POLYMORPH OF RIFAXIMIN AND PROCESS FOR THE PREPARATION THEREOF

摘要

The present invention relates to a new polymorph of Rifaximin, designatedκ, and to a process for the preparation thereof. Under certain aspects, the invention also relates to pharmaceutical compositions comprising an effective amount of the polymorphic formκof Rifaximin and a pharmaceutically acceptable carrier and its uses in the treatment of gastrointestinal conditions.