Evaluate for Clostridium-associated diarrhea if diarrhea occurs after treatment or does not improve during treatment.
Common
Serious
Antimicrobial class: Rifamycin
Pregnancy category: C
Average serum half life: 2-5 hours
CSF penetration: Poor
Precautions: Use with caution in patients with severe (Child-Pugh Class C) hepatic impairment due to increased systemic exposure.
Rifaximin was not effective in diarrhea complicated by fever and/or blood in the stool or diarrhea due to pathogens other than E. coli. If diarrhea symptoms get worse or persist for more than 24-48 hours, discontinue and consider alternative antibiotics.