FLUCLOXACILLIN
Flucloxacillin Capsules: Caramel and Black capsules containing 250 mg or 500 mg flucloxacillin as Flucloxacillin Sodium BP.
Flucloxacillin Vials for Injection: Each vial contains 250 mg, 500 mg or 1 g
flucloxacillin.
Flucloxacillin Sodium BP as a powder for reconstitution.
Flucloxacillin Oral solution: Bottles containing powder for the preparation of
solution.
When reconstituted each 5 ml contains 125 mg or 250 mg flucloxacillin, as
Flucloxacillin sodium BP. Flucloxacillin Oral solution contain sodium benzoate
and sucrose.
THERAPEUTIC INDICATIONS
Flucloxacillin is indicated for the treatment of infections due to Gram-positive organisms, including infections caused by b-lactamase-producing staphylococci. Typical indications include:
Skin and soft tissue infections:
Boils, abscesses, carbuncles, furunculosis, cellulitis; infected skin
conditions, e.g. ulcer, eczema and acne; infected wounds, infected burns,
otitis externa, protection for skin grafts, impetigo.
Respiratory tract
infections:
Pneumonia, lung abscess, empyema, sinusitis, pharyngitis, otitis media,
tonsillitis, quinsy.
Other infections caused by Flucloxacillin-sensitive
organisms:
Osteomyelitis, enteritis, endocarditis, urinary tract infection, meningitis,
septicaemia.
Flucloxacillin is also indicated for use as a prophylactic agent during major surgical procedures where appropriate: for example, cardiothoracic and orthopaedic surgery.
Flucloxacillin is a narrow-spectrum antibiotic of the group of isoxazolylpenicillins; it is not inactivated by staphylococcal beta-lactamases.
Flucloxacillin, by its action on the synthesis of the bacterial cell wall, exerts a bactericidal effect on streptococci (including S.pneumoniae, S. pyogenes and S.viridans, but excluding group D streptococci such as S.faecilis), staphylococci (including the b-lactamase-producing strains), Clostridia (including C.tetani and C.welchii) and Neisseria (including N.gonorrhoeae and N.meningitidis). It is not active against methicillin-resistant staphylococci.
POSOLOGY AND METHOD OF ADMINISTRATION
Dosage:
Depends on the age, weight and renal function of the patient, as well as the
severity of the infection.
Dosage information is provided as the total daily dose which is administered in divided doses 3 or 4 times daily.
Parenteral treatment is indicated for severe infections, e.g. osteomyelitis, staphylococcal septicemia and endocarditis.
Adults: Mild-Moderate infections
Oral, intravenous or intramuscular route: Total daily dosage of 1 g to 3 g, administered in 3-4 divided doses.
Severe infections: Up to 8g per day in 4 rapid infusions (20-30 minutes). No single infusion should exceed 2g.
In the case of bacterial endocarditis, a total daily dose of 12 g may be used.
Surgical prophylaxis: 2 g intravenously (bolus or infusion) upon induction of
anaesthesia, to be repeated every 6 hours for 24 hours in cases of vascular and
orthopaedic surgery, and for 48 hours in cases of cardiac or coronary surgery.
Children
Mild-Moderate infections, Oral, intravenous or intramuscular route: 25-50 mg/kg/day administered in 3-4 divided doses. Severe infections: Up to 100 mg/kg/day parenterally. No single bolus injection should exceed 33mg/kg.
Elderly
No dosage adjustment is required, unless there is evidence of renal impairment (see below).
Renal impairment
The excretion of flucloxacillin is slowed in cases of renal failure. If
creatinine clearance drops below 10 ml/min, then the recommended dosage is 1 g
every 8 to 12 hours (in anuric patients, the maximum dosage is 1 g every 12
hours). Neither haemodialysis nor peritoneal dialysis lower the serum levels of
flucloxacillin. Therefore, dialysis need not be accompanied by an additional
dose.
Administration
By the oral route (parenteral therapy is indicated if the oral route is considered impracticable or unsuitable, as in the case of severe diarrhoea or vomiting, and particularly for the urgent treatment of severe infection). It is recommended that at least 10 days treatment be given for any infection caused by beta-haemolytic streptococci.
Oral forms of Flucloxacillin are to be taken 1 hour before meals.
Flucloxacillin Vials for Injection should be reconstituted as follows:
- Intramuscular injection: Dissolve 250 mg, 500 mg or 1 g Flucloxacillin in 1 ml, 2 ml or 4 ml respectively of Water for Injection BP or in a 1% solution of lidocaine. Stability of the solution at room temperature: 30 minutes
- Intravenous injection: Dissolve 250 mg, 500 mg or 1 g Flucloxacillin in 5 ml, 10 ml or 20 ml respectively of Water for Injection BP or in Sodium Chloride Intravenous Injection BP (0.9% w/v). Stability of the solution at room temperature: 24 hours (72 hours at 5 °C).
- Intravenous infusion: Dissolve 250 mg, 500 mg or 1 g Flucloxacillin in 25 ml, 50 ml or 100 ml of a suitable solvent, e.g. Water for Injection; Sodium Chloride Intravenous Injection BP (0.9% w/v): 5% w/v glucose; 0.18% w/v sodium chloride with 4% w/v glucose; Hartmann's solution; sodium lactate M/6. Stability of the solution at room temperature: 24 hours (72 hours at 5°C. Flucloxacillin solutions containing lidocaine should not be used for intravenous administration.
Incompatibilities
Flucloxacillin should not be mixed with blood products, other proteinaceous fluids such as protein hydrolysates or with intravenous lipid emulsions. Loss of activity or physical incompatibility in solution with numerous other drugs has been reported. Therefore, it is advisable not to combine Flucloxacillin with other drugs in solution for parenteral administration.
CONTRAINDICATIONS
- Flucloxacillin is a penicillin and should not be given to patients with a history of hypersensitivity to beta-lactam antibiotics (e.g. penicillins, cephalosporins).
- Flucloxacillin is contra-indicated in patients with a previous history of flucloxacillin-associated jaundice/hepatic dysfunction.
- Flucloxacillin should be used with caution in patients with evidence of hepatic dysfunction. Ocular administration.
SPECIAL WARNINGS AND SPECIAL PRECAUTIONS FOR USE
Before initiating therapy with Flucloxacillin, careful inquiry should be made
concerning previous hypersensitivity reactions to beta-lactams.
Cross-sensitivity between penicillins and
cephalosporins is well documented. Serious and occasionally fatal
hypersensitivity reactions (anaphylaxis) have been reported in patients
receiving beta-lactam antibiotics. Although anaphylaxis is more frequent following parenteral therapy, it has occurred in patients on oral therapy. These reactions are more likely to occur in individuals with history of beta-lactam hypersensitivity. If an allergic reaction occurs, Flucloxacillin should be
discontinued and the therapy. These reactions are more likely to occur in
individuals with a history of beta-lactam anaphylaxis is more frequent
following parenteral therapy, it has occurred in patients on oral emergency
treatment with adrenaline.
Oxygen, intravenous steroids, and airway management, including intubation, may also be required. Hepatitis, predominantly of a cholestatic type has appropriate therapy instituted. Serious anaphylactoid reactions may require immediate been reported and, very rarely, deaths have occurred, almost always in patients with serious prolonged treatment (See Undesirable Effects). Flucloxacillin should be used with caution in patients with evidence of hepatic dysfunction. Special caution is essential in the newborn because of the risk of hyperbilirubinemia.
Studies have shown that, at high dose following parenteral therefore predispose to kernicterus in a jaundiced baby. In addition, special caution is essential in administration, flucloxacillin can displace bilirubin from plasma protein binding sites, and may the newborn because of the potential for high serum levels of flucloxacillin due to a reduced rate of renal excretion. During prolonged treatments (e.g. osteomyelitis, endocarditis), regular monitoring of hepatic and renal functions is recommended. Prolonged use may occasionally result in overgrowth of non-susceptible organisms. Sodium content: The sodium salt of flucloxacillin contains 52.0 mg sodium per gram.
This should be included in the daily allowance of patients on sodium restricted diets. This should be considered for patients with impaired renal function (creatinine clearance of less than 30 ml/min).
Flucloxacillin Oral Solution contain tartrazine, which can cause allergic-type reactions including asthma in susceptible people, especially people with a history of allergy to aspirin.
Interaction with other medicaments.
Bacteriostatic drugs may interfere with the bactericidal action of Flucloxacillin.
PREGNANCY AND LACTATION
Pregnancy: Penicillin is generally considered safe for use in pregnancy. Animal studies
with Flucloxacillin have shown no teratogenic effects. Limited information is
available concerning the results of the use of Flucloxacillin in human
pregnancy. The decision to administer any drug during pregnancy should be taken
with the utmost care. Therefore, Flucloxacillin should only be used in pregnancy
when the potential benefits outweigh the potential risks associated with
treatment. Lactation:
Trace quantities of flucloxacillin are excreted in breast milk. The possibility
of hypersensitivity reactions must be considered in breast feeding infants. Therefore, Flucloxacillin should only be administered to a breast-feeding mother
when the potential benefits outweigh the potential risks associated with the
treatment.
UNDESIRABLE EFFECTS
Hypersensitivity reactions: If any hypersensitivity reaction occurs, the treatment should be discontinued. Rash, urticaria, purpura, fever, eosinophilia; sometimes angioneurotic oedema, rarely anaphylactic shock (exceptional with oral administration). Certain reactions (fever, arthralgia, myalgia) sometimes develop more than 48 hours after the start of the treatment. Erythema multiforme has been reported rarely.
Gastrointestinal reactions: Minor gastrointestinal disturbances may occur during treatment. As with other antibiotics, pseudomembranous colitis has been reported rarely. If this condition develops, Flucloxacillin Minor gastrointestinal disturbances may occur during treatment. As with other antibiotics, treatment should be discontinued and appropriate therapy, e.g. oral vancomycin should be initiated.
Hepatic effects: Hepatitis and cholestatic jaundice have been reported (See Special Warnings and Special Precautions for Use). These may be delayed for up to two months post-treatment. In some cases, the course has been protracted and lasted for several months. Very rarely, deaths have been reported, almost always in patients with serious underlying disease. Changes in liver function test results may occur but are reversible when treatment is discontinued.
Renal effects: Interstitial nephritis may occur but is reversible when treatment is
discontinued.
Neurological effects: In patients suffering from renal failure, neurological
disorders with convulsions are possible with the intravenous injection of high
doses.
Haematological effects: Neutropenia and thrombocytopenia may occur but are
reversible when treatment is discontinued.
OVERDOSE
Gastrointestinal effects such as nausea, vomiting and diarrhoea may be evident
and should be treated symptomatically.
Flucloxacillin is not removed from the circulation by haemodialysis.
PHARMACEUTICAL PRECAUTIONS
Flucloxacillin Capsules: Do not store above 25°C.
Flucloxacillin Vials for Injection: Should be stored in a cool, dry place.
Reconstituted solutions for intravenous or intramuscular injection should
normally be administered within 30 minutes of preparation.
Flucloxacillin Oral solution: Store in a dry place below 25°C. keep the bottle tightly closed and used within 7 days Once reconstituted. After reconstitution store in refrigerator.
FURTHER INFORMATION
Flucloxacillin is stable in acid media and can therefore be administered either by the oral or parenteral route. The peak serum levels of flucloxacillin reached after 1 hour are as follows: approximately 8.8 mg/L (250 mg by oral route), 14.5 mg/L (500 mg by oral route) and 16.5 mg/L (500 mg by intramuscular route). The total quantity absorbed by the oral route represents approximately 79% of the quantity administered. Flucloxacillin diffuses well into most tissues, but only a small proportion enters the cerebrospinal fluid of subjects whose meninges are not inflamed. In normal subjects approximately 10% of the flucloxacillin administered is metabolised to penicilloic acid. The elimination half-life of flucloxacillin is of the order of 53 minutes. Excretion occurs mainly through the kidney. Between 65.5% (oral route) and 76.1% (parenteral route).
A small portion of the dose is excreted in the bile. The excretion of flucloxacillin is slowed in cases of renal failure. The serum protein-binding rate is 95%.
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Pack Insert Leaflet text revised December 2014. Further Information available
on request.
A Product of:
EXETER HEALTH LIMITED
Queensgate House, 48, Queen Street,
Exeter, Devon EX4 3SR, U.K.