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Rifaximin: beyond the traditional antibiotic activity
Fiorella Calanni1, Cecilia Renzulli1, Miriam Barbanti1
1Research and Development Department, Alfa Wassermann SpA, Bologna, Italy.
Abstract:
Rifaximin is a non-systemic oral antibiotic derived from rifampin and characterized by a broad spectrum of antibacterial activity against Gram-positive and -negative, aerobic and anaerobic bacteria. Rifaximin was first approved in Italy in 1987 and afterwards in many other worldwide countries for the treatment of several gastrointestinal diseases. This review updates the pharmacology and pharmacodynamics of rifaximin highlighting the different actions, beyond its antibacterial activity, such as alteration of virulence, prevention of gut mucosal adherence and bacterial translocation. Moreover, rifaximin exerts some anti-inflammatory effects with only a minimal effect on the overall composition of the gut microbiota. All these properties make rifaximin a good candidate to treat various gastrointestinal diseases.
Insights
Rifaximin, an oral antibiotic, treats gastrointestinal diseases by targeting bacteria and reducing inflammation. Its unique properties offer benefits beyond antibacterial action for gut health.
Area of Science:
- Pharmacology and microbiology
- Gastroenterology
Background:
- Rifaximin is a broad-spectrum oral antibiotic derived from rifampin.
- Approved in 1987, it treats various gastrointestinal diseases worldwide.
Purpose of the Study:
- To review the pharmacology and pharmacodynamics of rifaximin.
- Highlight its actions beyond antibacterial effects.
Main Methods:
- Literature review of rifaximin's properties.
- Analysis of its effects on bacterial virulence, adherence, and translocation.
- Assessment of its anti-inflammatory and microbiota impact.
Main Results:
- Rifaximin exhibits broad-spectrum antibacterial activity.
- It modulates bacterial virulence, prevents mucosal adherence, and inhibits translocation.
- Rifaximin has anti-inflammatory effects with minimal impact on gut microbiota composition.
Conclusions:
- Rifaximin possesses multifaceted actions beneficial for gastrointestinal health.
- Its unique pharmacological profile supports its use in treating diverse gut conditions.
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