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Oxacillin Sodium

FDA-approved product (capsule, oral), marketed as Bactocill, Bactocill In Plastic Container, Oxacillin Sodium and 1 more.

Registered studies
50+
Lab records
22
Pathogens at ≥40%
1 of 4

Chemical structure

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

Existing / approved use

Documented · FDA, WHO, ChEMBL

Approved for

  • Bacterial disease
  • Infection

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

WHO therapeutic group
Beta-lactamase resistant penicillins
Anti-infective classification
Classified as an existing antimicrobial.WHO ATC J01CF04

Repurposing investigation

Oxacillin Sodium 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
  • MRSA9.8% 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.
  • E. coli32.4% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates.
  • K. pneumoniae46.7% AI-predicted activityAt or above the ≥40% mark this site uses to surface candidates.
  • M. tuberculosis39.2% 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 9 of 22 lab records
Show the 22 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)

Not yet docked: queued in the docking rundetails

KPC-2 carbapenemase ↗ (K. pneumoniae)

Not yet docked: queued in the docking rundetails

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

Not yet docked: queued in the docking rundetails

Dihydrofolate reductase ↗ (MRSA)

Not yet docked: queued in the docking rundetails

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 Oxacillin Sodium 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.

  • Does Staphylococcus Aureus Bacteremia Early Dual Therapy Improve Outcomes?

    NCT07148960 · start 2025-09-15

    Registered record
    Registry ID
    NCT07148960
    Conditions
    Staphylococcus Aureus Bacteremia
    Interventions
    Early Dual IV Antibiotic Therapy - MRSA; Early Dual IV Antibiotic Therapy - MSSA; Single Agent IV Antibiotic Therapy - MRSA; Single Agent IV Antibiotic Therapy - MSSA
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Enrolling by invitation
    Start
    2025-09-15
    Completion
    2027-07
    Enrolment
    300

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

    ConditionStaphylococcus Aureus Bacteremia
    InterventionEarly Dual IV Antibiotic Therapy - MRSA; Early Dual IV Antibiotic Therapy - MSSA; Single Agent IV Antibiotic Therapy - MRSA; Single Agent IV Antibiotic Therapy - MSSA
    PhasePhase 4
    Registry statusEnrolling by invitation
  • Comparison of Cloxacillin and Benzylpenicillin in Penicillin Susceptible S. Aureus Bacteraemia

    NCT06726395 · start 2025-03-10

    Registered record
    Registry ID
    NCT06726395
    Conditions
    Staphylococcus Aureus Bacteraemia; Staphylococcal Bacteraemia; Staphylococcus Aureus Bloodstream Infections (BSI; Bacteremia); Staphylococcus (S.) Aureus Infection
    Interventions
    Penicillin G_1200mg; cloxacillin
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Recruiting
    Start
    2025-03-10
    Completion
    2028-07
    Enrolment
    420

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

    ConditionStaphylococcus Aureus Bacteraemia; Staphylococcal Bacteraemia; Staphylococcus Aureus Bloodstream Infections (BSI; Bacteremia) +1 more
    InterventionPenicillin G_1200mg; cloxacillin
    PhasePhase 4
    Registry statusRecruiting
  • Amnioinfusion for Fetal Renal Failure

    NCT06728228 · start 2024-12-05

    Registered record
    Registry ID
    NCT06728228
    Conditions
    Multicystic Dysplastic Kidney; Polycystic Kidney Disease; Fetal Renal Anomaly; Anhydramnios; Potter Syndrome; Lung Hypoplasia; Multicystic Renal Dysplasia, Bilateral; Lower Urinary Tract Obstructive Syndrome; Bilateral Renal Agenesis
    Interventions
    Amnioinfusion
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Recruiting
    Start
    2024-12-05
    Completion
    2026-11-15
    Enrolment
    35

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

    ConditionMulticystic Dysplastic Kidney; Polycystic Kidney Disease; Fetal Renal Anomaly; Anhydramnios +5 more
    InterventionAmnioinfusion
    PhaseNot applicable
    Registry statusRecruiting
  • Early Intravenous to Oral Antibiotic Switch in Uncomplicated Staphylococcus Aureus Bacteraemia

    NCT06336824 · start 2024-06-28

    Registered record
    Registry ID
    NCT06336824
    Conditions
    Staphylococcus Aureus Bacteremia
    Interventions
    Tab. Trimethoprim-sulfamethoxazole, Tab. Clindamycin, Tab. Cephalexin, or Tab. Linezolid; IV Cloxacillin, IV Cefazolin, IV Vancomycin, or IV Ceftaroline
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Unknown
    Start
    2024-06-28
    Completion
    2025-06
    Enrolment
    290

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

    ConditionStaphylococcus Aureus Bacteremia
    InterventionTab. Trimethoprim-sulfamethoxazole, Tab. Clindamycin, Tab. Cephalexin, or Tab. Linezolid; IV Cloxacillin, IV Cefazolin, IV Vancomycin, or IV Ceftaroline
    PhasePhase 3
    Registry statusUnknown
  • Urogenital Infections in Women of Reproductive Age and the Activity of 4-Thiazolidinone Derivatives Against Pathogens

    NCT06616168 · start 2023-09-01

    Registered record
    Registry ID
    NCT06616168
    Conditions
    Bacterial Vaginosis
    Interventions
    Microbiological identification kits (ANAEROtest, STAPHYtest, ENTEROtest, NEFERMtest); Antibiotic therapy after the results of antibiotic sensitivity test (Mostly Oxacillin, Benzylpenicillin, Ceftriaxone, Doxycycline, Clindamycin); Suppositoria for vaginal microflora recovery (Giynoflor); Antifungal therapy (Mostly Fluconazole, Nystatin, Amphotericin B)
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Active not recruiting
    Start
    2023-09-01
    Completion
    2027-08-31
    Enrolment
    200

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

    ConditionBacterial Vaginosis
    InterventionMicrobiological identification kits (ANAEROtest, STAPHYtest, ENTEROtest, NEFERMtest); Antibiotic therapy after the results of antibiotic sensitivity test (Mostly Oxacillin, Benzylpenicillin, Ceftriaxone, Doxycycline, Clindamycin); Suppositoria for vaginal microflora recovery (Giynoflor); Antifungal therapy (Mostly Fluconazole, Nystatin, Amphotericin B)
    PhasePhase 1
    Registry statusActive not recruiting
  • Comparing Oral Versus Parenteral Antimicrobial Therapy

    NCT05977868 · start 2023-08-04

    Registered record
    Registry ID
    NCT05977868
    Conditions
    Endovascular Infection; Bone and Joint Infection; Skin and Soft Tissue Infection; Pulmonary Infection; Gastrointestinal Infection; Genitourinary Infection
    Interventions
    Amoxicillin, amoxicillin-clavulanate, cefadroxil, cefpodoxime, cefalexin, ciprofloxacin, delafloxacin, doxycycline, levofloxacin, linezolid; Ampicillin, ampicillin-sulbactam, cefazolin, cefepime, ceftaroline, ceftazidime, ceftazidime-avibactam, dalbavancin, daptomycin, ertapenem
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Terminated
    Start
    2023-08-04
    Completion
    2025-02-14
    Enrolment
    94

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

    ConditionEndovascular Infection; Bone and Joint Infection; Skin and Soft Tissue Infection; Pulmonary Infection +2 more
    InterventionAmoxicillin, amoxicillin-clavulanate, cefadroxil, cefpodoxime, cefalexin, ciprofloxacin, delafloxacin, doxycycline, levofloxacin, linezolid; Ampicillin, ampicillin-sulbactam, cefazolin, cefepime, ceftaroline, ceftazidime, ceftazidime-avibactam, dalbavancin, daptomycin, ertapenem
    PhasePhase 4
    Registry statusTerminated
  • Plasma Pharmacological Monitoring of M Penicillins in Methicillin-sensitive Staphylococcus Aureus Bacteremia

    NCT06495697 · start 2023-07-19

    Registered record
    Registry ID
    NCT06495697
    Conditions
    Staphylococcus Aureus Infection
    Interventions
    Not recorded
    Study type
    OBSERVATIONAL
    Phase
    Not recorded
    Registry status
    Unknown
    Start
    2023-07-19
    Completion
    2024-07-19
    Enrolment
    200

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

    ConditionStaphylococcus Aureus Infection
    InterventionNot recorded
    PhaseNot recorded
    Registry statusUnknown
  • Efficacy of LiveSpo Navax in Supportive Treatment of Pneumonia in Children With RSV and Bacterial Co-infections

    NCT05929599 · start 2023-07-05

    Registered record
    Registry ID
    NCT05929599
    Conditions
    Acute Respiratory Tract Infections; Pneumonia; Respiratory Syncytial Virus (RSV)
    Interventions
    0.9% NaCl physiological saline; LiveSpo Navax
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Active not recruiting
    Start
    2023-07-05
    Completion
    2025-03
    Enrolment
    120

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

    ConditionAcute Respiratory Tract Infections; Pneumonia; Respiratory Syncytial Virus (RSV)
    Intervention0.9% NaCl physiological saline; LiveSpo Navax
    PhaseNot applicable
    Registry statusActive not recruiting
  • Staphylococcus Aureus and The Skin Microbiome During Flare And Resolution Of Atopic Dermatitis

    NCT05578482 · start 2022-10-24

    Registered record
    Registry ID
    NCT05578482
    Conditions
    Atopic Dermatitis; Atopic Dermatitis Eczema; Atopic Dermatitis Flare
    Interventions
    Dicloxacillin Oral Capsule; Elocon 0.1 % Topical Cream
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2022-10-24
    Completion
    2023-05
    Enrolment
    45

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

    ConditionAtopic Dermatitis; Atopic Dermatitis Eczema; Atopic Dermatitis Flare
    InterventionDicloxacillin Oral Capsule; Elocon 0.1 % Topical Cream
    PhasePhase 4
    Registry statusUnknown
  • Oral Antimicrobial Treatment vs. Outpatient Parenteral for Infective Endocarditis

    NCT05398679 · start 2022-08-17

    Registered record
    Registry ID
    NCT05398679
    Conditions
    Endocarditis Infective
    Interventions
    Cefaclor; Ciprofloxacin Tablets; Ciprofloxacin Injection; Clindamycin Oral Capsule; Clindamycin Injection; Dicloxacillin Oral Capsule; Dicloxacillin; Fusidic Acid Only Product in Oral Dose Form; Fusidic Acid Only Product in Parenteral Dose Form; Levofloxacin Oral Tablet; Levofloxacin Injection; Linezolid Oral Tablet; Linezolid Injectable Product; Moxifloxacin tablet; Moxifloxacin Injectable Product; Rifampicin Only Product in Oral Dose Form; Rifampicin Only Product in Parenteral Dose Form; Sulfamethoxazole / Trimethoprim Oral Tablet [Bactrim]; Sulfamethoxazole / Trimethoprim Injectable Product; Tedizolid Oral Tablet; Tedizolid Injection; Amoxicillin Capsules; Amoxicillin; Cefaclor Capsules
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Recruiting
    Start
    2022-08-17
    Completion
    2027-12-30
    Enrolment
    360

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

    ConditionEndocarditis Infective
    InterventionCefaclor; Ciprofloxacin Tablets; Ciprofloxacin Injection; Clindamycin Oral Capsule +20 more
    PhasePhase 4
    Registry statusRecruiting
  • Ice Application for Oxacillin-Related Phlebitis and Pain

    NCT07820956 · start 2022-04-07

    Registered record
    Registry ID
    NCT07820956
    Conditions
    Peripheral Intravenous Phlebitis; Injection Site Pain; Pain
    Interventions
    Ice Application; Room-Temperature Water-Bag Application
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Completed
    Start
    2022-04-07
    Completion
    2022-12-31
    Enrolment
    86

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

    ConditionPeripheral Intravenous Phlebitis; Injection Site Pain; Pain
    InterventionIce Application; Room-Temperature Water-Bag Application
    PhaseNot applicable
    Registry statusCompleted
  • Postoperative Antibiotic Management Duration Following Surgery for Intravenous Drug Abuse (IVDA) Endocarditis (OPTIMAL)

    NCT05156437 · start 2022-03-16

    Registered record
    Registry ID
    NCT05156437
    Conditions
    Endocarditis
    Interventions
    Amoxycillin, Cefalexin, Dicloxacillin, Linezolid, Levofloxacin, Rifampicin; Ampicillin, Oxacillin, Vancomycin, Daptomycin, Ceftriaxone, Cefepime, Ceftaroline
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Terminated
    Start
    2022-03-16
    Completion
    2024-10-31
    Enrolment
    5

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

    ConditionEndocarditis
    InterventionAmoxycillin, Cefalexin, Dicloxacillin, Linezolid, Levofloxacin, Rifampicin; Ampicillin, Oxacillin, Vancomycin, Daptomycin, Ceftriaxone, Cefepime, Ceftaroline
    PhasePhase 4
    Registry statusTerminated
  • The Effect of Dicloxacillin on Oral Absorption of Drugs

    NCT05073627 · start 2022-02-07

    Registered record
    Registry ID
    NCT05073627
    Conditions
    Healthy Volunteers; Drug-drug Interaction
    Interventions
    Dicloxacillin
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Completed
    Start
    2022-02-07
    Completion
    2022-06-22
    Enrolment
    12

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

    ConditionHealthy Volunteers; Drug-drug Interaction
    InterventionDicloxacillin
    PhasePhase 1
    Registry statusCompleted
  • DOTS: Dalbavancin as an Option for Treatment of Staphylococcus Aureus Bacteremia

    NCT04775953 · start 2021-04-22

    Registered record
    Registry ID
    NCT04775953
    Conditions
    Staphylococcal Bacteraemia
    Interventions
    Cefazolin; Dalbavancin; Daptomycin; Nafcillin; Oxacillin; Vancomycin
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2021-04-22
    Completion
    2023-12-01
    Enrolment
    200

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

    ConditionStaphylococcal Bacteraemia
    InterventionCefazolin; Dalbavancin; Daptomycin; Nafcillin +2 more
    PhasePhase 2
    Registry statusCompleted
  • Gentamicin in Cardiac Surgery

    NCT06454643 · start 2020-01-01

    Registered record
    Registry ID
    NCT06454643
    Conditions
    Cardiac Infection
    Interventions
    Flucloxacillin and gentamicin; Flucloxacillin and ceftriaxone
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Completed
    Start
    2020-01-01
    Completion
    2021-01-01
    Enrolment
    50

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

    ConditionCardiac Infection
    InterventionFlucloxacillin and gentamicin; Flucloxacillin and ceftriaxone
    PhaseNot applicable
    Registry statusCompleted