FLUCLOXACILLIN
Background and Date of Approval
Flucloxacillin belongs to the class of beta-lactam antibiotics.
Uses
Flucloxacillin is used to treat various bacterial infections caused by susceptible organisms. It finds application in skin and soft tissue infections such as boils, cellulitis, and impetigo, as well as bone and joint infections like osteomyelitis and septic arthritis. It is also used for certain respiratory tract infections caused by susceptible bacteria. Its effectiveness against staphylococcus species, including Staphylococcus aureus, makes it valuable in treating staphylococcal infections. Additionally, it might be used for prevention against bacterial endocarditis during certain dental or surgical procedures in individuals with specific heart conditions.
How is it administered?
Flucloxacillin is available in various forms, including oral capsules, oral suspensions, and injectable forms for intravenous use. The route of administration depends on the type and severity of the infection being treated.
Side Effects
Flucloxacillin use can lead to a range of side effects, with common ones like gastrointestinal disturbances like nausea, vomiting, diarrhea, skin rash, and yeast infections due to alterations in normal bacterial balance. Mild digestive upset, changes in taste, and pain or inflammation at injection sites (in the case of intravenous administration) may occur. Notably, serious side effects are infrequent but can include severe allergic reactions, such as difficulty breathing and swelling, and potentially life-threatening skin reactions like Stevens-Johnson syndrome. Liver dysfunction might manifest as jaundice or abdominal discomfort.
Warnings
Flucloxacillin can cause severe allergic reactions, including anaphylaxis. Although rare, serious skin reactions like Stevens-Johnson syndrome can occur with flucloxacillin use. It may lead to liver problems, such as jaundice and hepatic impairment. This medication can lead to Clostridium difficile-associated diarrhea (CDAD), potentially causing severe gastrointestinal issues.
Precautions
If severe allergic reactions occur, require immediate medical attention. If you have a history of liver problems, close monitoring is necessary during flucloxacillin use. Individuals with kidney issues may require dosage adjustments to ensure proper medication clearance. Complete the entire prescribed course of this medication, even if symptoms improve earlier, to prevent antibiotic resistance.
Word of Advice
Inform your healthcare provider about any allergies, particularly to penicillin antibiotics, and any previous adverse reactions to antibiotics before starting Flucloxacillin. Patients with liver conditions or renal impairment require close monitoring, as the medication is metabolised in the liver and excreted through the kidneys. Complete the full prescribed course to prevent antibiotic resistance and inform your doctor of any underlying medical conditions, pregnancy, breastfeeding status, or concurrent medications. Be cautious of potential interactions, and report immediately any severe side effects, including severe skin reactions or allergic responses. If you experience unusual symptoms, contact your healthcare provider and adhere to storage instructions, keeping the medication away from children and pets. Consult your healthcare provider for advice based on your specific medical situation.
References
Mastroviti S, Cassarino G. La Flucloxacillina,. G Bacteriol Virol Immunol.[Published on July 1975] [Accessed on 29th Aug 2023], https://pubmed.ncbi.nlm.nih.gov/1234594/ Aurobindo Pharma - Milpharm Ltd., Electronic Medicines Compendium (EMC), [Revised on 29th August 2023] [Accessed on 29th Aug 2023], https://www.medicines.org.uk/emc/product/545/smpc#gref
Frequently Asked Questions
Can Flucloxacillin cause photosensitivity?
Flucloxacillin isn't a known cause of photosensitivity (increased sensitivity to sunlight). However, certain skin reactions could occur with sun exposure due to the infection or other factors.
What should I do if I miss a dose of Flucloxacillin?
If you miss a dose, take it as soon as you remember. If it's close to the time for the next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to make up for a missed one.
Can Flucloxacillin interfere with birth control pills?
Flucloxacillin can potentially reduce the effectiveness of birth control pills. If you're taking oral contraceptives, consider using an additional form of contraception while on Flucloxacillin and consult your healthcare provider.
Can I stop taking Flucloxacillin if my symptoms improve?
No, completing the full course of Flucloxacillin as prescribed is important, even if your symptoms improve before the medication is finished. Stopping early can lead to incomplete treatment and antibiotic resistance.
How long does It take for Flucloxacillin to work?
The time it takes for Flucloxacillin to work can vary based on the type and severity of the infection. Some symptom improvement may be noticed within a few days, but completing the full course as prescribed is important.
Should I be concerned about injection site pain or inflammation?
For individuals receiving intravenous (IV) Flucloxacillin, pain, redness, or inflammation at the injection site is possible. Inform your healthcare provider if you experience these symptoms.