3d image of rifaximin skeletal formula

rifaximin broad spectrum antibiotic non-absorbable travelers' diarrhea treat irritable bowel syndrome hepatic encephalopathy rna polymerase enzyme transcription ibs clostridium difficile cdi infectious small intestinal bacterial overgrowth inflammatory disease diverticular nausea stomach pain dizziness fatigue headaches 3d bacteria flora resistance bacterial antimicrobial bactericide pathogen gram-positive gram- negative antibiotic-resistant antibacterial agent infections microorganism strain antimicrobial chemotherapy medication side effect adverse action iatrogenic overdose contraindications interaction