Home/Drugs By Ailments / Cloxacillin

Cloxacillin

Uses of Cloxacillin

Cloxacillin is a penicillin-type antibiotic used to treat bacterial infections caused by Staphylococcus aureus and other penicillinase-producing gram-positive bacteria.

Cloxacillin is commonly used for:

• Skin and soft tissue infections: Treats impetigo, boils, cellulitis, infected wounds, and other bacterial skin infections caused by Staphylococcus aureus.
• Bone and joint infections (osteomyelitis and septic arthritis): Used for bacterial infections of the bones and joints that require an antibiotic effective against staphylococci.
• Respiratory tract infections: Treats staphylococcal pneumonia and other lower respiratory infections caused by susceptible bacteria.
• Endocarditis: Used in the treatment of bacterial infection of the heart valves caused by Staphylococcus aureus.
Septicaemia (bloodstream infections): Used in the treatment of serious bloodstream infections caused by susceptible staphylococci.
Post-operative infections: Used to treat staphylococcal infections associated with surgical procedures.

Side effects of Cloxacillin

  • Gastrointestinal disturbances such as nausea, vomiting, diarrhoea, and abdominal pain

  • Hypersensitivity reactions such as rash, urticaria, fever, and joint pains

  • Temporary increases in liver enzymes

  • Pain and inflammation at injection sites

How Cloxacillin works

  • Cloxacillin works by preventing bacteria from building and maintaining their protective outer cell wall, which is essential for their survival.
  • It belongs to the beta-lactam group of antibiotics and is classified as a penicillinase-resistant penicillin specifically designed to work against bacteria that produce penicillinase (a type of beta-lactamase enzyme that destroys regular penicillin).
  • Cloxacillin binds to proteins called penicillin-binding proteins (PBPs) located on the inner membrane of bacterial cell walls. These PBPs are responsible for cross-linking the structural molecules (peptidoglycan strands) that form the bacterial cell wall. By attaching to PBPs and blocking their activity, Cloxacillin prevents the final step of cell wall assembly.
  • Without a structurally intact cell wall, bacteria cannot withstand the internal pressure of their own cell contents, causing them to swell and rupture. This leads to bacterial cell death.
  • Unlike standard penicillin, Cloxacillin is stable against breakdown by the penicillinase enzyme produced by Staphylococcus aureus, making it effective against susceptible penicillinase-producing staphylococci.

Certified content

Written By

docImg
Dr. Michelle FrankMedical Content Writer| 10 years

Doctor of Medicine

Reviewed By

Dr. Chhavi Rosha
Dr. Chhavi RoshaMedical Content Writer| 10 years

BAMS, FMC, MD Resident

Expert Advice

Dosage Forms Available

  • Cloxacillin is available for oral use as (capsules and syrup). It is also available for preparing solutions for intramuscular and intravenous administration (powder).

Age and Dose Restrictions

  • Cloxacillin is meant for adults and children.

Contraindications

  • Cloxacillin should not be administered to patients with a known allergy to any penicillin antibiotic. It is also contraindicated in patients with a history of allergies, asthma, and hay fever.

Other Medications to Avoid

  • Cloxacillin may interact with oral contraceptives (such as norethisterone), anticoagulants (like warfarin), and antimetabolites (such as methotrexate). It can also interact with uricosurics (such as probenecid), NSAIDs (like ibuprofen and diclofenac), and aminoglycosides (such as neomycin).

Overdose and Missed Dose

  • An overdose of Cloxacillin may cause symptoms such as nausea, vomiting, diarrhoea, and in severe cases, seizures particularly in patients with kidney impairment. If you experience these symptoms after taking more than the prescribed dose, contact your doctor or seek emergency medical attention immediately.
  • If you miss a dose of Cloxacillin, take it as soon as you remember. If it is nearly time for your next dose, skip the missed dose and continue with your regular schedule. Do not take two doses at the same time. Completing the full prescribed course of Cloxacillin is important to ensure the bacterial infection is completely cleared and to prevent antibiotic resistance.

Management of Side Effects

Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening of any symptoms, please consult your doctor.

  • Drink plenty of fluids to manage gastrointestinal disturbances like nausea, vomiting, and diarrhoea.

  • Rest and refrain from strenuous activity if you feel weak or tired after taking the medicine.

Use in Driving and Operating Machinery

  • Cloxacillin does not usually affect your ability to drive or operate heavy machinery. However, if you feel dizzy or sleepy after taking this medicine, avoid driving or operating machinery until these effects have worn off.

Use in Pregnancy and Lactation

  • Cloxacillin is generally considered safe for use during pregnancy. It should be used during pregnancy only if clearly needed and prescribed by a doctor. During lactation, cloxacillin is excreted in small amounts into breast milk and is typically considered safe for breastfeeding mothers. However, caution is advised. Always consult your doctor before using cloxacillin during pregnancy or while breastfeeding.

Caution in Other Conditions

  • Cloxacillin should be used cautiously in patients with significant renal impairment (creatinine clearance < 10 mL/min). It should also be used with caution in patients with hepatic impairment and bleeding disorders.

Special Dietary and Lifestyle Recommendations

  • To help manage bacterial infections, maintain good hygiene practices to prevent the spread of bacteria.

  • Drink plenty of water to help flush out toxins from your system.

  • Regular, moderate physical activity can also help boost your immune system.

Frequently asked questions

There is no known impact of Cloxacillin on sleep. However, if you experience unusual drowsiness or insomnia after taking this medicine, you should consult your doctor.

Cloxacillin is not known to impact fertility. However, if you have concerns about this, it would be best to discuss them with your doctor.

Cloxacillin should be taken as directed by your doctor, who will prescribe the medication depending on the type and severity of the infection being managed.

The onset of action for Cloxacillin can vary depending on the type of infection and individual patient factors. It would be incorrect to suggest a specific time frame without knowledge of these variables.

The best time to take Cloxacillin is decided by your doctor based on your condition.

The duration of treatment with Cloxacillin varies depending on the type and severity of the infection and should be determined by your doctor.

Cloxacillin usually requires a prescription and is not typically available over the counter.

Terms & Conditions


List of medicines for Cloxacillin

Aclox 500 MG Powder For Injection 1
Aclox 500 MG Powder For Injection 1
Osper Formulations Pvt Ltd
Pack of 1 Units
₹6.3
MRP ₹7.88
20% OFF
Bioclox 500 MG Capsule 10
Bioclox 500 MG Capsule 10
Zydus Healthcare Ltd
Pack of 10 Units
₹16.33
MRP ₹20.41
20% OFF
Clocilin 500 MG Capsule 10
Clocilin 500 MG Capsule 10
Pci Pharmaceuticals
Pack of 10 Units
₹30
MRP ₹37.5
20% OFF
Aclox 250 MG Injection 1
Aclox 250 MG Injection 1
Osper Formulations Pvt Ltd
Pack of 1 Units
₹3.38
MRP ₹4.22
20% OFF
Staphonex 500Mg Injection 1
Staphonex 500Mg Injection 1
Fusion Healthcare Pvt Ltd
Pack of 1 Units
₹291.75
MRP ₹364.69
20% OFF
Staphonex 1gm Injection 1
Staphonex 1gm Injection 1
Fusion Healthcare Pvt Ltd
Pack of 1 Units
₹561.75
MRP ₹702.19
20% OFF
Klox 250 Mg Capsule 15
Klox 250 Mg Capsule 15
Hetero Healthcare Ltd
Pack of 15 Units
₹22.12
MRP ₹27.65
20% OFF
Myoclox Cv 625mg Tablet 6
Myoclox Cv 625mg Tablet 6
S.r.pharmaceuticals
Pack of 6 Units
₹90
MRP ₹112.5
20% OFF

Subscribe

Claim your complimentary health and fitness tips subscription and stay updated on our newest promotions.

Registered Office Address

Intellihealth Solutions Private Limited
Unit-301 & 304, Lightbridge Tunga Village, Saki Vihar Rd, Chandivali, Powai, Mumbai, Maharashtra, India, 400072.
CIN: U62099MH2019PTC320566
Telephone:09240250346

Grievance Officer

Name: Kishor Kumar

Download Truemeds

Manage your health with ease Download Truemeds today!Get easy access to medicine refills, health information, and more. With our app, you'll never have to wait in line again. Download now and start taking control of your health.
Playstore
Apple App  Store

Contact Us

Our customer representative team is available 7 days a week from 9 am - 9 pm.


v4.28.2

copyright

2026 - Truemeds | All rights reserved. Our content is for informational purposes only. See additional information.

Trust Certified

Our Payment Partners

paymentPartnerpaymentPartnerpaymentPartnerpaymentPartner
paymentPartnerpaymentPartnerpaymentPartnerpaymentPartner