PharmAchem Inc.
- Current Assignee Address: CA Brantford
- Main IPC: C07D498/22
- IPC: C07D498/22
Abstract:
A stable amorphous form of rifaximin is disclosed. This form is chemically and polymorphically stable on storage and can be prepared by dissolving rifaximin in a solvent to form a solution, which is precipitated by adding an anti-solvent and isolating of the precipitated amorphous rifaximin as an end product.
Public/Granted literature
- US20090082558A1 Amorphous form of rifaximin and processes for its preparation Public/Granted day:2009-03-26
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