Flucloxacillin Capsule Dosage Guide in Pakistan

Taking the correct dose of Flucloxacillin (Floxapen / Fluclox) on an empty stomach is absolutely essential for treatment success. This guide provides complete information on the adult dose, child dose, and what to do about a missed dose.

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

Dosage Guide

Quick Answer

The standard adult dose of Flucloxacillin is typically 250–500mg 4 times daily (as prescribed). IMPORTANT: Take on an EMPTY STOMACH 30-60 minutes before food — food significantly reduces absorption. Complete the full prescribed course. Child dose is weight-based — determined by the doctor.

Dose at a Glance

Adult Dose

As prescribed — typically 250–500mg per dose

Usually 4 times daily (every 6 hours) — as directed by doctor

Max: Do not exceed prescribed daily dose

Child Dose (As per doctor's advice based on weight and age)

Weight-based dose — consult your doctor

As directed by your doctor

Missed Dose

If a dose is missed, take it as soon as you remember — but if you have already eaten, wait until the next empty stomach opportunity. Never take a double dose.

Overdose

If an excessive dose is taken, contact your doctor or emergency services immediately. Overdose can cause gastrointestinal and neurological effects.

Flucloxacillin Capsule Dosage (Kitni leni hai)

Taking the correct dosage and taking it on an EMPTY STOMACH — both are absolutely essential for effective Flucloxacillin treatment. Always follow your doctor's prescription.

Adult Dose (Baalgon ke liye)

As prescribed — typically 250–500mg per dose
Usually 4 times daily (every 6 hours) — as directed by doctor
On an EMPTY STOMACH (30-60 minutes before food) — non-negotiable rule

Starting Dose: As prescribed by your doctor Usual Dose: 250–500mg typically 4 times daily Max Daily Dose: Follow the limit prescribed by your doctor

Child Dose (Bachon ke liye)

Weight-based dose — determined by the doctor.

A child's dose is always decided by the doctor based on weight and age. The empty stomach rule also applies to children.

Khali Pait — Sabse Zaroori Rule

Rule	Detail
When to take	30-60 minutes before food
Why	Food reduces flucloxacillin absorption by ~50%
Consequence	Taking with food makes the antibiotic less effective

How to Take (Kaise leni hai)

Swallow the whole capsule with water
Take 30-60 minutes before food — on an empty stomach
Take at regular time intervals (e.g., every 6 hours if 4 times daily)
Complete the full course — do not stop even if symptoms improve

Duration (Kitne din)

Infection	Typical Duration
Skin infections (SSTI)	5–7 days
Osteomyelitis	Weeks — determined by specialist
Septic arthritis	Weeks — determined by specialist

Always follow the duration prescribed by your doctor.

Missed Dose (Dose chhoot jaye to kya karein)

If a dose is missed, take it as soon as you remember — but if you have already eaten, wait until the next empty stomach opportunity. Never take a double dose.

Overdose (Zyada Dose)

If you take more than the prescribed amount, seek emergency medical help immediately.

Dose Summary Table

Patient	Dose	Notes
Adult	As prescribed (typically 250–500mg 4x daily)	Empty stomach — 30 min before food
Child	Weight-based — consult doctor	Empty stomach rule applies

The information in this guide is for educational purposes only. Always confirm the dose with your doctor or pharmacist.

Frequently Asked Questions

Flucloxacillin kitni dose leni chahiye?

The adult dose is typically 250–500mg 4 times daily — but always follow your doctor's prescription. The dose depends on the severity of the infection.

Flucloxacillin khana kha kar le sakte hain?

No — flucloxacillin must be taken on an empty stomach. Food significantly reduces its absorption and treatment may fail.

Flucloxacillin kitne din leni hai?

Typically 5–7 days for skin infections; several weeks for osteomyelitis or serious infections. Always complete the prescribed duration — do not stop in the middle.

Dose bhool jaye to kya karein?

Take it as soon as you remember — but if you have already eaten, wait until the next empty stomach opportunity. Never take a double dose.

Bacchon ko flucloxacillin dena safe hai?

Yes, under doctor supervision — the dose is calculated based on weight and age. The empty stomach rule also applies to children.

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

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Sibling medicines in the Antibiotics class.

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Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
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.