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In some countries, this medicine may only be approved for veterinary use.

In the US, Cloxacillin (cloxacillin systemic) is a member of the drug class penicillinase resistant penicillins and is used to treat Bacterial Infection, Bladder Infection, Pneumonia, Skin and Structure Infection and Upper Respiratory Tract Infection.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Beta-lactam antibacterial: Beta-lactamase resistant penicillin

Chemical Name

6-[3-(o-Chlorophenyl)-5-metyl-4-isoxazolecarboxamido]-3,3-dimetyl-7-oxo-4-tia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Foreign Names

  • Cloxacillinum (Latin)
  • Cloxacillin (German)
  • Cloxacilline (French)
  • Cloxacilina (Spanish)

Generic Names

Brand Names

  • Aclox
    Southshourne, Kenya
  • Amclo (Cloxacillin and Amoxicillin)
    AHPL, India; Union, Taiwan
  • Amclocin (Cloxacillin and Ampicillin)
    Synpac-Kingdom, Taiwan
  • Amcopen (Cloxacillin and Ampicillin)
    Karachi Chemical, Pakistan
  • Ampiclox (Cloxacillin and Ampicillin)
    SmithKline Beecham, Egypt; Glaxo, Pakistan; GlaxoSmithKline, Oman
  • Ampicloxacillin (Cloxacillin and Ampicillin)
    Haji Medicine, Pakistan
  • Ampi-Plus (Cloxacillin and Ampicillin)
    Donvalley, Pakistan
  • Amplus (Cloxacillin and Ampicillin)
    Bosch, Pakistan
  • Ampoxin (Cloxacillin and Ampicillin)
    Unichem, India
  • Anclox (Cloxacillin and Ampicillin)
    Ankaz, Pakistan
  • Anglocin (Cloxacillin and Ampicillin)
    Anglopak, Pakistan
  • Apen (Cloxacillin and Ampicillin)
    Xixia, South Africa
  • Apoclox (Cloxacillin and Ampicillin)
    PDH, Pakistan
  • Auropen Inj.
    Cirin, Pakistan
  • Baxin (Cloxacillin and Ampicillin)
    Hetero, India
  • Betaclox (Cloxacillin and Amoxicillin)
    Ajanta, India
  • Bioceena (Cloxacillin and Ampicillin)
    Mediceena, Pakistan
  • Biocillin (Cloxacillin and Ampicillin)
    CCL, Pakistan
  • Bioclox (Cloxacillin and Ampicillin)
    Geofman, Pakistan
  • Biviseal Plus (Cloxacillin and Bismuth (veterinary use))
    Cross Vetpharm Group, Ireland
  • Blumox Plus (Cloxacillin and Amoxicillin)
    Blue Cross, India
  • Boschoclox (Cloxacillin and Amoxicillin)
    Bosch, Pakistan
  • Boviseal Plus (Cloxacillin and Bismuth (veterinary use))
    Cross Vetpharm Group, Ireland
  • Broadiclox (Cloxacillin and Ampicillin)
    Alkem, India; Alkem, Tanzania
  • Cefolac-XL (Cloxacillin and Cefixime)
    Macleods, India
  • Cloxacap
    Hovid, Hong Kong
  • Cloxacil
    Saiph, Tunisia
  • Cloxacilina Andromaco
    Laboratorios Andromaco, Chile
  • Cloxacilina Biosano
    Laboratorios Biosano, Chile
  • Cloxacilina Mintlab
    Mintlab Co., Chile
  • Cloxacilina Opko
    Opko Chile, Chile
  • Cloxacillin
    Mediphar, Lebanon
  • Cloxacillin Remedica
    Remedica, Cyprus
  • Cloxam
    MacroPhar, Thailand
  • Cloxgen
    General Drugs House, Thailand
  • Cloxiran
    Cosar, Oman
  • Curaclox (Cloxacillin and Ampicillin (veterinary use))
    Norbrook, South Africa
  • DC (Cloxacillin and Ampicillin)
    AHPL, India
  • Duoclox (Cloxacillin and Ampicillin)
    FDC, India
  • Fortitude EDS (veterinary use)
    Zoetis, South Africa
  • Galaclox (veterinary use)
    CP-Pharma, Poland
  • Interclox DC (Cloxacillin and Ampicillin (veterinary use))
    Chem-Pharm, Ireland
  • Juraclox L.A. Dry Cow (veterinary use)
    Jurox, New Zealand
  • Klox
    Hetero, India; NPI, Oman
  • Kloxerate (Cloxacillin and Ampicillin (veterinary use))
    Pfizer Animal Health, United Kingdom
  • Kloxerate (veterinary use)
    Pfizer Animal Health, United Kingdom
  • Lacti-Cillin (Cloxacillin and Ampicillin (veterinary use))
    Bayer AH, South Africa
  • Lampicin Fort (Cloxacillin and Ampicillin)
    Bright Future Pharm, Hong Kong
  • Masticlox Plus (Cloxacillin and Ampicillin (veterinary use))
    Merial, South Africa
  • Monoclox
    Sanolabor, Slovenia
  • Mytimox (Cloxacillin and Amoxicillin)
    Panacea, India
  • Nitroclox LA (veterinary use)
    Virbac, New Zealand
  • Orbenin
    GlaxoSmithKline, Oman
  • Orbenin (veterinary use)
    Pfizer, Poland; Zoetis Belgium, Belgium
  • Orbenin Enduro (veterinary use)
    Zoetis, New Zealand
  • Orbenin LA (veterinary use)
    Zoetis Belgium, Belgium
  • Penclox High Potency Milking Cow (Cloxacillin and Benzylpenicillin procaine (veterinary use))
    Virbac, New Zealand
  • Pencloxin (Cloxacillin and Ampicillin)
    Lagap, Oman
  • Pulmoclox (Cloxacillin and Amoxicillin)
    Micro B & B, India
  • Rivaclox (Cloxacillin and Ampicillin)
    Riva ph, Egypt
  • Roscilox (Cloxacillin and Ampicillin)
    Ranbaxy, India
  • Sheptaclox DC (Cloxacillin and Ampicillin (veterinary use))
    Listow, United Kingdom
  • Syntarpen
    Polfa Tarchomin, Poland
  • Tresmox (Cloxacillin and Amoxicillin)
    AHPL, India
  • Vetriclox (veterinary use)
    Ceva, Germany
  • Ampiclox (Cloxacillin and Ampicillin (veterinary use))
    Jurox, Australia
  • Biclox (Cloxacillin and Ampicillin (veterinary use))
    Biokema, Switzerland
  • Biocillina (Cloxacillin and Amoxicillin (veterinary use))
    Izo, Italy
  • Bovaclox (Cloxacillin and Ampicillin (veterinary use))
    Norbrook, Netherlands; Norbrook Laboratoires Ltd., Israel; Norbrook Laboratories, United Kingdom; Norbrook Laboratories Australia, Australia; VetMedic, Finland
  • Bovaclox dry cow (Cloxacillin and Ampicillin (veterinary use))
    MSD, New Zealand
  • Boviclox (veterinary use)
    Norbrook, United States
  • Bovimast (veterinary use)
    Cross Vetpharm Group, Ireland
  • Cloxaben T.S. (veterinary use)
    Serumber, Germany
  • Cloxacillin Norbrook (veterinary use)
    Norbrook, Austria
  • Cloxacillin-Benzathin (veterinary use)
    CPPharma, Germany
  • Cloxadry (Cloxacillin and Ampicllin (veterinary use))
    Bayer, Italy; Bayer Tiergesundheit, Austria
  • Cloxagel (Cloxacillin and Neomycin (veterinary use))
    Coophavet, France
  • Cloxalene (veterinary use)
    Fatro, Italy
  • Cloxalene Max (Cloxacillin and Ampicillin (veterinary use))
    Fatro, Italy
  • Cloxamam (veterinary use)
    Coophavet, France
  • Cloxamp (Cloxacillin and Ampicillin (veterinary use))
    Norbrook, New Zealand
  • Cloxavan (veterinary use)
    Vana, Austria
  • Cloxine (veterinary use)
    Virbac, France
  • Cuxavet TS Ogris (veterinary use)
    Ogris-Pharma, Austria
  • Diclomam (veterinary use)
    Vetoquinol, France
  • Dryclox (Cloxacillin and Ampicillin (veterinary use))
    Bayer New Zealand, New Zealand
  • Dry-Clox (veterinary use)
    Boehringer Ingelheim Vetmedica, United States
  • Dryclox Xtra (Cloxacillin and Ampicillin, + Aluminium Stearate (veterinary use))
    Bayer New Zealand, New Zealand
  • Drycloxacil (Cloxacillin and Ampicillin (veterinary use))
    Dopharma Veterinaire Farmaca, Netherlands
  • Drycloxa-Kel (veterinary use)
    Kela, Belgium
  • Elaclox (veterinary use)
    Norbrook Laboratories Australia, Australia
  • Juraclox L.A. (veterinary use)
    Jurox, Australia
  • Kloxerate (Cloxacillin and Ampicillin (veterinary use))
    VetMedic, Finland
  • Kloxerate (veterinary use)
    Zoetis Belgium, Belgium
  • Kloxerate DC Plus (Cloxacillin and Ampicillin (veterinary use))
    Zoetis Belgium, Belgium
  • Kloxerate Plus DC (Cloxacillin and Ampicillin (veterinary use))
    Pfizer Animal Health, Netherlands
  • Lactastop rood (Cloxacillin and Ampicillin (veterinary use))
    Boehringer Ingelheim Animal, Netherlands
  • Noroclox (veterinary use)
    Norbrook, New Zealand; Norbrook, South Africa; Norbrook Laboratories, United Kingdom; Norbrook Laboratories, Ireland; Norbrook Laboratories Australia, Australia
  • Noroclox DC (veterinary use)
    Norbrook Laboratories, Ireland
  • Opticlox (veterinary use)
    Norbrook, Netherlands; Norbrook Laboratories, United Kingdom; Norbrook Laboratories Australia, Australia
  • Orbenin (veterinary use)
    Ceva Santé Animale, France; Pfizer, Austria; Pfizer Animal Health, United Kingdom; Zoetis, Germany; Zoetis, Ireland; Zoetis, Italy; Zoetis Australia, Australia
  • Orbenin DC (veterinary use)
    Intervet, United States
  • Orbenin Dry Cow (veterinary use)
    Pfizer Animal Health, Netherlands; Wirtz, Netherlands; Zoetis, New Zealand
  • Orbenin Enduro (veterinary use)
    Zoetis Australia, Australia
  • Orbenin Extra DC (veterinary use)
    Pfizer Animal Health, South Africa
  • Orbenin Extra Dry Cow (veterinary use)
    Pfizer Animal Health, Netherlands; Zoetis, Switzerland
  • Orbenin Eye (veterinary use)
    Zoetis, New Zealand
  • Orbenin retard (veterinary use)
    Zoetis, Finland
  • Orbenor (veterinary use)
    Zoetis, France
  • Prevaclox (Cloxacillin and Ampicillin (veterinary use))
    Eurovet Animal Health, Netherlands
  • Seroclox (Cloxacillin and Ampicillin (veterinary use))
    Norbrook Laboratories, Austria
  • Syntarpen (veterinary use)
    Biowet Pulawy, Poland
  • Tarigermel (veterinary use)
    Qalian, France
  • Teat Seal Cross Vetpharm (Cloxacillin and Bismuth (veterinary use))
    Cross Vetpharm Group, Ireland
  • Vetoscon (veterinary use)
    Zoetis, Germany
  • Vetriclox (veterinary use)
    Ceva, Germany
  • Wedeclox (veterinary use)
    WDT, Germany
  • Cloxacillin-TS (veterinary use)
    Virbac, Switzerland; Virbac, Germany
  • Cloxasel-TS (veterinary use)
    Selecta, Germany
  • Cloxin TS-Retard (veterinary use)
    Veyx, Germany
  • Forticlox (Cloxacillin and Benzylpenicillin (veterinary use))
    Stricker, Switzerland
  • Mammin TS forte (veterinary use)
    aniMedica, Germany
  • Stapenor Retard (veterinary use)
    Bayer, Germany
  • A-Clox
    Acme, Bangladesh; Acme Lab, Myanmar
  • Amclocillin (Cloxacillin and Ampicillin)
    Tai Yu, Taiwan
  • Ampiclox (Cloxacillin and Ampicillin (veterinary use))
    Jurox, Australia; Zoetis, Finland; Zoetis, France; Zoetis Belgium, Belgium
  • Ampicloxacin (Cloxacillin and Ampicillin)
    Sinton, Taiwan; Tai Yu, Taiwan
  • Ampi-Kur (Cloxacillin and Ampicillin (veterinary use))
    Virbac, Switzerland
  • An Mei Lin
    Welman, China
  • Anaclosil
    Reig Jofre, Spain; Sanolabor, Slovenia
  • Ancocillin (Cloxacillin and Ampicillin)
    Ying Yuan, Taiwan
  • Aniclox (Cloxacillin and Ampicillin (veterinary use))
    aniMedica, Austria; aniMedica, Germany
  • Apo-Cloxi
    Apotex, Canada; Apotex, Hong Kong
  • Auropen
    Cirin, Pakistan
  • Axillin
    Foramen, Philippines
  • Boie Cloxacillin
    Boie, Philippines
  • Bovaclox (Cloxacillin and Ampicillin (veterinary use))
    Norbrook Laboratories, Ireland
  • Caxin
    Hovid, Philippines
  • Clobex
    Beximco, Bangladesh
  • Clocsamed
    Le Jumont, Philippines
  • Clopen
    Singapore Pharmawealth Lifesciences, Philippines
  • Clox
    Nutramedica, Philippines
  • Cloxa T.O.
    T.O. Chemicals, Thailand
  • Cloxacilina IPS
    IPS, Spain
  • Cloxacilina Normon
    Normon, Spain; Sanolabor, Slovenia
  • Cloxacilina Sodica L.CH.
    Laboratorio Chile, Chile
  • Cloxacillin
    Alkem, Tanzania
  • Cloxacillin ACS
    ACS Dobfar Generics, Norway
  • Cloxacillin Community Pharm
    Community Pharm PCL, Thailand
  • Cloxacillin Sinphar
    Sinphar, Taiwan
  • Cloxacillin SteriMax
    SteriMax, Canada
  • Cloxacillin Stragen
    Stragen, Norway; Stragen Nordic, Finland
  • Cloxacilline Panpharma
    Panpharma, France
  • Cloxacillin-Fresenius Vials
    Fresenius Kabi, South Africa
  • Cloxa-coli (Cloxacillin and Colistin (veterinary use))
    Virbac, Switzerland
  • Cloxahold
    Alkem, Tanzania
  • Cloxal
    Shanxi Taisheng, Philippines
  • Cloxalin
    Siam Bheasach, Thailand
  • Cloxamast (Cloxacillin and Ampicillin (veterinary use))
    Bimeda Animal Health, Ireland
  • Cloxamed TS (veterinary use)
    aniMedica, Poland
  • Cloxampicillin (Cloxacillin and Ampicillin)
    Union, Taiwan
  • Cloxampicin (Cloxacillin and Ampicillin)
    Panbiotic, Taiwan
  • Cloxamycin (veterinary use)
    Albrecht, Germany
  • Cloxasian
    Asian Pharm, Thailand
  • Cloxgen
    General Drugs House, Thailand
  • Cloxicap
    Renata, Bangladesh
  • Cloxil
    Doctor's Chemical Works, Bangladesh
  • Cloxin
    Medhaus, Philippines; Opsonin, Bangladesh; Pharmacare, South Africa
  • Cloxisyrup
    Renata, Bangladesh
  • Cloxi-Z
    Ziska, Bangladesh
  • Coliclox (Cloxacillin and Colistin (veterinary use))
    Virbac, France
  • Curaclox (Cloxacillin and Ampicillin (veterinary use))
    Eurovet Animal Health, Netherlands
  • Dariclox (veterinary use)
    Intervet, United States
  • Dicillin (Cloxacillin and Ampicillin)
    CCPC, Taiwan
  • Ekvacillin
    Meda, Iceland; Meda, Norway; Meda, Sweden
  • Encloxil
    Pharmacare, Philippines
  • Eraclox
    Unison, Philippines
  • Ficlox
    Sanofi-Aventis, Bangladesh
  • Gaofen
    General Sanyang Pharmaceutical Co Ltd, China
  • Gelstamp (Cloxacillin and Ampicillin (veterinary use))
    Zoetis, Germany
  • Gentamam (Cloxacillin and Gentamicin (veterinary use))
    Virbac, France
  • HI-Clox
    Hudson, Bangladesh
  • Isoxacillin
    Idaman Pharma, Malaysia
  • Izomast (Cloxacillin and Amoxicillin (veterinary use))
    Izo, Italy
  • Jielite (Cloxacillin and Ampicillin)
    Weikang Pharmaceutical, China
  • Kaifa (Cloxacillin and Ampicillin)
    General Sanyang Pharmaceutical Co Ltd, China
  • Kloxerate (Cloxacillin and Ampicillin (veterinary use))
    VetMedic, Finland
  • Kloxitas
    Umedica, Philippines
  • Lactaclox (Cloxacillin and Ampicillin (veterinary use))
    Norbrook, Netherlands; Norbrook, New Zealand; Norbrook Laboratories, United Kingdom; Norbrook Laboratories Australia, Australia; Scan Vet, Poland
  • Lewinex
    Lewison, Philippines
  • Lidoxin
    Unison, Hong Kong
  • Loxacin
    Square, Bangladesh
  • Loxavit Forte
    Vitamed, Israel
  • Mammicine (Cloxacillin and Colistin (veterinary use))
    Virbac, France
  • Mammitel (Cloxacillin and Colistin (veterinary use))
    Laboratoires Biové, France
  • Masticlox (Cloxacillin and Ampicillin (veterinary use))
    Dopharma Veterinaire Farmaca, Netherlands; Drwalewskie Zaklady Przemyslu Bioweterynaryjnego, Poland
  • Masticoli (Cloxacillin and Colistine (veterinary use))
    Virbac, France
  • Mastipent (Cloxacillin and Ampicillin (veterinary use))
    Merial, Austria; Merial, Germany
  • Medaclox
    SEA PharmaOptions, Philippines
  • Meiclox
    Meiji, Thailand
  • Meixam
    Meiji, Indonesia
  • Navaclox
    Navana, Bangladesh
  • Neomastipra Lac (Cloxacillin and Ampicillin (veterinary use))
    Laboratorios Hipra, Poland
  • Noroclox (veterinary use)
    Norbrook, South Africa
  • Noxylen
    Tylid, Philippines
  • Orbenil
    Sandoz, Israel
  • Orbenin
    GlaxoSmithKline, Spain
  • Orbenin (veterinary use)
    Zoetis, France
  • Orbenin L.A. (veterinary use)
    Pfizer Animal Health, United Kingdom; Zoetis, New Zealand
  • Orbénine
    Astellas, France
  • Oxaclen
    MedGen, Philippines
  • Pan-Cloxacillin
    Panpharma, Hong Kong
  • Pannox
    Panpharma-Meinz, Philippines
  • Penclodar (Cloxacillin and Ampicillin)
    Dar Al Dawa, Oman
  • Pharex Cloxacillin
    Pascual, Philippines
  • Pharmawealth Lab Cloxacillin
    Singapore Pharmawealth Lifesciences, Philippines
  • Phil Pharmawealth/Karnataka Cloxacillin Sodium
    Karnataka, Philippines
  • RiteMED Cloxacillin
    RiteMED, Philippines
  • Sinaclox
    Ibn Sina, Bangladesh
  • Sinclocillin (Cloxacillin and Ampicillin)
    Sinphar, Taiwan
  • Solaze
    Lloyd, Philippines
  • Staflocil
    Orion Pharma, Finland
  • Staphyclox
    Norma Hellas, Greece
  • Syntarpen (veterinary use)
    Biowet Pulawy, Poland
  • Teva-Cloxacillin
    Teva Canada, Canada
  • Upha Cloxacillin
    CCM, Malaysia
  • Viccillin S (Cloxacillin and Ampicillin)
    Meiji Seika Pharma, Japan
  • Wedeclox (veterinary use)
    WDT, Germany


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.