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Rifaximin SSD — Competitive Intelligence Brief

Rifaximin SSD (Rifaximin SSD) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Rifamycin antibiotic. Area: Gastroenterology.

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)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

DrugGenericSponsorPhaseClassTargetApproval / 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)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Rifamycin antibiotic class)

  1. Institute of Tropical Medicine, Belgium · 2 drugs in this class
  2. National Institute of Allergy and Infectious Diseases (NIAID) · 2 drugs in this class
  3. National Taiwan University Hospital · 2 drugs in this class
  4. Bausch Health Americas, Inc. · 2 drugs in this class
  5. South China Children's Leukemia Group · 1 drug in this class
  6. Suzhou Zelgen Biopharmaceuticals Co.,Ltd · 1 drug in this class
  7. TenNor Therapeutics (Suzhou) Limited · 1 drug in this class
  8. The University of Texas Health Science Center at Tyler · 1 drug in this class
  9. University College, London · 1 drug in this class
  10. University of California, San Francisco · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Rifaximin SSD — Competitive Intelligence Brief. https://druglandscape.com/ci/rifaximin-ssd. Accessed 2026-06-10.

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing