Last reviewed · How we verify
Rifaximin SSD — Competitive Intelligence Brief
phase 3
Rifamycin antibiotic
Bacterial RNA polymerase
Gastroenterology
Small molecule
Live · refreshed every 30 min
Target snapshot
Rifaximin SSD (Rifaximin SSD) — Bausch Health Americas, Inc.. Rifaximin SSD is a non-absorbed antibiotic that inhibits bacterial RNA polymerase to reduce pathogenic gut bacteria.
Comparator set (6 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| Rifaximin SSD TARGET | Rifaximin SSD | Bausch Health Americas, Inc. | phase 3 | Rifamycin antibiotic | Bacterial RNA polymerase | |
| Vancomycin plus Rifampin | Vancomycin plus Rifampin | Michael E. DeBakey VA Medical Center | marketed | Antibiotic combination | Bacterial cell wall (vancomycin) and bacterial RNA polymerase (rifampin) | |
| Rifaximin and loperamide | Rifaximin and loperamide | The University of Texas Health Science Center, Houston | marketed | Antibiotic + antidiarrheal combination | Bacterial RNA polymerase (rifaximin); mu-opioid receptors in the GI tract (loperamide) | |
| RIF | RIF | South China Children's Leukemia Group | marketed | Rifamycin antibiotic | Bacterial RNA polymerase | |
| clarithromycin, rifabutin | clarithromycin, rifabutin | The University of Texas Health Science Center at Tyler | marketed | Macrolide antibiotic and rifamycin antibiotic combination | Bacterial 50S ribosomal subunit (clarithromycin); bacterial RNA polymerase (rifabutin) | |
| PB 6 doses - Rifampicin and Dapsone | PB 6 doses - Rifampicin and Dapsone | University of Brasilia | marketed | Antileprosy combination therapy | Bacterial RNA polymerase (rifampicin); dihydropteroate synthase (dapsone) | |
| amoxicillin rifabutin | amoxicillin rifabutin | Shanghai Jiao Tong University School of Medicine | marketed | Combination antibiotic (beta-lactam + rifamycin) | Penicillin-binding proteins (amoxicillin); bacterial RNA polymerase (rifabutin) |
Recent regulatory actions (last 90 days)
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
Sponsor landscape (Rifamycin antibiotic class)
- Institute of Tropical Medicine, Belgium · 2 drugs in this class
- National Institute of Allergy and Infectious Diseases (NIAID) · 2 drugs in this class
- National Taiwan University Hospital · 2 drugs in this class
- Bausch Health Americas, Inc. · 2 drugs in this class
- South China Children's Leukemia Group · 1 drug in this class
- Suzhou Zelgen Biopharmaceuticals Co.,Ltd · 1 drug in this class
- TenNor Therapeutics (Suzhou) Limited · 1 drug in this class
- The University of Texas Health Science Center at Tyler · 1 drug in this class
- University College, London · 1 drug in this class
- University of California, San Francisco · 1 drug in this class
Subscribe to ongoing alerts
Push every new event for this competitive set into your RSS reader, IFTTT/Zapier workflow, or email digest:
- Rifaximin SSD CI watch — RSS
- Rifaximin SSD CI watch — Atom
- Rifaximin SSD CI watch — JSON
- Rifaximin SSD alone — RSS
- Whole Rifamycin antibiotic class — RSS
Cite this brief
Drug Landscape (2026). Rifaximin SSD — Competitive Intelligence Brief. https://druglandscape.com/ci/rifaximin-ssd. Accessed 2026-06-10.
Build your own brief
Pick any drug + add comparators:
https://druglandscape.com/ci/{slug}— auto-detected competitorshttps://druglandscape.com/ci/{slug}?vs=drug1,drug2,drug3— explicit comparators- Brand names auto-resolve:
/ci/keytruda→ 301 →/ci/pembrolizumab
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing