Generic Name Cloxacillin Sodium
Bangla Name ক্লক্সাসিলিন সোডিয়াম
Available brands 37
Language

Introduction

A semi-synthetic penicillin antibiotic which is a chlorinated derivative of oxacillin.

Uses

Cloxacillin is an antibiotic agent used for the treatment of beta-hemolytic streptococcal and pneumococcal infections as well as staphylococcal infections.

Cloxacillin is indicated for the treatment of beta-hemolytic streptococcal, pneumococcal, and staphylococcal infections (including beta-lactamase producing organisms).

Associated Conditions

  • Infection caused by staphylococci
  • Infections caused by penicillinase-producing staphylococci
  • Pneumococcal Infection
  • Streptococcal Infections

Pharmacodynamics

Cloxacillin is a semisynthetic antibiotic in the same class as penicillin. Cloxacillin is for use against staphylococci that produce beta-lactamase.

Mechanism of Action

By binding to specific penicillin-binding proteins (PBPs) located inside the bacterial cell wall, cloxacillin inhibits the third and last stage of bacterial cell wall synthesis. Cell lysis is then mediated by bacterial cell wall autolytic enzymes such as autolysins; it is possible that cloxacillin interferes with an autolysin inhibitor.

Absorption

Well absorbed from the gastrointestinal tract.

Protein Binding

Cloxacillin is approximately 94% protein-bound in plasma, primarily to albumin.

Toxicity

Oral LD50 in rat and mouse is 5000 mg/kg. Intravenous LD50 in rat is 1660 mg/kg. Symptoms of overdose include wheezing, tightness in the chest, fever, itching, bad cough, blue skin color, fits, and swelling of face, lips, tongue, or throat.

Food Interactions

  • Take on an empty stomach. Orally administered cloxacillin should be taken 1-2 hours prior to meals as the presence of food in the stomach and intestine reduces drug absorption.

Dosage

প্রাপ্তবয়স্কদের প্রচলিত মাত্রা-
খাওয়ার জন্য: ৫০০ মিগ্রা দিনে চার বার আহারের আধা থেকে এক ঘন্টা আগে।
ইনজেকশন হিসেবে:
  • মাংসপেশীতে ইনজেকশন হিসেবে: ২৫০ মিগ্রা চার থেকে ছয় ঘন্টা পর পর।
  • শিরাপথে ইনজেকশন হিসেবে: ৫০০ মিগ্রা চার থেকে ছয় ঘন্টা পর পর। প্রয়োজনবোধে উপরোল্লিখিত মাত্রাকে দ্বিগুণ করা যেতে পারে।
  • প্লুরাল কেভিটিতে ইনজেকশন হিসেবে: ৫০০ মিগ্রা দিনে এক বার। 
  • জয়েন্ট কেভিটিতে ইনজেকশন হিসেবে: ৫০০ মিগ্রা দিনে এক বার।

শিশুদের প্রচলিত মাত্রা-
খাওয়ার জন্য: ২ থেকে ১০ বৎসর পর্যন্ত- প্রাপ্তবয়স্ক মাত্রার অর্ধেক। ২ বৎসরের নীচে- প্রাপ্তবয়স্ক মাত্রার এক-চতুর্থাংশ।
ইনজেকশন হিসেবে:
  • মাংসপেশীতে ইনজেকশন হিসেবে: ২৫০ মিগ্রা এর সাথে ১.৫ মিলি কিংবা ৫০০ মিগ্রা এর সাথে ২ মিলি ওয়াটার ফর ইনজেকশন বিপি মিশিয়ে দ্রবীভূত করতে হবে।
  • শিরাপথে ইনজকেশন হিসাবে: ৫০০ মিগ্রা এর সাথে ৫-১০ মিলি ওয়াটার ফর ইনজকেশন বিপি মিশিয়ে দ্রবীভূত করতে হবে। এরপর এই দ্রবণকে তিন থেকে চার মিনিট ধরে ধীরে ধীরে শরীরে প্রয়োগ করতে হবে। ক্লক্সাসিলিন ইনজকেশনকে ইনফিউশন উপযোগী যে কোন তরলে মিশিয়ে দেয়া যায় অথবা যথাযথ ভাবে হালকা করে ড্রপি টউিবে তিন থেকে চার মিনিট ধরে ধীরে ধীরে প্রয়োগ করা যায়।
  • প্লুরাল কেভেটিতে ইনজেকশন হিসেবে: ৫০০ মিগ্রা এর সাথে ৫ থেকে ১০ মিলি ওয়াটার ফর ইনজকেশন বিপি মিশিয়ে দ্রবীভূত করে প্রয়োগ করতে হবে।
  • জয়েন্টে কেভেটিতে ইনজেকশন হিসেবে: ৫০০ মিগ্রা এর সাথে অনধকি ৫ মিলি ওয়াটার ফর ইনজকেশন বিপি অথবা ০.৫% লিগনোকেইন হাইড্রোক্লোরাইড দ্রবণ মিশিয়ে দ্রবীভূত করে প্রয়োগ করতে হবে।

Frequently Asked Questions About Cloxacillin Sodium

1. What is Cloxacillin Sodium?

Cloxacillin Sodium is a beta-lactam antibiotic used to treat bacterial infections, especially those caused by penicillinase-producing staphylococci.

2. What type of infections does Cloxacillin treat?

It is used to treat:

  • Skin and soft tissue infections
  • Respiratory tract infections
  • Bone and joint infections
  • Endocarditis
  • Septicemia

3. How does Cloxacillin work?

It inhibits bacterial cell wall synthesis, leading to bacterial cell death.

4. Is Cloxacillin effective against MRSA?

No, MRSA (Methicillin-resistant Staphylococcus aureus) is resistant to Cloxacillin.

5. How should I take Cloxacillin?

It is best taken on an empty stomach (1 hour before or 2 hours after a meal) with a full glass of water.

6. What is the usual dosage for adults?

Typically, 250-500 mg every 6 hours, but dosage may vary depending on the infection and doctor's advice.

7. Can children take Cloxacillin?

Yes, but the dosage should be adjusted based on weight and prescribed by a doctor.

8. Can I take Cloxacillin with food?

No, food may reduce absorption. Take it on an empty stomach.

9. How long should I take Cloxacillin?

Complete the full course as prescribed by your doctor, usually 7-14 days, depending on the infection.

10. What happens if I miss a dose?

Take it as soon as you remember, but skip it if it’s almost time for the next dose. Do not double the dose.

11. Can I stop taking Cloxacillin if I feel better?

No, stopping early can cause the infection to return or lead to antibiotic resistance.

12. What are the common side effects of Cloxacillin?

Common side effects include:

  • Nausea
  • Vomiting
  • Diarrhea
  • Stomach pain
  • Skin rash

13. Can Cloxacillin cause allergic reactions?

Yes, symptoms may include rash, itching, swelling, or difficulty breathing. Seek immediate medical help if severe.

14. Is Cloxacillin safe for pregnant women?

It is generally considered safe, but consult your doctor before use.

15. Can breastfeeding mothers take Cloxacillin?

Yes, but small amounts may pass into breast milk. Consult a doctor before use.

16. Does Cloxacillin interact with other medications?

Yes, it may interact with:

  • Oral contraceptives (may reduce effectiveness)
  • Probenecid (may increase Cloxacillin levels)
  • Blood thinners like Warfarin

17. Can Cloxacillin cause diarrhea?

Yes, it can disturb gut bacteria. If severe or bloody diarrhea occurs, seek medical help.

18. Does Cloxacillin affect kidney function?

It is generally safe, but patients with kidney disease should take it with caution.

19. Can Cloxacillin cause liver problems?

Rarely, it may cause liver enzyme elevation. Monitor liver function if using long-term.

20. What should I do if I overdose on Cloxacillin?

Seek medical attention immediately. Symptoms may include severe nausea, vomiting, or convulsions.

21. Can I drink alcohol while taking Cloxacillin?

Alcohol may increase side effects like stomach upset, so it is best to avoid it.

22. Can I take Cloxacillin with painkillers?

Yes, it can be taken with paracetamol or ibuprofen if needed.

23. Does Cloxacillin cause yeast infections?

Yes, prolonged use may lead to fungal overgrowth, causing yeast infections.

24. Can Cloxacillin be used to treat a cold or flu?

No, it only works against bacterial infections, not viral infections.

25. Is Cloxacillin available over the counter?

No, it requires a prescription.

26. How should Cloxacillin be stored?

Store at room temperature (below 25°C) away from moisture and sunlight.

27. Can Cloxacillin cause dizziness?

It is not common, but some people may experience dizziness.

28. Does Cloxacillin affect blood sugar levels?

It is unlikely, but diabetics should monitor blood sugar levels.

29. Can Cloxacillin be used for urinary tract infections (UTIs)?

It is not the first choice for UTIs; other antibiotics are more effective.

30. Can Cloxacillin treat pneumonia?

Yes, if caused by susceptible bacteria, but other antibiotics are often preferred.

31. Does Cloxacillin affect birth control pills?

Yes, it may reduce their effectiveness. Use additional contraception.

32. Can I take Cloxacillin if I have a penicillin allergy?

No, it is a penicillin-type antibiotic and can cause allergic reactions.

33. Can Cloxacillin cause joint pain?

Rarely, some patients may experience joint pain.

34. Can I take Cloxacillin before surgery?

Only if prescribed by a doctor to prevent bacterial infections.

35. Can Cloxacillin be used for acne?

It is not commonly used for acne; other antibiotics like doxycycline are preferred.

36. Can I take Cloxacillin for an ear infection?

Yes, if the infection is caused by susceptible bacteria.

37. How quickly does Cloxacillin start working?

Improvement is usually seen within 24-48 hours.

38. Can Cloxacillin cause a bad taste in the mouth?

Yes, some people may experience an unusual taste.

39. Does Cloxacillin cause sun sensitivity?

No, but it is still good to use sun protection.

40. Can I take probiotics with Cloxacillin?

Yes, probiotics may help prevent diarrhea.

41. Can Cloxacillin be given through an IV?

Yes, it is available in both oral and IV forms.

42. Is Cloxacillin used in dental infections?

Yes, it may be used for dental abscesses.

43. Can Cloxacillin be taken for long-term infections?

Yes, but long-term use should be monitored by a doctor.

44. Does Cloxacillin work against E. coli?

No, it is not effective against E. coli.

45. Can Cloxacillin be used for animal infections?

Yes, but veterinary dosage differs.

46. Can I open Cloxacillin capsules?

It is best to swallow whole unless advised otherwise.

47. Can I drive while taking Cloxacillin?

Yes, unless you experience dizziness.

48. Does Cloxacillin expire?

Yes, do not use expired medication.

49. Does Cloxacillin affect sleep?

No, but some people may experience mild restlessness.

Medical review

Last reviewed: 24 Jul 2026

Medically reviewed by:

This is general information, not personal medical advice. Consult a doctor before taking any medicine.

Taking medicines without doctor's advice can cause long-term problems.
Brand medicines containing Cloxacillin Sodium