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Flucloxacillin Capsule: Uses, Dosage & Side Effects in Pakistan

Flucloxacillin Capsule (Flucloxacillin) ke quick uses, dose guide, side effects, warnings, aur buying price range.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated:

Prescription

Form

CAPSULE

Strength

250mg / 500mg

Manufacturer

GSK / local manufacturers

Estimated price

Price not listed

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What is Flucloxacillin Capsule used for?

  • Skin and soft tissue infections — cellulitis, impetigo, boils, furuncles, infected wounds
  • Osteomyelitis
  • Septic arthritis (staphylococcal joint infection)
Read full Uses guide →

How to take Flucloxacillin Capsule?

Adult dose: As prescribed — take on an empty stomach (30 minutes before food); complete the full course

Child dose: Weight-based dose — as prescribed by doctor; take on empty stomach

Read full Dosage guide →

Important warnings

  • TAKE ON AN EMPTY STOMACH — 30-60 minutes before food
  • For MSSA only — does not work in MRSA
  • If there is a history of penicillin allergy, always inform your doctor (cross-reactivity)

Flucloxacillin Capsule Uses, Dosage, Side Effects & Price in Pakistan

1. Quick Info (Mukhtasir Maloomat)

FieldDetails
Brand NameFloxapen / Fluclox
Generic NameFlucloxacillin
Strength250mg / 500mg
FormCapsule
Drug ClassBeta-lactamase Resistant Penicillin
ManufacturerGSK / local manufacturers
PrescriptionRx — do not take without a doctor's advice
PriceConfirm at the pharmacy
PackagingBlister pack / strip

2. What is Flucloxacillin? (Floxapen kya hai)

Flucloxacillin (Floxapen / Fluclox) is a beta-lactamase resistant penicillin antibiotic prescribed in Pakistan for Staphylococcal infections. It is effective against methicillin-sensitive Staphylococcus aureus (MSSA) — staph bacteria. It provides bactericidal action by inhibiting bacterial cell wall synthesis. It does not work against MRSA (methicillin-resistant Staph aureus). Taking it on an EMPTY STOMACH is essential — food significantly reduces absorption.

3. Uses (Fayde / Kis kaam aata hai)

  • Skin and soft tissue infections (SSTI) — cellulitis, impetigo, furuncles (boils), infected wounds
  • Osteomyelitis
  • Septic arthritis (staphylococcal joint infection)
  • Staphylococcal pneumonia
  • Staphylococcal endocarditis
  • Post-surgical wound infections (staphylococcal)

4. Who Should Take (Kis ko lena chahiye)

  • Patients with confirmed or suspected MSSA skin infections
  • Patients with bone or joint infections (osteomyelitis, septic arthritis)
  • Patients with post-surgical wound infections
  • As per doctor's prescription

5. When NOT to Take (Kab nahi lena chahiye)

  • Confirmed allergy to penicillin or flucloxacillin (cross-reactivity possible)
  • Suspected MRSA infection — flucloxacillin will not be effective
  • Viral infections (flu, common cold) — antibiotics do not work against viruses
  • For Streptococcal pharyngitis (tonsillitis) — amoxicillin is a better choice

6. Dosage (Kitni leni hai)

  • As prescribed — on an empty stomach (30 minutes before food)
  • 250mg or 500mg as prescribed; dose frequency is determined by your doctor
  • Do not exceed the prescribed dose; follow your doctor's instructions
  • If you miss a dose, take it as soon as you remember — however if you have already eaten, wait until the next empty-stomach time. Never take a double dose.

7. How to Take (Kaise leni hai)

  • Take it 30-60 minutes before food — this is the most important rule
  • Swallow the whole capsule with water
  • Do not stop even when symptoms feel better — to prevent antibiotic resistance
  • Take at regular time intervals (e.g., every 6 hours if prescribed 4 times daily)

8. Best Time (Kab leni chahiye)

  • 30-60 minutes before food
  • Follow the doctor's prescribed schedule

9. Empty Stomach — Essential

Taking it on an EMPTY STOMACH is the most important rule for this medicine. Taking it with or after food significantly reduces absorption and treatment may fail.

10. Warnings (Ihtiyat)

  • 30-60 minutes before food — this is non-negotiable
  • Rare but serious: jaundice, dark urine, pruritus (itching) — can occur during treatment or up to 6 weeks after — see a doctor immediately
  • If infection is not improving, see a doctor — it may be MRSA
  • Complete the prescribed duration — infection may return

11. Precautions (Ahm ehtiyaat)

  • Hepatotoxicity risk is higher in elderly patients, with high doses, and prolonged courses
  • Below 25°C; dry place; out of reach of children

12. Side Effects (Nuksanat)

  • Nausea, vomiting, diarrhea, abdominal pain
  • Urticaria / rash
  • Oral / vaginal candidiasis
  • Cholestatic hepatitis
  • Anaphylaxis (penicillin allergy)
  • Clostridioides difficile colitis (severe watery/bloody diarrhea)
  • Blood dyscrasias (rare)

13. Drug Interactions (Dawaon ke sath reaction)

  • Warfarin — INR may increase; monitor
  • Oral contraceptives — theoretical reduced efficacy; use extra contraception during the course
  • Probenecid — increases flucloxacillin levels
  • Methotrexate — methotrexate toxicity risk may increase
  • Rifampicin — used additively in MSSA endocarditis treatment
  • Inform your doctor of all medicines when getting a prescription

14. When to See Doctor (Kab doctor ke paas jayein)

  • Jaundice — see a doctor IMMEDIATELY (cholestatic hepatitis)
  • Dark urine + pale stools + itching
  • Severe rash, urticaria, symptoms of anaphylaxis
  • Severe watery or bloody diarrhea (C. diff)
  • Infection not improving within 3-4 days

15. Alternatives (Sasti Dusri Dawaein)

Brand NameCompanySalt (Generic)
Cefalexin brandsVariousCefalexin
AugmentinGSKAmoxicillin-Clavulanate (polymicrobial SSTIs)
Cloxacillin brandsVariousCloxacillin (same class)
Co-trimoxazoleVariousSulfamethoxazole-Trimethoprim (community MRSA — some areas)
DoxycyclineVariousDoxycycline (community MRSA option)

16. Price in Pakistan (Price kitni hai)

Pack SizePrice (Approx)
Capsule stripConfirm at pharmacy

17. FAQs (Aksar poochay jane walay sawalat)

Q: Flucloxacillin kis kaam aata hai?

A: Flucloxacillin (Floxapen) is an antibiotic used for Staphylococcal infections — particularly skin infections (cellulitis, boils, infected wounds), bone infection (osteomyelitis), and post-surgical wound infections.

Q: Flucloxacillin khane se pehle kyun lena chahiye?

A: Food significantly reduces the absorption of flucloxacillin — so it is essential to take it on an empty stomach (30 minutes before food). Taking it with food means the medicine does not work properly.

Q: Flucloxacillin ke side effects kya hain?

A: Common side effects: nausea, diarrhea, abdominal pain, rash. Serious (rare): cholestatic hepatitis, anaphylaxis. Inform your doctor immediately if jaundice appears.

Q: Flucloxacillin price Pakistan mein?

A: Price varies by pharmacy. Check the updated price at dawaai.pk or a local pharmacy. It is an Rx medicine — a doctor's prescription is required.

Q: Flucloxacillin MRSA mein kaam karta hai?

A: No — flucloxacillin is only effective against MSSA. It does not work against MRSA. Doctors prescribe the correct antibiotic based on test reports.

18. Medical Review (Medical jaiza)

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

19. Disclaimer (Zaroori tanbeeh)

The information on this page is for awareness only. It is not medical advice. Always consult your doctor or pharmacist before taking any medicine. PakVita is not responsible for any harm.

Brand alternatives, same-class options, and other medicines used for the same conditions as Flucloxacillin Capsule.

Frequently Asked Questions

Flucloxacillin kis kaam aata hai?

Flucloxacillin (Floxapen) is an antibiotic used for Staphylococcal infections — particularly skin infections (cellulitis, boils, infected wounds), bone infection (osteomyelitis), and post-surgical wound infections.

Flucloxacillin khane se pehle kyun lena chahiye?

Food significantly reduces the absorption of flucloxacillin — so it is essential to take it on an empty stomach (30 minutes before food). Taking it with food means the medicine does not work properly.

Flucloxacillin ke side effects kya hain?

Common side effects: nausea, diarrhea, abdominal pain, rash. Serious (rare): cholestatic hepatitis, anaphylaxis. Inform your doctor immediately if jaundice appears.

Flucloxacillin price Pakistan mein?

Price varies by pharmacy. Check the updated price at dawaai.pk or a local pharmacy. It is an Rx medicine — a doctor's prescription is required.

Flucloxacillin MRSA mein kaam karta hai?

No — flucloxacillin is only effective against MSSA (methicillin-sensitive Staphylococcus aureus). It does not work against MRSA (methicillin-resistant Staph aureus). For MRSA, doctors prescribe vancomycin or other medicines.

Sources

  1. DRAP Registered Products Database Drug Regulatory Authority of Pakistan
  2. WHO Model List of Essential Medicines, 23rd ed. (2023) World Health Organization
  3. British National Formulary (BNF) BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.