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Description
Rifaximin 550 mg tablets are an antibiotic used primarily to treat certain gastrointestinal infections.
Primary Medical Uses:
– Treatment of traveler’s diarrhea caused by non-invasive strains of Escherichia coli.
– Management of irritable bowel syndrome with diarrhea (IBS-D).
– Prevention of hepatic encephalopathy recurrence in patients with liver disease.
Drug Class or Type:
– Non-systemic antibiotic, rifamycin derivative.
General Mechanism of Action:
– Rifaximin works by binding to bacterial RNA polymerase, inhibiting bacterial RNA synthesis, which leads to the elimination of susceptible bacteria in the gut.
– It has minimal systemic absorption, acting mainly within the intestines.
Common Forms:
– Oral tablets, commonly available in 550 mg strength.
Dosage Instructions:
– For traveler’s diarrhea: typically one tablet three times a day for 3 days.
– For hepatic encephalopathy prevention: usually one tablet twice daily, as prescribed.
– Always follow the prescribing healthcare provider’s recommendations.
Side Effects, Contraindications, or Interactions:
– Common side effects include nausea, flatulence, headache, and abdominal pain.
– Contraindicated in patients with hypersensitivity to rifaximin or rifamycin antibiotics.
– Use caution in patients with severe liver impairment.
– Possible interactions with other antibiotics or medications affecting gut flora.
Rifaximin 550 mg should be used under medical supervision with appropriate dosing and monitoring.
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