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Amoxicillin

FDA-approved product (capsule, oral), marketed as Amoxicillin, Amoxicillin Pediatric, Amoxil and 7 more.

Registered studies
50+
Lab records
107
Pathogens at ≥40%
1 of 4

Chemical structure

Chemical structure of Amoxicillin
A drawing shows what the molecule is, not what it does.

Existing / approved use

Documented · FDA, WHO, ChEMBL

Approved for

  • Bacterial disease
  • Duodenal ulcer
  • Gonorrhea
  • Infection
  • Infectious otitis media
  • Otitis media
  • Pharyngitis
  • Pneumonia
  • Recurrent tonsillitis
  • Respiratory tract infectious disorder
  • Sinusitis
  • Soft Tissue Infections
  • Tonsillitis
  • Urinary tract infection

Indications ChEMBL records as approved, from FDA and DailyMed labels. Label ↗

WHO therapeutic group
Penicillins with extended spectrum
Anti-infective classification
Classified as an existing antimicrobial.WHO ATC J01CA04

Repurposing investigation

Amoxicillin is already an antimicrobial, so it is not counted among the repurposing candidates. Its AI-predicted activity is shown below for reference.

AI-predicted activity

AI prediction · nothing measured
  • MRSA85.5% AI-predicted activityAt or above the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • E. coli30.1% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • K. pneumoniae5.9% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • M. tuberculosis33.6% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates.

A model’s estimate of laboratory activity against each pathogen species. It is not clinical effectiveness.

Evidence

Clinical and experimental

Documented evidence

Clinical

50+registered studies name this medicine, for any condition. The registry search keeps the first 50, so there may be more. See them below.

Experimental

  • MRSA: measured active in 20 of 26 lab records
  • E. coli: measured active in 5 of 10 lab records
  • K. pneumoniae: measured active in 3 of 71 lab records
Show the 107 laboratory records, with sources

Loading records…

“Active” means the measured value reached this project’s laboratory cutoff (10 µM or stronger). A laboratory result does not show an effect in patients.

Docking

Computational · nothing measured

Dihydrofolate reductase ↗ (E. coli)

-7.4 kcal/mol

0better fit →-12

KPC-2 carbapenemase ↗ (K. pneumoniae)

-7.7 kcal/mol

0better fit →-12

Enoyl-ACP reductase (InhA) ↗ (M. tuberculosis)

-9.2 kcal/mol

0better fit →-12

Dihydrofolate reductase ↗ (MRSA)

-7.0 kcal/mol

0better fit →-12

AutoDock Vina, one experimentally solved protein per pathogen. This project’s screening target is -7.0 kcal/mol, its own mark rather than a universal cutoff. A docking score is a structural hypothesis, not proof of binding, and requires experimental validation.

Other medicines to investigate

AI prediction · nothing measured

Other repurposing candidates: approved medicines besides Amoxicillin with AI-predicted activity ≥40% against the chosen pathogen, leaving out existing antimicrobials. They are computational candidates for further investigation, not alternatives and not recommendations.

Sorted by AI-predicted activity, high to low. The order is not a ranking of which medicine is better.

Registered studies

A registration describes a study; it does not establish a positive result.

  • Enhancing Amoxicillin Pharmacokinetics and Pharmacodynamics Parameters With Probenecid in Bone and Joint Infections

    NCT07764302 · start 2026-12

    Registered record
    Registry ID
    NCT07764302
    Conditions
    Osteoarticular Infections (OAIs)
    Interventions
    Oral probenecid added to oral amoxicillin for osteoarticular infections
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Not yet recruiting
    Start
    2026-12
    Completion
    2029-09
    Enrolment
    57

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionOsteoarticular Infections (OAIs)
    InterventionOral probenecid added to oral amoxicillin for osteoarticular infections
    PhasePhase 3
    Registry statusNot yet recruiting
  • Extended Azithromycin Treatment in Prelabor Rupture of Membranes

    NCT07669207 · start 2026-08-19

    Registered record
    Registry ID
    NCT07669207
    Conditions
    Preterm Prelabor Rupture of Membranes; PPROM
    Interventions
    Azithromycin (Azithro); Standard Azithromycin Dosing
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Recruiting
    Start
    2026-08-19
    Completion
    2028-07
    Enrolment
    30

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionPreterm Prelabor Rupture of Membranes; PPROM
    InterventionAzithromycin (Azithro); Standard Azithromycin Dosing
    PhasePhase 4
    Registry statusRecruiting
  • Effect of Bismuth Add-on to Dual Therapy for Helicobacter Pylori Eradication

    NCT07576959 · start 2026-04-08

    Registered record
    Registry ID
    NCT07576959
    Conditions
    HELICOBACTER PYLORI INFECTIONS
    Interventions
    Bismuth Add-on to Vonoprazan Dual Therapy; Vonoprazan dual therapy
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Recruiting
    Start
    2026-04-08
    Completion
    2032-12-31
    Enrolment
    990

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHELICOBACTER PYLORI INFECTIONS
    InterventionBismuth Add-on to Vonoprazan Dual Therapy; Vonoprazan dual therapy
    PhasePhase 3
    Registry statusRecruiting
  • Traditional vs. Posterior Nasal Radiofrequency Ablation for Chronic Rhinitis

    NCT07323888 · start 2026-03-01

    Registered record
    Registry ID
    NCT07323888
    Conditions
    Nasal Obstruction; Chronic Rhinitis; Nonallergic Rhinitis; Rhinorrhea; Inferior Turbinate Hypertrophy
    Interventions
    Traditional Radiofrequency Ablation of Inferior Turbinates With Posterior Nasal Radiofrequency Ablation; Traditional Radiofrequency Ablation of Inferior Turbinates
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Active not recruiting
    Start
    2026-03-01
    Completion
    2027-05-01
    Enrolment
    60

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionNasal Obstruction; Chronic Rhinitis; Nonallergic Rhinitis; Rhinorrhea +1 more
    InterventionTraditional Radiofrequency Ablation of Inferior Turbinates With Posterior Nasal Radiofrequency Ablation; Traditional Radiofrequency Ablation of Inferior Turbinates
    PhaseNot applicable
    Registry statusActive not recruiting
  • The Effect of Different Antibiotic Protocols on Peri-implant Tissue Health

    NCT06378502 · start 2024-05-03

    Registered record
    Registry ID
    NCT06378502
    Conditions
    Antibiotic
    Interventions
    Amoxicillin Short; Amoxicillin Long
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2024-05-03
    Completion
    2026-06-30
    Enrolment
    80

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionAntibiotic
    InterventionAmoxicillin Short; Amoxicillin Long
    PhasePhase 4
    Registry statusUnknown
  • Comparison of Two Dual Therapies in the First-line Treatment of Helicobacter Pylori Infection (SHARE2301)

    NCT05870683 · start 2023-05-24

    Registered record
    Registry ID
    NCT05870683
    Conditions
    Helicobacter Pylori Infection
    Interventions
    Tegoprazan; Amoxicillin; Esomeprazole
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Unknown
    Start
    2023-05-24
    Completion
    2023-12-30
    Enrolment
    368

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori Infection
    InterventionTegoprazan; Amoxicillin; Esomeprazole
    PhaseNot applicable
    Registry statusUnknown
  • Helicobacter Pylori and Vonoprazan Dual Therapy

    NCT05649709 · start 2023-02-13

    Registered record
    Registry ID
    NCT05649709
    Conditions
    Helicobacter Pylori
    Interventions
    L-VA dual therapy; H-VA dual therapy
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2023-02-13
    Completion
    2024-01-25
    Enrolment
    504

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori
    InterventionL-VA dual therapy; H-VA dual therapy
    PhasePhase 4
    Registry statusCompleted
  • The Effect of Systemic Antibiotics on Post-surgical Complications and Patient-centered Outcomes in Patients Undergoing Implant Surgery With Guided Bone Regeneration and Simultaneous Sinus Floor Elevation

    NCT04552080 · start 2022-12-29

    Registered record
    Registry ID
    NCT04552080
    Conditions
    Patients Undergoing Oral Implant Therapy
    Interventions
    Amoxicillin; Placebo
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2022-12-29
    Completion
    2026-03
    Enrolment
    30

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionPatients Undergoing Oral Implant Therapy
    InterventionAmoxicillin; Placebo
    PhasePhase 4
    Registry statusUnknown
  • Absorption of Antibiotics With High Oral Bioavailability in Short-bowel Syndrome

    NCT05302531 · start 2022-12-09

    Registered record
    Registry ID
    NCT05302531
    Conditions
    Short Bowel Syndrome; Infection, Bacterial
    Interventions
    Amoxicillin; Levofloxacin; Ofloxacin; Sulfamethoxazole trimethoprim
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Unknown
    Start
    2022-12-09
    Completion
    2025-02
    Enrolment
    10

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionShort Bowel Syndrome; Infection, Bacterial
    InterventionAmoxicillin; Levofloxacin; Ofloxacin; Sulfamethoxazole trimethoprim
    PhasePhase 1
    Registry statusUnknown
  • One vs Two Weeks Treatment for H.Pylori Eradication A RANDOMIZED NON-INFERIORITY PLACEBO CONTROLLED TRIAL

    NCT05728424 · start 2022-09-20

    Registered record
    Registry ID
    NCT05728424
    Conditions
    Helicobacter Pylori Infection
    Interventions
    Vonoprazan, Amoxicillin, Levofloxacin
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Unknown
    Start
    2022-09-20
    Completion
    2023-05-01
    Enrolment
    246

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori Infection
    InterventionVonoprazan, Amoxicillin, Levofloxacin
    PhasePhase 3
    Registry statusUnknown
  • Efficacy and Safety of Dual Therapy for Helicobacter Pylori Eradication

    NCT05469685 · start 2022-08-01

    Registered record
    Registry ID
    NCT05469685
    Conditions
    Helicobacter Pylori Infection
    Interventions
    Vonoprazan; Amoxicillin
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2022-08-01
    Completion
    2023-09-30
    Enrolment
    914

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori Infection
    InterventionVonoprazan; Amoxicillin
    PhasePhase 4
    Registry statusCompleted
  • Bismuth Quadruple Therapy for Helicobacter Pylori Rescue Therapy of Different Tetracycline Doses and Frequencies.

    NCT05432115 · start 2022-06-25

    Registered record
    Registry ID
    NCT05432115
    Conditions
    Helicobacter Pylori Infection
    Interventions
    Tetracyclin
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2022-06-25
    Completion
    2023-10
    Enrolment
    407

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori Infection
    InterventionTetracyclin
    PhasePhase 4
    Registry statusUnknown
  • Collaborative Urological Prosthetics Investigation Directive Research Group

    NCT05100654 · start 2022-04-22

    Registered record
    Registry ID
    NCT05100654
    Conditions
    Erectile Dysfunction; Penile Prosthesis Infection
    Interventions
    Doxycycline; Ciprofloxacin; Augmentin; Bactrim
    Study type
    INTERVENTIONAL
    Phase
    Early phase 1
    Registry status
    Active not recruiting
    Start
    2022-04-22
    Completion
    2028-01-01
    Enrolment
    800

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionErectile Dysfunction; Penile Prosthesis Infection
    InterventionDoxycycline; Ciprofloxacin; Augmentin; Bactrim
    PhaseEarly phase 1
    Registry statusActive not recruiting
  • Bismuth-containing Quadruple Therapy for Helicobacter Pylori Eradication: A Randomized Clinical Trial of 10 and 14 Days

    NCT04901117 · start 2021-06

    Registered record
    Registry ID
    NCT04901117
    Conditions
    Helicobacter Pylori Infection
    Interventions
    Amoxicillin; Clarithromycin; Tetracycline; Metronidazole; Bismuth Potassium Citrate; Colloidal Bismuth Pectin; Vonoprazan fumarate
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2021-06
    Completion
    2023-08
    Enrolment
    1,300

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHelicobacter Pylori Infection
    InterventionAmoxicillin; Clarithromycin; Tetracycline; Metronidazole +3 more
    PhasePhase 4
    Registry statusUnknown
  • Effects of Nasal-spraying LiveSpo Navax in Treatment of Influenza Virus in Children

    NCT05378022 · start 2020-12-21

    Registered record
    Registry ID
    NCT05378022
    Conditions
    Acute Respiratory Tract Infections
    Interventions
    LiveSpo Navax; 0.9% NaCl physiological saline
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Completed
    Start
    2020-12-21
    Completion
    2022-04-22
    Enrolment
    70

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionAcute Respiratory Tract Infections
    InterventionLiveSpo Navax; 0.9% NaCl physiological saline
    PhaseNot applicable
    Registry statusCompleted