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US 12,109,200 B2Granted
Rifaximin
AssigneeCipla Limited
InventorsDharmaraj Ramachandra Rao, Rajendra Narayanrao Kankan, Manjinder Singh Phull, Maruti Ghagare
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Abstract
Amorphous rifaximin, methods of making it, and pharmaceutical compositions containing it. Also described are methods of converting amorphous rifaximin to crystalline rifaximin and vice versa.
Claims4
A pharmaceutical composition in tablet form essentially free of crystalline rifaximin, the tablet comprising amorphous rifaximin, colloidal silicon dioxide, and microcrystalline cellulose.
Dependencies are inferred from the claim text.