How does flucloxacillin work?
Flucloxacillin attacks the bacterial cell wall, preventing bacteria from growing and multiplying. This helps clear up the infection and stop it from spreading.
What is flucloxacillin used to treat?
Flucloxacillin is commonly prescribed for:
- Skin infections (such as impetigo, cellulitis, and infected wounds)
- Bone and joint infections (such as osteomyelitis)
- Chest infections (such as pneumonia and bronchitis)
- Ear, nose, and throat infections
- Endocarditis (a rare but serious heart infection)
Who can take flucloxacillin?
Most adults and children, including babies over 1 month old, can take flucloxacillin if they have a confirmed or suspected bacterial infection.
Who might not be able to take flucloxacillin?
Flucloxacillin may not be suitable if you:
- Are allergic to penicillin or other beta-lactam antibiotics
- Have had jaundice or liver problems caused by flucloxacillin before
- Have kidney or liver disease (your dose may need adjusting)
Can I take flucloxacillin if I’m pregnant or breastfeeding?
Flucloxacillin is generally safe to take during pregnancy and breastfeeding, but always check with your doctor before starting any new medication.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s nearly time for your next dose, skip the missed one—don’t take two doses at once.
How effective is flucloxacillin?
Flucloxacillin is highly effective when taken as directed. Most people start feeling better within a few days, but it’s important to finish the full course to prevent antibiotic resistance.
What should I do if I take too much?
Taking too much flucloxacillin may cause stomach pain, nausea, or diarrhoea. If you experience severe symptoms, seek medical help immediately.
What dose of flucloxacillin is usually taken?
The typical doses are:
- Adults: 250mg to 500mg four times daily
- Children: The dose depends on age and weight
It’s usually taken for 5 to 7 days, but longer courses may be needed for more serious infections.
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What are the side effects of flucloxacillin?
Most people tolerate flucloxacillin well, but common side effects include:
Serious side effects, such as allergic reactions or liver problems, are rare but require urgent medical attention.
How should I take flucloxacillin?
Flucloxacillin is taken as capsules or liquid and should be swallowed with a full glass of water. To get the best effect, take it on an empty stomach—at least 1 hour before or 2 hours after food.
When should flucloxacillin be taken?
Flucloxacillin is usually taken four times a day (every 6 hours) to keep a constant level of medicine in your body.
What are the brand names for flucloxacillin?
Flucloxacillin is usually prescribed as a generic medicine, but branded versions may also be available.
Final thoughts
Flucloxacillin is an effective antibiotic for treating bacterial infections. To get the best results, take it exactly as prescribed and finish the full course, even if you feel better. If you have any concerns about side effects or effectiveness, speak to your doctor or pharmacist.
