Drug ID:Drug103
Drug Name:Rifaximin
CID:6436173
DrugBank ID:DB01220
Modality:Small Molecule
Groups:approved|investigational
US Approved:YES
Other Approved:YES
Identifier: NCT00355602
Molecular Formula:C43H51N3O11
Molecular Weight:785.9 g/mol
Isomeric SMILES:C[C@H]1/C=C/C=C(\\C(=O)NC2=C(C3=C(C4=C(C(=C3O)C)O[C@@](C4=O)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)C5=C2N6C=CC(=CC6=N5)C)O)/C
Synonyms:Rifaximin; Rifaxidin; 80621-81-4; Rifacol; Rifamycin L 105; Rifaximine; Fatroximin; Rifamixin; Rifaximina; Normix
Phase 0: 4
Phase 1: 20
Phase 2: 73
Phase 3: 50
Phase 4: 32
Description:Rifaximin is a semisynthetic, rifamycin-based non-systemic antibiotic, meaning that the drug will not pass the gastrointestinal wall into the circulation as is common for other types of orally administered antibiotics. It is used to treat diarrhea caused by E. coli.

Molecular Structure

2D Molecular Structure

Knowledge Graph

dtIDCIDCompound NameGene IDGene NameSpeciesPubMed IDsAction
dt880 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) None
dt881 6436173 Rifaximin 93777907 rpoB Escherichia coli K-12 Inhibitor
dt882 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) Agonist
dt883 6436173 Rifaximin 1576 CYP3A4 Homo sapiens (human) Substrate|Inducer
dt884 6436173 Rifaximin 1557 CYP2C19 Homo sapiens (human) Inducer
dt885 6436173 Rifaximin 1558 CYP2C8 Homo sapiens (human) 11996015 Inducer
dt886 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) 22790967 [NR1I2 results in increased susceptibility to rifaximin] which results in increased expression of CD36 protein|[nr1i2 results in increased susceptibility to rifaximin] which results in increased expression of CFD mrna|[nr1i2 results in increased susceptib
dt887 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) 21599020 [rifaximin binds to and results in increased activity of NR1I2 protein] inhibits the reaction [trinitrobenzenesulfonic acid results in increased expression of TNF protein]|[rifaximin binds to and results in increased activity of NR1I2 protein] inhibits th
dt888 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) Rifaximin results in increased activity of NR1I2 protein
dt889 6436173 Rifaximin 8856 NR1I2 Homo sapiens (human) Rifaximin results in increased expression of NR1I2 mRNA

  • No data available

Phase Distribution
Phase Description
  • Phase 0: Exploratory trials to assess drug behavior in humans
  • Phase 1: Safety trials to determine safe dosage range
  • Phase 2: Efficacy trials to evaluate therapeutic effects
  • Phase 3: Large-scale trials to confirm efficacy and safety
  • Phase 4: Post-marketing surveillance for long-term safety and efficacy

Trial IDTitlePhaseStatusSponsorIndicationsInterventions
NCT05453916 Comparing the Efficacy of Nitazoxanide Versus Rifaximin in Adult Patients With Irritable Bowel Syndrome Without Constipation PHASE1|PHASE2 WITHDRAWN Sadat City University Irritable Bowel Syndrome With Diarrhea DRUG: Nitazoxanide 500Mg Oral Tablet|DRUG: Rifaxi… Details
NCT04841980 Rifaximin Therapy vs Low FODMAP Diet In IBS PHASE4 UNKNOWN University of Malaya Irritable Bowel Syndrome|Small Intestinal Bacteri… DRUG: Rifaximin|OTHER: Low FODMAP diet Details
NCT04557215 Efficacy and Safety of Rifaximin With NAC in IBS-D PHASE1|PHASE2 COMPLETED Cedars-Sinai Medical Center Irritable Bowel Syndrome With Diarrhea DRUG: Rifaximin|DRUG: N-acetylcysteine|DRUG: Plac… Details
NCT04316806 Effect of a Probiotic Formula on Reducing SIBO in IBS Patients NA TERMINATED AB Biotics, SA Irritable Bowel Syndrome|Small Intestinal Bacteri… DIETARY_SUPPLEMENT: Probiotic|DRUG: Rifaximin Details
NCT04254549 Rifaximin in Patients With Diabetic Gastroparesis PHASE2 TERMINATED Mayo Clinic Crohn Disease|Diabetic Gastroparesis DRUG: Rifaximin|DRUG: Placebo Details
NCT04154735 Autologous Transplant Targeted Against Crohn's PHASE2 WITHDRAWN Northwestern University Crohn's Disease DRUG: Fludarabine|DRUG: Cyclophosphamide|DRUG: Me… Details
NCT04074421 Effects of Continuous Treatment With Rifaximin and Probiotics on the Gut Microbiota of Patients With IBS-D PHASE4 UNKNOWN Second Affiliated Hospital, School of Medicine, Zhejiang University IBS - Irritable Bowel Syndrome|Gut Microbiota DRUG: Rifaximin|DRUG: Probiotic Formula|DRUG: Pla… Details
NCT03729271 Hydrogen Breath Test an Instrument to Predict Rifaximin-Response in Irritable Bowel Syndrome Predominant Diarrhea PHASE4 COMPLETED University of Michigan Irritable Bowel Syndrome|Irritable Bowel Syndrome… DRUG: Rifaximin|DEVICE: Glucose and lactulose hyd… Details
NCT03557788 Changes in Microbiota and Metabolomic Profile Between Rifaximin Responders and Non-responders In Diarrhoea-Predominant Irritable Bowel Syndrome PHASE4 COMPLETED National University Hospital, Singapore Irritable Bowel Syndrome With Diarrhea DRUG: Rifaximin Oral Tablet Details
NCT03537157 A Multicentre Study on Rifaximin in Post-operative Endoscopic Crohn's Disease Recurrence Prevention PHASE2 TERMINATED Alfasigma S.p.A. Crohn Disease DRUG: Rifaximin delayed release tablets|OTHER: Pl… Details
NCT03462966 Rifaximin on Visceral Hypersensitivity PHASE2 TERMINATED Cedars-Sinai Medical Center Visceral Hypersensitivity|Irritable Bowel Syndrome DRUG: Rifaximin Details
NCT03219528 A Longitudinal Study to Identify IBS Phenotypes Using Fecal Microbiota and Hydrogen Breath Testing PHASE4 COMPLETED University of Michigan Irritable Bowel Syndrome DRUG: Rifaximin 550 MG|OTHER: Low FODMAP Diet Details
NCT03185624 Effectiveness of Rifaximin on Preventing Postoperative Recurrence in Crohn's Disease PHASE3 UNKNOWN Sixth Affiliated Hospital, Sun Yat-sen University Crohn Disease DRUG: Rifaximin Details
NCT03185611 Effectiveness of Rifaximin Combined With Thiopurine on Preventing Postoperative Recurrence in Crohn's Disease PHASE3 UNKNOWN Sixth Affiliated Hospital, Sun Yat-sen University Crohn Disease DRUG: Rifaximin|DRUG: Azathioprine Details
NCT02651740 Gut Microbiota Reconstruction in the Treatment of Irritable Bowel Syndrome With Predominant Diarrhea PHASE2|PHASE3 UNKNOWN Shanghai Zhongshan Hospital Irritable Bowel Syndrome DRUG: Rifaximin|PROCEDURE: Fecal microbiota trans… Details
NCT02620007 Evaluation of Adherent Invasive E. Coli Eradication in Adult Crohn Disease PHASE2 TERMINATED Assistance Publique - Hôpitaux de Paris Crohn Disease|Adherent-invasive E. Coli DRUG: Ciprofloxacin|DRUG: Rifaximin|DRUG: Ciprofl… Details
NCT02565654 Efficacy of Rifaximin to Treat Diarrhea-predominant Irritable Bowel Syndrome NULL UNKNOWN First Affiliated Hospital, Sun Yat-Sen University Irritable Bowel Syndrome None Details
NCT02272868 Fecal Microbial Transplant in Pediatric Crohn's Disease PHASE1|PHASE2 TERMINATED Seattle Children's Hospital Crohn's Disease BIOLOGICAL: Fecal Microbial transplant|DRUG: Norm… Details
NCT02240121 One Year Study of Rifaximin Delayed Release (DR) Tablets in Crohn's Disease PHASE3 TERMINATED Bausch Health Americas, Inc. Crohn's Disease DRUG: Rifaximin EIR|DRUG: Placebo Details
NCT02240108 One Year Study of Rifaximin Delayed Release (DR) in Crohn's Disease PHASE3 TERMINATED Bausch Health Americas, Inc. Crohn's Disease DRUG: Rifaximin EIR|DRUG: Placebo Details

Disease IDDisease NameDefinitionCategoryRelated DrugsMechanism
2.0 ulcerative colitis A colitis that is predominantly confined to the mucosa located_in colon and includes characteristic ulcers, or open sores. disease of anatomical entity, gastrointestinal system disease, autoimmune disease of gastrointestinal tract; intestinal disease, inflammatory bowel disease, colitis; disease, primary immunodeficiency disease, autoimmune disease, autoimmune disease of gastrointestinal tract Mirikizumab; Olsalazine; Balsalazide; Sulfasalazine; Budesonide; Hydrocortisone acetate; Tixocortol; Kappadione; Teicoplanin; Atezolizumab; Gamolenic acid; Upadacitinib No abstract available Details

Strategy IDTherapeutic StrategySynonymsRelated DrugsMechanism
S01 Anti-inflammatory inflammatory 5-Aminosalicylates (5-ASAs); corticosteroids Crohn's disease and ulcerative colitis are the two main com… Details
S02 Immunosuppression Classic immunosuppressive drugs azathioprine; 6-mercaptopurine; methotrexate; ciclosporin-A; tacrolimus Ciclosporin-A and tacrolimus bind to specific intracellular… Details
S03 Anti-TNF agents Tumor necrosis factor infliximab; adalimumab; golimumab; certolizumab pegol TNF is produced by various immune and non-immune cells in t… Details
S04 T-cell homing and retention T-cell trafficking vedolizumab; anti-MAdCAM1 antibodies ; etrolizumab Inhibition of the interaction between α4β7 integrins on T c… Details
S07 Blockade of cytokine Cytokine signalling apremilast; roflumilast; filgotinib; tofacitinib; ABT494; ABT-874; ustekinumab; isankizumab; LY-2525623; AMG139; MEDI2079; guselkumab Various T-cell subsets, their differentiation pathways and … Details
S08 Strengthening barrier function Modulation of barrier function phosphatidylcholine (lecithin); imiquimod; mongersen Escherichia coli Nissle (EcN) is a nonpathogenic Gram-negat… Details
S11 Improveming Intestinal Microecology the intestinal microbiota antibiotics; probiotics; prebiotics; postbiotics; synbiotics; fecal microbiota transplantation (FMT) The imbalance between beneficial bacteria and harmful patho… Details

Adjunctive antibiotic therapy with rifaximin may help reduce Crohn's disease ac…

PMID: 20112064
Year: 2010
Relationship Type: Treatment Score: 6.1

AIMS: Enteric bacteria are thought to contribute to the pathogenesis of Crohn's disease, and antibiotics may be an effective therapy. This study exam…

Rifaximin: a unique gastrointestinal-selective antibiotic for enteric diseases

PMID: 19881343
Year: 2010
Relationship Type: Treatment Score: 6.1

PURPOSE OF REVIEW: Rifaximin is gaining attention for its potential activity in a multitude of gastrointestinal diseases. We review the unique pharma…

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