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US 2010/0137580 A1Published application
Process for preparing amorphous rifaximin and the amorphous rifaximin thus obtained
OwnerEmilio Vecchio, Roberta Pizzocaroinventors
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Abstract
A process is described which enables Rifaximin in a completely amorphous form to be obtained. Said process comprises the steps of dissolving crude Rifaximin in absolute ethanol while hot and then collecting after precipitation by cooling the title compound under amorphous form.
Claims7
Process for preparing amorphous rifaximin in which crude rifaximin is dissolved in absolute ethanol while hot, then collected after precipitation by cooling of the solution.
Dependencies are inferred from the claim text.