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Author Details

Written By
P. Thirumal Reddy
B. Pharm

Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 31 Mar 2026 | 09:31 AM (IST)

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Quick Summary
CLOXACILLIN
Last updated on 31 Mar 2026 | 09:31 AM (IST)
CLOXACILLIN
Background and Date of approval CLOXACILLIN
Cloxacillin was initially approved by the United States Food and Drug Administration (FDA) on March 31, 1962.
Uses of CLOXACILLIN
Cloxacillin is used in the treatment of skin and soft tissue infections, respiratory tract infections, bone and joint infections, and other conditions caused by penicillinase-producing bacteria.
How is CLOXACILLIN administered?
Cloxacillin can be administered via injection by healthcare provider. The appropriate route of administration is determined based on factors such as infection severity and patient condition. Always follow healthcare provider guidance for the correct administration method and dosage of this medication.
Side Effects of CLOXACILLIN
Cloxacillin use may result in a range of side effects, including common ones like gastrointestinal disturbances (nausea, vomiting, diarrhea), skin reactions (rash, itching), and injection site reactions (IV use). Serious side effects includes severe allergic reactions (swelling, breathing difficulties), severe skin reactions (Stevens-Johnson syndrome), gastrointestinal effects (Clostridium difficile infection, severe diarrhea), liver impact (jaundice, enzyme changes), blood disorders (low blood cell counts), drug interactions, superinfections, kidney function changes, and potential dizziness/drowsiness.
Warnings
Many signs of allergic reaction, like rash, swelling, or difficulty breathing can occur while on Cloxacillin. Persistent severe diarrhea can also occur which can be a signal of a dangerous. gut infection. Rare blood disorders can occur while using this medication. Yellowing of the skin or eyes, dark urine, or abdominal pain might indicate liver problems. Stopping early this medication can lead to incomplete treatment and antibiotic resistance.
Precautions
If you notice unusual bleeding, bruising, or frequent infections, while using Cloxacillin inform your healthcare provider. Watch for new or worsening symptoms during treatment, as prolonged use might lead to secondary infections. Rapid swelling, difficulty breathing, and severe rashes need urgent medical attention. Those with kidney issues might need regular monitoring by the healthcare professional. Complete the full course of this medicationas prescribed by the health care professional.
Word of Advice
Before starting Cloxacillin, inform your healthcare provider about any allergies, especially to antibiotics, and your complete medical history, including kidney or liver problems. Follow the prescribed dosage and complete the full course, even if symptoms improve. If you're pregnant, breastfeeding, or have diabetes, consult your healthcare provider before using this medication. Avoid excessive alcohol consumption and be cautious if driving or operating machinery, as dizziness or drowsiness might occur. Report any unusual or severe side effects promptly, such as rash or difficulty breathing. Individuals with renal or liver issues may need dosage adjustments, and elderly individuals require close monitoring for serious side effects. Be aware of potential drug interactions, and store this medication as instructed. By following these precautions, you can improve the safe and effective use of this medication while minimizing potential risks.
Frequently Asked Questions
Q1.
Can I sunbathe or use tanning beds while on Cloxacillin?
Cloxacillin itself is not known to cause photosensitivity, but skin infections may be sensitive. It's advisable to protect your skin from excessive sun exposure while on antibiotics.
Q2.
Can I use Cloxacillin for viral infections like the flu or common cold?
No, Cloxacillin is an antibiotic effective against bacterial infections. It won't work against viral infections like the flu or common cold. Using antibiotics inappropriately can contribute to antibiotic resistance.
Q3.
How long does it take for Cloxacillin to start working?
The onset of action can vary, but you might start to notice improvement in your symptoms within a few days of starting treatment. It's important to complete the full course as prescribed to ensure the infection is fully treated.
Q4.
What should I do if I miss a dose?
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double up on doses.
Q5.
What should I do if I experience severe diarrhea while on Cloxacillin?
Severe or persistent diarrhea could indicate a Clostridium difficile infection. Contact your healthcare provider immediately if you experience this, as it may require specific treatment.
Q6.
Can I continue using probiotics while on Cloxacillin?
Discuss the use of probiotics with your healthcare provider. They can advise you on whether probiotics might help maintain a healthy gut balance while on antibiotics.
References
- Jiangxi Xierkangtai Pharmaceutical Co., Ltd, US Food and Drug Administration, [Issued on 07th 2022] [Accessed on 16th August 2023], https://www.fda.gov.ph/fda-advisory-no-2022-0485-product-recall-of-specific-batch-of-cloxacillin-as-sodium-500-mg-capsule-philclox/
- JB Bru et al, Role of intravenous Cloxacillin in inpatient infections, Med Mal Infect,[Published on 2012] [Accessed on 16th August 2023], https://pubmed.ncbi.nlm.nih.gov/22542764/
- J Loulerge; Changes in microbial ecology and use of cloxacillin; [Published on 1994] [Accessed on 16th August 2023], https://pubmed.ncbi.nlm.nih.gov/7963470/
- Victor Manuel Martinez Taboada; Cloxacillin based therapy in severe septic bursitis; [Published on 2009] [Accessed on 16th August 2021], https://pubmed.ncbi.nlm.nih.gov/19576835/
Disclaimer
The drug information on this page is not a substitute for medical advice, it is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.






