Rifaximin
ریفاکسیمین
🍽️ Alimentary Tract And MetabolismGut-selective rifamycin antibiotic
Market / country: 🇺🇸 USA
Xifaxan (US)
🧮 Dose calculator
Travellers’ diarrhoea · Regimen source: FDA Xifaxan · 2.1
Enter age (weight is optional for this regimen).
🛡️ Safety & information
Contraindications
- ⛔ Hypersensitivity to rifaximin or rifamycins. FDA Xifaxan · 4
Formulations
- 200 mg tablet — tablet 🇺🇸 USA FDA Xifaxan · 3
- 550 mg tablet — tablet 🇺🇸 USA FDA Xifaxan · 3
👥 Special populations
- 🤰 PregnancyUse with caution
Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Xifaxan · 8.1
“Risk Summary There are no available data on XIFAXAN use in pregnant women to inform any drug-associated risks.”
- 🤱 BreastfeedingUse with caution
Label: use with caution while breastfeeding; see the label text. FDA Xifaxan · 8.2
“Risk Summary There is no information regarding the presence of rifaximin in human milk, the effects of rifaximin on the breastfed infant, or the effects of rifaximin on milk production.”
- 👶 ChildrenUse with caution
The label has conditions, age limits or notes for children; the label sentence is quoted below. FDA Xifaxan · 8.4
“The safety and effectiveness of XIFAXAN has not been established in pediatric patients less than 12 years of age with TD or in patients less than 18 years of age for HE and IBS-D.”
- 👴 Older adultsNo specific problem stated
Label: no specific difference or dose adjustment stated for older adults. FDA Xifaxan · 8.5
“No overall differences in safety or effectiveness were observed between these subjects and younger subjects for either indication.”
- ⚥ Females & males of reproductive potentialNo data
The source for this drug has no section for this group.
🔗 Reference links
- FDA (approval record)NDA021361
- DailyMed (FDA label)FDA Xifaxan
- MedlinePlus (NIH)Rifaximin
- WHO ATC/DDDA07AA11
- Darooyab (Iran)Rifaximin
🇮🇷 Registered in Iran Darooyab · G-495/Rifaximin
Dosage forms with Iranian generic codes, per Darooyab.
- 13992 · RIFAXIMIN 200MG TAB · قرص ریفاکسیمین ۲۰۰ میلیگرم
- 22141 · RIFAXIMIN 550MG TAB · قرص ریفاکسیمین ۵۵۰ میلیگرم
📚 Reference status for this drug
Shows which sources have references recorded for this drug and which do not.
- FDA label (DailyMed)✅ PresentFDA Xifaxan · 3FDA Xifaxan · 2.1FDA Xifaxan · 2.2FDA Xifaxan · 2.3FDA Xifaxan · 4FDA Xifaxan · 8.1FDA Xifaxan · 8.2FDA Xifaxan · 8.4FDA Xifaxan · 8.5FDA Xifaxan · SPL approval / marketing category
- UK SmPC (eMC / MHRA)❌ Not present
- Published guideline❌ Not present
- Licensed reference (medical school)❌ Not present
- Iranian leaflet (IFDA)❌ Not present
- Pharmacy website (secondary, unreliable)✅ PresentDarooyab · G-495/Rifaximin
- Clinical review⚠ Unverified