Rifaximin 80621-81-4 XIFAXAN;,20,22,24,26-octamethyl-,(2s-(2r*,16z,18e,20r*,21r*,22s*,23s*,24s*,25r*,26s*,;2,7-(epoxypentadeca(1,11,13)trienimino)benzofuro(4,5-e)pyrido(1,2-a)benzimidaz;28e))-27r;fatroximin;l105;l105(ansa
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Rifaximin 80621-81-4
Item |
Specification |
Test Results |
Appearance |
Reddish Orange Powder |
Conforms |
Identification |
Positive |
Positive |
Acidity(pH value) |
5.5-7.0 |
6.2 |
Related Materials |
Single Impurity<0.1% IMURTY D+H<0.5% Total Impurity<1.0% |
0.1% 0.3% 0.8% |
Loss on drying |
<4.5% |
2.9% |
Solubility |
Practically insoluble in water, soluble in acetone and in methanol |
Conforms |
Residual solvents |
<5000ppmethanol |
<5000ppm |
Residue on ignition |
<0.1% |
0.10% |
Mesh size |
Pass 120 mesh |
Conforms |
Heavy Metals |
<20ppm |
Conforms |
Assay |
>98.0% |
99.0% |
Conclusion : Conforms EP5.0 |
Function
Intestinal infection, including acute and chronic intestinal infection, diarrhea, diarrhea, summer travelers and small intestine diarrhea conjunctivitis, and so on
Uses
Rifaximin is licensed by the U.S. Food and Drug Administration to treat traveler's diarrhea caused by E. coli.Clinical trials have shown that rifaximin is highly effective at preventing and treating traveler's diarrhea among travelers to Mexico, with fewside effects and low risk of developing antibiotic resistance.It is not effective against Campylobacter jejuni, and there is no evidence of efficacy against Shigella orSalmonella species.
It may be efficacious in relieving chronic functional symptoms of bloating and flatulence that are common in irritable bowel syndrome (IBS),especially IBS-D.
There was recently a pilot-study done on the efficacy of rifaximin as a means of treatment for rosacea, according to the study, induced by the co-presence of small intestinal bacterial overgrowth.
In the United States, rifaximin has orphan drug status for the treatment of hepatic encephalopathy.Although high-quality evidence is still lacking, rifaximin appears to be as effective as or more effective than other available treatments for hepatic encephalopathy (such as lactulose), is better tolerated, and may work faster. The drawbacks to rifaximin are increased cost and lack of robust clinical trials for HE without combination lactulose therapy.
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