Consumer medicine information

Omegapharm Cefepime Powder for injection

Cefepime

BRAND INFORMATION

Brand name

Omegapharm Cefepime Powder for injection

Active ingredient

Cefepime

Schedule

S4

 

Consumer medicine information (CMI) leaflet

Please read this leaflet carefully before you start using Omegapharm Cefepime Powder for injection.

What is in this leaflet:

The medicine which your doctor has prescribed for you is called Omegapharm Cefepime for Injection. The information in this leaflet answers some questions you may have about Omegapharm Cefepime for Injection.

This leaflet does not contain all the information about Omegapharm Cefepime for Injection. Your doctor or pharmacist has been provided with full information, and can answer any questions you may have. Follow your doctor's advice, even if it differs from what is in this leaflet.

You should read this leaflet carefully before Omegapharm Cefepime for Injection is given to you. Keep this leaflet in a safe place, you may need to read it again.

What Omegapharm Cefepime for Injection is used for:

Omegapharm Cefepime for Injection contains cefepime which belongs to a group of antibiotics called cephalosporins. These antibiotics work by killing the bacteria that are causing the infection.

Omegapharm Cefepime for Injection is an injectable antibiotic used for serious infections in adults caused by bacteria in the lungs (pneumonia and bronchitis), in the kidney and bladder (urinary tract infections), in the skin, inside the abdomen (peritonitis and biliary tract infections), in the womb or vagina, or in the blood (septicaemia). It may be given before surgery or if you have a lack of white blood cells with fever.

Omegapharm Cefepime for Injection is also used for serious infections in children over 2 months of age caused by bacteria in the lungs (pneumonia), in the kidney and bladder (urinary tract infections), or in the skin; or in the blood; or if the child has a lack of white blood cells with fever.

There may be other reasons why your doctor has prescribed Omegapharm Cefepime for Injection. Ask your doctor why Omegapharm Cefepime for Injection has been prescribed for you.

Before you are given Omegapharm Cefepime for Injection:

When you must not be given Omegapharm Cefepime for Injection

You should not be given Omegapharm Cefepime for Injection if -

  • you have an allergy to Omegapharm Cefepime for Injection, or to other cephalosporins or to any ingredient listed at the end of this leaflet.
    Some of the symptoms of an allergic reaction may include skin rash, difficulty breathing or fever.
  • you have had a serious reaction to penicillin.

Before you are given Omegapharm Cefepime for Injection:

Before you are given Omegapharm Cefepime for Injection your doctor must know -

  • if you have ever had any type of allergic reaction to penicillin medicines
  • if you have any allergies to other medicines or to any other substances such as foods, preservatives or dyes
  • if you have ever had any other health problems or medical conditions such as -
    - kidney disease
    - severe bowel conditions or bowel disease
    - frequent infections such as fever, severe chills, sore throat or mouth ulcers or lack of white blood cells (neutropenia)
    - a recent bone marrow transplant
    - cancer of the blood
    - low blood pressure
  • if you have ever suffered diarrhoea as a result of taking medicine.

Pregnancy and breast-feeding

Tell your doctor if:

  • you are pregnant or intend to become pregnant
  • breast-feeding or plan to breast-feed

Like most medicines Omegapharm Cefepime for Injection is not recommended for women who are pregnant or breast-feeding. However your doctor will discuss with you the possible risks and benefits of using Omegapharm Cefepime for Injection during pregnancy.

Taking other medicines

Tell your doctor if you are taking any other medicines, including medicines that you buy without a prescription from your pharmacy or health food shop. Some medicines may interfere with Omegapharm Cefepime for Injection, these include -

  • any other antibiotic
  • fluid tablets (diuretics) such as Lasix, Midamor, or Moduretic.

These medicines may be affected by Omegapharm Cefepime for Injection, or may affect how well it works. You may need different amounts of your medicine, or you may need to take different medicines.

Children

Omegapharm Cefepime for Injection may be given to infants (over 2 months old) and children; Omegapharm Cefepime for Injection is not recommended if the infant is less than 2 months old.

How Omegapharm Cefepime for Injection is given:

How much is given

Your doctor will decide what dose you will receive.

The usual adult dose is 1 gram given by injection every 12 hours (2 each day) for 7 to 10 days.

The dose of Omegapharm Cefepime for Injection for children aged 2 months to 12 years old will depend on the weight of the child, the severity of the infection and the medical condition of the child.

How it is given

Omegapharm Cefepime for Injection is given as a slow injection (or drip) directly into a vein or as a deep injection into a large muscle.

The injection will be given to you by a nurse or doctor, you will not be giving the injection to yourself.

Overdose

Usually you will be in hospital when receiving Omegapharm Cefepime for Injection. Your doctor has information on how to recognise and treat an overdose. Ask your doctor or nurse if you have any concerns when you are receiving Omegapharm Cefepime for Injection.

While you are being given Omegapharm Cefepime for Injection:

Things you must do

  • If the symptoms of your infection do not improve within a few days, or if they become worse, you must tell your doctor.
  • If you get severe diarrhoea tell your doctor, pharmacist or nurse immediately even if it occurs several weeks after Omegapharm Cefepime for Injection has been stopped.
    Diarrhoea may mean that you have a serious condition affecting your bowel. You may need urgent medical care. Do not take any diarrhoea medicine without checking with your doctor first.
  • If you get a sore white mouth or tongue while receiving or soon after stopping Omegapharm Cefepime for Injection, tell your doctor. Also tell your doctor if you get vaginal itching or discharge.
    This may mean you have a fungal infection called thrush. Sometimes the use of Omegapharm Cefepime for Injection allows fungi to grow and the symptoms described above to occur. Omegapharm Cefepime for Injection does not work against fungi.
  • If you become pregnant while you are being given Omegapharm Cefepime for Injection tell your doctor.
  • If you are about to start taking any new medicine, tell your doctor and pharmacist that you are receiving Omegapharm Cefepime for Injection.
  • If you have your urine tested for sugar while you are receiving Omegapharm Cefepime for Injection, make sure your doctor knows which test is used. Omegapharm Cefepime for Injection may affect the results of some of these tests.
  • Tell all the doctors, dentists and pharmacists who are treating you that you are taking Omegapharm Cefepime for Injection.

Things to be careful of

Be careful driving or operating machinery until you know how Omegapharm Cefepime for Injection affects you. Omegapharm Cefepime for Injection generally does not cause any problems with your ability to drive a car or operate machinery. However as with other medicines, Omegapharm Cefepime for Injection may cause dizziness, drowsiness or tiredness in some people.

Side effects:

It is important that you tell a nurse, doctor or pharmacist if you experience any problems when you are being treated with Omegapharm Cefepime for Injection.

Omegapharm Cefepime for Injection helps most people with infections, but it may cause some unwanted side effects in a few people. All medicines have side effects, some times they are serious, most of the time they are not. You may need special medical treatment if you get some of the side effects.

Infections:
If there are any germs present which are not sensitive to Omegapharm Cefepime for Injection, they may flourish during Omegapharm Cefepime for Injection therapy and cause other infections such as thrush.

Laboratory Tests:
Omegapharm Cefepime for Injection may cause adverse effects to the blood, liver or kidneys which are detected by laboratory testing. It may be necessary to monitor these effects by having your blood samples analysed regularly. Your doctor will advise if it is necessary for you to have these tests done.

Call for a nurse or doctor immediately if you experience any of the following -

  • chest pain, increased heart beat, feeling faint, breathing difficulty, chills, dizziness, asthma
  • feel confused, suffer hallucinations, twitching muscles or experience a seizure

Tell your doctor if you notice any of the following -

  • oral thrush - white, furry, sore tongue and mouth
  • vaginal thrush - sore and itchy vagina and/or discharge
  • itching or burning while passing urine
  • cough, sore throat, mouth ulcers
  • swelling, pain and inflammation at the site of the injection
  • any change to your bowel habits - diarrhoea or constipation
  • pain in the gut, indigestion or upset stomach
  • skin rash or itchiness, skin redness
  • sweating, feeling unwell, fluid retention, headache, weakness, numbness
  • insomnia, anxiety, nervousness, confusion

After treatment with Omegapharm Cefepime for Injection is finished

Tell your doctor immediately if you notice any of the following side effects, particularly if they occur several weeks after the treatment with Omegapharm Cefepime for Injection has stopped -

  • severe abdominal cramps or stomach cramps
  • watery and severe diarrhoea, which may also be bloody
  • fever with one or both of the above symptoms

These are rare but serious side effects. You may have a serious condition affecting your bowel. Therefore you may need urgent medical attention. Although this side effect is rare, do not take diarrhoea medicine without first checking with your doctor.

The list above is not a complete list of ALL possible side effects. Your doctor can tell you more about the safety of Omegapharm Cefepime for Injection. Also, as with any medicine, there are some side effects which are not yet known. Ask your doctor if you have any questions.

Storage

Omegapharm Cefepime for Injection will be stored in the pharmacy or the Ward. The powder for injection is usually kept in a cool dry place where the temperature stays below 25 degrees Celsius.

Protect from light.

Product description:

What Omegapharm Cefepime for Injection looks like

Omegapharm Cefepime for Injection is a white to pale yellow powder.

Ingredients

Each vial contains the active ingredient cefepime 1 g or 2 g (as cefepime hydrochloride).

The vials also contain the inactive ingredient arginine.

The contents of each vial are dissolved in sterile water, 5% glucose or saline for injection before the injection is given.

BRAND INFORMATION

Brand name

Omegapharm Cefepime Powder for injection

Active ingredient

Cefepime

Schedule

S4

 

Name of the medicine

Cefepime as cefepime hydrochloride.

Excipients.

Arginine.

Description

Cefepime hydrochloride is a semi-synthetic broad-spectrum cephalosporin antibiotic for parenteral administration. The chemical name is Pyrrolidinium, 1-[[7-[[(2-amino-4-thiazolyl)(methoxyimino)acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-1-methyl-,chloride, monohydrochloride, monohydrate, [6R-[6α,7β(Z)]].
Cefepime hydrochloride is a white to pale yellow powder, which is highly soluble in water.
Molecular Formula: C19H25ClN6O5S2.HCl.H2O. Molecular Weight: 571.50. CAS Registry Number: 123171-59-5.
Omegapharm Cefepime for Injection contains Arginine as an excipient.

Pharmacology

Pharmacokinetics (in adults).

Average plasma concentrations of cefepime observed in normal adult males at various times following single 30-minute infusions of 500 mg, 1 g and 2 g are summarised in Table 1. Following intramuscular administration, cefepime is completely absorbed. The average plasma concentrations of cefepime at various times following a single IM injection are summarised in Table 1.
Concentrations of cefepime achieved in specific tissues and body fluids are listed in Table 2.
The average elimination half-life of cefepime is approximately 2 hours, and the disposition of cefepime does not vary with respect to dose over the range of 250 mg to 2 g. There is no evidence of accumulation in healthy subjects receiving doses up to 2 g intravenously every 8 hours for a period of 9 days. Total body clearance averages 120 mL/min. The average renal clearance of cefepime is 110 mL/min, demonstrating that cefepime is eliminated almost exclusively by renal mechanisms, primarily glomerular filtration.
Cefepime is metabolised to N-methylpyrrolidine which is rapidly converted to the N-oxide. Urinary recovery of unchanged cefepime represents approximately 85% of dose, resulting in high concentrations of cefepime in the urine. The serum protein binding of cefepime averages 16.4% and is independent of its concentration in the serum.

Pharmacokinetics of elderly.

Healthy volunteers 65 years old or older, who received a single 1 g IV dose of cefepime had higher AUC and lower renal clearance values compared to younger healthy adults; Dosage adjustments in the elderly are recommended if renal function is compromised (see Precautions and Dosage and Administration).

Pharmacokinetics of patients with impaired hepatic function.

The pharmacokinetics of cefepime are unaltered in patients with impaired hepatic function who received a single 1 g dose. It is not necessary to alter the dosage of cefepime in these patient populations.

Pharmacokinetics of patients with renal insufficiency.

Studies in patients with various degrees of renal insufficiency have demonstrated a prolongation in elimination half-life. There is a linear relationship between total body clearance and creatinine clearance in patients with abnormal renal function, which serves as the basis for dosage adjustment recommendations in this group of patients (see Dosage and Administration). The average half-life in severely impaired patients requiring dialysis therapy is 13 hours for haemodialysis or 19 hours for continuous ambulatory peritoneal dialysis.

Pharmacokinetics of patients with cystic fibrosis.

The pharmacokinetics of cefepime do not change to a clinically significant degree in cystic fibrosis patients.

Pharmacokinetics - paediatrics.

Single- and multiple-dose pharmacokinetics of cefepime were evaluated in patients ranging in age from 2 months to 16 years who received 50 mg/kg doses administered by IV infusion; multiple doses were administered every 8 or 12 hours for at least 48 hours. Mean plasma concentrations of cefepime after the first dose were similar to those at steady state, with only slight accumulation seen upon repeated dosing.
Other pharmacokinetic parameters in infants and children were not different between first-dose and steady-state determinations, regardless of dosing schedule (q12h or q8h). There were also no differences in pharmacokinetics among the various patient ages or between male and female patients.
Following a single IV dose, total body clearance averaged 3.3 mL/min/kg and average volume of distribution was 0.3 L/kg. The overall mean elimination half-life was 1.7 hours. The urinary recovery of unchanged cefepime was 60.4% of the administered dose, and renal clearance was the primary pathway of elimination, averaging 2.0 mL/min/kg.
No accumulation was seen when cefepime was given at 50 mg/kg q12h (n=13), while Cmax, AUC, and t2, were increased approximately 15% at steady state after 50 mg/kg q8h. Clinically relevant changes in the pharmacokinetics of cefepime have not been observed in cystic fibrosis patients.

Microbiology.

Cefepime is a bactericidal agent that acts by inhibition of bacterial cell wall synthesis. Cefepime has a broad spectrum of in vitro activity that encompasses a wide range of gram-positive and gram-negative bacteria. Cefepime has a low affinity for chromosomally encoded beta-lactamases.
Cefepime is highly resistant to hydrolysis by most beta-lactamases and exhibits rapid penetration into gram-negative bacterial cells. Within bacterial cells, the molecular targets of cefepime are the penicillin binding proteins (PBP).
Cefepime has been shown to be active against most strains of the following microorganisms, both in vitro and in clinical infections as described in Indications.

Aerobic gram negative microorganisms.

Enterobacter, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa.

Aerobic gram positive microorganisms.

Staphylococcus aureus (methicillin susceptible strains only), Streptococcus pneumoniae, Streptococcus pyogenes (Lancefield's group A Streptococci).

Susceptibility.

With % acquired resistance* for susceptible organisms as follows.

Susceptible.

Enterobacter aerogenes*: 0%; Enterobacter cloacae*: 0%; Escherichia coli*: 0%; Haemophilus influenzae: 0%; Klebsiella pneumoniae*: 0%; Proteus mirabilis*: 0%; Pseudomonas aeruginosa*: 3%; Staphylococcus aureus (methicillin susceptible): 0.2%; Streptococcus pneumoniae*: 3%; Streptococcus pyogenes*: 0%.

Intermediate.

(No organisms listed.)

Insusceptible.

Staphylococcus aureus (methicillin resistant).
*Clinical efficacy has been demonstrated for susceptible isolates in approved clinical indications.

Note.

1 to 20% of Enterobacteriacae have an acquired resistance mechanism (depressed synthesis of ampC beta-lactamase or production of an ESBL) which decreases susceptibility to cefepime resulting in MICs in the 1 to 16 microgram/mL range.
The following in vitro data are available, but the clinical significance is unknown. Cefepime has been shown to have in vitro activity against most strains of the following microorganisms; however, the safety and effectiveness of cefepime in treating clinical infections due to these microorganisms have not been established in adequate and well controlled trials.

Aerobic gram positive microorganisms.

Staphylococcus epidermidis (methicillin susceptible strains only), Staphylococcus saprophyticus, Streptococcus agalactiae (Lancefield's group B Streptococci), Viridans group Streptococci.

Note.

Most strains of enterococci, e.g. Enterococcus faecalis, and methicillin resistant staphylococci are resistant to cefepime.

Aerobic gram negative microorganisms.

Acinetobacter calcoaceticus subsp. lwoffi, Citrobacter diversus, Citrobacter freundii, Enterobacter agglomerans, Haemophilus influenzae (including beta-lactamase producing strains), Hafnia alvei, Klebsiella oxytoca, Moraxella catarrhalis (including beta-lactamase producing strains), Morganella morganii, Proteus vulgaris, Providencia rettgeri, Providencia stuartii, Serratia marcescens.

Note.

Cefepime is inactive against many strains of Stenotrophomonas (formerly Xanthomonas maltophilia and Pseudomonas maltophilia).

Anaerobic microorganisms. Note.

Cefepime is inactive against most strains of Clostridium difficile.

Susceptibility tests.

Dilution or diffusion techniques - either quantitative (MIC) or breakpoint, should be used following a regularly updated, recognised and standardised method (e.g. NCCLS). Standardised susceptibility test procedures require the use of laboratory control microorganisms to control the technical aspects of the laboratory procedures.
A report of ‘Susceptible’ indicates that the pathogen is likely to be inhibited if the antimicrobial compound in the blood reaches the concentration usually achievable.
A report of ‘Intermediate’ indicates the result should be considered equivocal, and if the microorganism is not fully susceptible to alternative clinically feasible drugs, the test should be repeated. This category implies possible clinical applicability in body sites where the drug is physiologically concentrated or in situations where high dosage of drug can be used. This category also provides a buffer zone, which prevents small uncontrolled technical factors from causing major discrepancies in interpretation.
A report of ‘Resistant’ indicates that the pathogen is not likely to be inhibited if the antimicrobial compound in the blood reaches the concentrations usually achievable; other therapy should be selected.

Note.

The prevalence of resistance may vary geographically for selected species and local information on resistance is desirable, particularly when treating severe infections.

Clinical Trials

Cefepime has been studied in a clinical trial of surgical prophylaxis. A multicentre, randomised, open label study enrolled a total of 615 adult subjects who were to be treated by elective colorectal surgery. A single dose of 2 g of either cefepime or ceftriaxone was administered intravenously to subjects followed by a single dose of metronidazole 500 mg intravenously, starting approximately one hour prior to surgery. The primary study endpoint was the absence of infection at the operative site and of intra-abdominal infection.
Clinical outcomes are shown in Table 3.

Indications

Adults.

Cefepime is indicated in the treatment of the infections listed below when caused by susceptible bacteria.
Lower respiratory tract infections, including pneumonia and bronchitis;
Urinary tract infections, both complicated, including pyelonephritis, and uncomplicated infections;
Skin and skin structure infections;
Intra-abdominal infections, including peritonitis and biliary tract infections;
Gynaecological infections;
Septicaemia;
Empirical treatment in febrile neutropenic patients (see Precautions).
Cefepime is also indicated for surgical prophylaxis in patients undergoing intra-abdominal surgery. In this indication it is essential that metronidazole also be administered.

Paediatrics.

Cefepime is indicated in paediatric patients over 2 months of age for the treatment of the infections listed below when caused by susceptible bacteria.
Pneumonia;
Urinary tract infections, both complicated, including pyelonephritis, and uncomplicated infections;
Skin and skin structure infections;
Septicaemia;
Empirical treatment in febrile neutropenic patients (see Precautions).
Culture and susceptibility studies should be performed when appropriate to determine susceptibility of the causative organism(s) to cefepime. Empirical therapy with cefepime may be instituted before results of susceptibility studies are known; however, once these results become available, the antibiotic treatment should be adjusted accordingly.
Because of its broad spectrum of bactericidal activity against Gram positive and Gram negative bacteria, cefepime can be used appropriately as monotherapy prior to identification of the causative organisms(s). In the treatment of febrile neutropenia, consideration should be given to the need for other antibiotics in combination with cefepime. In patients who are at risk of mixed aerobic/anaerobic infection, including infections in which Bacterioides fragilis may be present, concurrent initial therapy with an anti-anaerobic agent is recommended before the causative organism(s) is known.

Contraindications

Cefepime is contraindicated in patients who have shown immediate hypersensitivity reactions to any component of the formulation, (including l-arginine), the cephalosporin class of antibiotics, penicillins or other beta-lactam antibiotics.

Precautions

Impaired renal function.

In patients with impaired renal function, such as reduction of urinary output because of renal insufficiency (creatinine clearance less than or equal to 50 mL/minute) or other conditions that may compromise renal function, the dosage of cefepime should be adjusted to compensate for the slower rate of renal elimination. Because high and prolonged serum antibiotic concentrations can occur from usual doses in patients with renal insufficiency or other conditions that may compromise renal function, the maintenance dosage should be reduced when cefepime is administered to such patients. Continued dosage should be determined by degree of renal impairment, severity of infection and susceptibility of the causative organisms (see Dosage and Administration and Pharmacology). During post-marketing surveillance, the following serious adverse events have been reported: reversible encephalopathy (disturbance of consciousness including confusion, hallucinations, stupor and coma), myoclonus, seizures (including nonconclusive status epilepticus) and/or renal failure (see Adverse Effects). Most cases occurred in patients with renal impairment who received doses of cefepime that exceeded recommendations. In general, symptoms of neurotoxicity resolved after discontinuation of cefepime and/or after haemodialysis however, some cases included a fatal outcome.
Renal function should be monitored carefully if drugs with nephrotoxic potential, such as aminoglycosides and potent diuretics, are administered with cefepime.

Hypersensitivity to cefepime or cephalosporins, penicillins or other beta-lactam antibiotics.

Before therapy with cefepime is instituted, careful inquiry should be made to determine whether the patient has had previous immediate hypersensitivity reactions to cefepime, cephalosporins, penicillins or other beta-lactam antibiotics. Antibiotics should be administered with caution to any patient who has demonstrated some form of allergy, particularly to drugs. If an allergic reaction to cefepime occurs, discontinue the drug and treat the patient appropriately. Serious immediate hypersensitivity reactions may require adrenaline and other supportive therapy.

Clostridium difficile associated colitis.

Pseudomembranous colitis has been reported with virtually all broad spectrum antibiotics including cefepime; therefore, it is important to consider this diagnosis in patients who develop diarrhoea in association with the use of antibiotics. Treatment with broad spectrum antibiotics alters the normal flora of the colon and may permit overgrowth of Clostridia. Studies indicate that a toxin produced by Clostridium difficile is a primary cause of antibiotic associated colitis. Mild cases of pseudomembranous colitis may respond to drug discontinuation alone. In moderate to severe cases, management should include fluid, electrolyte and protein supplementation. When colitis does not improve after drug discontinuation or when it is severe, it should be treated with an antibiotic clinically effective against Cl. difficile. Other causes of colitis should also be considered.
In patients (adult and paediatric) at high risk for severe infection (including patients with a history of recent bone marrow transplantation, with hypotension at presentation, with an underlying haematological malignancy, or with severe or prolonged neutropenia), antimicrobial monotherapy may not be appropriate. Insufficient data exist to support the efficacy of cefepime monotherapy in such patients.
As with other antibiotics, prolonged use of cefepime may result in overgrowth of non-susceptible organisms. Should superinfection occur during therapy, appropriate measures should be taken.
Cefepime should be prescribed with caution in individuals with a history of gastrointestinal disease, particularly colitis. If neutropenia occurs as a result of prolonged therapy, cefepime should be discontinued and alternative antibiotic therapy used.

Carcinogenesis, mutagenesis, impairment of fertility.

Although no long-term studies in animals have been performed to evaluate carcinogenic potential, a battery of in vitro and in vivo tests for genotoxicity have been conducted. The overall conclusion of this testing is that cefepime is not genotoxic. Standard tests to assess fertility in rats show no impairment of fertility at exposure levels nearly twofold higher than the calculated maximal daily human exposure.

Use in pregnancy.

(Category B1)
Reproduction studies performed in mice and rats showed no evidence of impaired fertility or harm to the foetus at dose levels equivalent to (mouse) or slightly greater than (rat) the maximum human daily dose when the daily doses are compared to those in humans on a mg/m2 basis. There are, however, no adequate and well controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.

Use in lactation.

Cefepime is excreted in human breast milk in very low concentrations. Although less than 0.01% of a 1 g intravenous dose is excreted in milk, caution should be used when cefepime is administered to a breastfeeding woman.

Use in labour and delivery.

Cefepime has not been studied for use during labour and delivery. Treatment should only be given if clearly indicated.

Use in children.

Experience with the use of cefepime in paediatric patients aged less than 2 months is limited. Safety and effectiveness in paediatric patients below the age of 2 months have not been established. Therefore the administration of cefepime to patients less than 2 months of age is not recommended.

Use in the elderly.

Of the more than 6,400 adults treated with cefepime in clinical studies, 35% were 65 years or older while 16% were 75 years or older. In clinical studies, when geriatric patients received the usual recommended adult dose, clinical efficacy and safety were comparable to clinical efficacy and safety in non-geriatric adult patients unless the patients had renal insufficiency. There was a modest prolongation in elimination half-life and lower renal clearance values compared to those seen in younger persons. Dosage adjustments are recommended if renal function is compromised (see Dosage and Administration).
Cefepime is known to be substantially excreted by the kidney and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection and renal function should be monitored (see Precautions, Adverse Effects and Pharmacology). Serious adverse events, including encephalopathy (disturbance of consciousness including confusion, hallucinations, stupor and coma), myoclonus, seizures (including nonconclusive status epilepticus), and/or renal failure have occurred in geriatric patients with renal insufficiency given the usual dose of cefepime (see Precautions and Adverse Effects).

Effect on ability to drive or operate machinery.

The effect of cefepime on driving and operating machinery has not been studied.

Interactions

Renal function should be monitored carefully if drugs with nephrotoxic potential, such as aminoglycosides and potent diuretics, are administered with cefepime. Nephrotoxicity has been reported following concomitant administration of other cephalosporins with aminoglycoside antibiotics or potent diuretics such as frusemide.

Adverse Effects

Cefepime is generally well tolerated. In clinical trials (n = 5,598) the most common adverse events were gastrointestinal symptoms and hypersensitivity reactions. Adverse events considered to be of definite, probable or possible relationship to cefepime are listed below.
Events that occurred at an incidence of > 0.1 to 1% (except where noted) were as follows.

Hypersensitivity.

Rash (1.8%), pruritus, urticaria.

Gastrointestinal.

Nausea, vomiting, oral moniliasis, diarrhoea (1.2%), colitis (including pseudomembranous colitis).

Central nervous system.

Headache.

Other.

Fever, vaginitis, erythema.
Events that occurred at an incidence of 0.05 to 0.1% were: abdominal pain, constipation, vasodilatation, dyspnoea, dizziness, paraesthesia, genital pruritus, taste perversion, chills and unspecified moniliasis.
Events that occurred at an incidence of < 0.05% included anaphylaxis and seizures.
Local reactions at the site of intravenous infusions occurred in 5.2% of patients; these included phlebitis (2.9%) and inflammation (0.1%). Intramuscular administration of cefepime was very well tolerated with 2.6% of patients experiencing pain or inflammation at the injection site.
Laboratory test abnormalities that developed during clinical trials in patients with normal baseline values were transient. Those that occurred at a frequency between 1 and 2% (unless noted) were: elevations in alanine aminotransferase (3.6%), aspartate aminotransferase (2.5%), alkaline phosphatase, total bilirubin, anaemia, eosinophilia, prolonged prothrombin time, partial prothrombin time (2.8%), and positive Coombs' test without haemolysis (18.7%). Transient elevations of serum urea, and/or serum creatinine and transient thrombocytopenia were observed in 0.5 to 1% of patients. Transient leucopenia and neutropenia were also seen (< 0.5%).

Post-marketing experience.

During post-marketing experience, encephalopathy (disturbance of consciousness including confusion, hallucinations, stupor and coma), seizures, myoclonus and/or renal failure have been reported. Most cases occurred in patients with renal impairment who received doses of cefepime that exceeded recommendations (see also Precautions).
Anaphylaxis including anaphylactic shock, transient leucopenia, neutropenia, agranulocytosis and thrombocytopenia has been reported rarely.
Because of the uncontrolled nature of these spontaneous reports, a causal relationship to cefepime has not been determined.
The following adverse reactions and altered laboratory tests have been reported for cephalosporin class antibiotics: urticaria, Stevens-Johnson syndrome, erythema multiforme, toxic epidermal necrolysis, renal dysfunction, toxic nephropathy, aplastic anaemia, haemolytic anaemia, haemorrhage, hepatic dysfunction including cholestasis, and false positive tests for urinary glucose.

Paediatrics.

The safety profile of cefepime in infants and children is similar to that seen in adults. The most frequently reported adverse event considered related to cefepime in clinical trials was rash.

Dosage and Administration

Product is for single use in one patient only. Discard any residue.

Adults.

The usual adult dosage and route of administration of cefepime is 1 g administered intravenously or intramuscularly every 12 hours. However, the dosage and route vary according to the susceptibility of the causative organisms, the severity of the infection and the condition and renal function of the patient. Guidelines for dosage of cefepime are provided in Table 4. The usual duration of therapy is seven to ten days, however more severe infections may require longer treatment.

Surgical prophylaxis.

The dose recommendation for prophylaxis to prevent infection in adults undergoing intraabdominal surgery is as follows.
A single intravenous dose of cefepime 2 g (as a 30 minute infusion, see below) starting 60 minutes before initial surgical incision. A single intravenous dose of metronidazole 500 mg should be administered immediately following completion of the cefepime infusion. The metronidazole dose should be prepared and administered in accordance with official product labelling. Due to incompatibility, cefepime and metronidazole should not be mixed together in the same container (see Compatibility and stability, below); flushing of the intravenous line with a compatible fluid before infusion of the metronidazole is recommended.
If the surgical procedure lasts longer than 12 hours from the initial prophylactic dose, a second dose of cefepime followed by metronidazole should be administered 12 hours following the initial prophylactic dose.

Paediatrics (age 2 months up to 12 years with normal renal function).

Usual recommended dosages.

Pneumonia, urinary tract infections, and skin and skin structure infections.

Patients > 2 months of age with bodyweight less than or equal to 40 kg: 50 mg/kg q12h. For more severe infections, a dosage schedule of q8h can be used.

Empirical treatment of febrile neutropenia.

Patients > 2 months of age with bodyweight less than or equal to 40 kg: 50 mg/kg q8h. The usual duration of therapy is seven to ten days; however, more severe infections may require longer treatment.
For paediatric patients with bodyweights > 40 kg, adult dosing recommendations apply (see Table 4). For patients older than 12 years who are less than or equal to 40 kg, the dosage recommendations for younger patients less than or equal to 40 kg should be used. Dosage in paediatric patients should not exceed the maximum recommended dosage in adults (2 g q8h).
Experience with intramuscular administration in paediatric patients is limited and this route is not recommended.

Impaired hepatic function.

No adjustment is necessary for patients with impaired hepatic function.

Impaired renal function.

In patients with impaired renal function, the dose of cefepime should be adjusted to compensate for the slower renal elimination. The recommended initial dose of cefepime in patients with mild to moderate renal impairment should be the same as in patients with normal renal function. The recommended doses of cefepime in patients with renal insufficiency are shown in Table 5.
When only serum creatinine is available, the following formula (Cockcroft and Gault equation) may be used to estimate creatinine clearance. The serum creatinine should represent a steady state of renal function.

Dialysis patients.

In patients undergoing haemodialysis, approximately 68% of the total amount of cefepime present in the body at the start of dialysis will be removed during a three hour dialysis period. In patients undergoing continuous ambulatory peritoneal dialysis, cefepime may be administered at normally recommended doses, i.e. 500 mg, 1 g or 2 g, depending on infection severity, at a dosage interval of every 48 hours.

Children with impaired renal function.

Since urinary excretion is the primary route of elimination of cefepime in paediatric patients (see Pharmacology), an adjustment of the dosage of cefepime should also be considered in patients < 12 years of age with renal impairment.
A dose of 50 mg/kg in patients aged 2 months up to 12 years, and a dose of 30 mg/kg in patients aged 1 month up to 2 months, are comparable to a dose of 2 g in an adult. As recommended in Table 5, the same increase in interval between doses and/or reduction in dose should be used.

Administration.

Cefepime may be given intravenously or by deep intramuscular injection into a large muscle mass (e.g. the upper outer quadrant of the gluteus maximus). The dosage and route vary according to the susceptibility of the causative organisms, the severity of the infection, renal function and overall condition of the patient.
When using cefepime for surgical prophylaxis it is essential that metronidazole also be administered.

Intravenous administration.

The intravenous route of administration is preferable for patients with severe or life threatening infections, particularly if the possibility of shock is present.
For direct intravenous administration, reconstitute cefepime with 5 or 10 mL of sterile glucose injection 5% or sodium chloride 0.9%, as directed in Table 6. Slowly inject directly into the vein over a period of three to five minutes or inject into the tubing of an administration set while the patient is receiving a compatible intravenous fluid (see Compatibility and stability).
For intravenous infusion, reconstitute the 1 g or 2 g vial, as noted above for direct intravenous administration, and add an appropriate quantity of the resulting solution to an intravenous container with one of the compatible intravenous fluids (see Compatibility and stability).

Intramuscular administration.

Cefepime should be reconstituted with one of the following diluents: sterile water for injections, sodium chloride 0.9% or glucose injection 5% (see Table 6). Although cefepime can be constituted with lignocaine hydrochloride 0.5 or 1%, it is usually not required because cefepime causes little or no pain upon intramuscular administration.
Experience with intramuscular administration in paediatric patients is limited and this route is not recommended.

Compatibility and stability.

Intravenous.

Cefepime in 0.9% Sodium Chloride or 5% Glucose Injection is compatible when admixed with heparin (10 or 50 units/mL), potassium chloride (10 or 40 mEq/L) and theophylline (0.8 mg/mL in 5% Glucose Injection). Cefepime at a concentration of 40 mg/mL in 0.9% Sodium Chloride or 5% Glucose Injection was found to be compatible with amikacin 6 mg/mL.
Cefepime is compatible at concentrations between 1 and 40 mg/mL with the following intravenous infusion fluids: sodium chloride 0.9%, glucose injection 5%, M/6 sodium lactate injection, glucose 5% and sodium chloride 0.9% injection, lactated Ringer's and glucose 5% injection.

Intramuscular.

Cefepime should be reconstituted with the following diluents: sterile water for injections, sodium chloride 0.9%, glucose injection 5% or lignocaine hydrochloride 0.5 or 1%.

For both routes of administration.

To reduce microbiological hazard, cefepime should be reconstituted immediately before use and used as soon as practicable after reconstitution, any residue being discarded. If there is any delay in use of the reconstituted cefepime it should be stored at 2 to 8°C for a maximum of 24 hours.
Solutions of cefepime, like those of most beta-lactam antibiotics, should not be added to solutions of gentamicin, metronidazole, vancomycin, tobramycin sulfate or netilmicin sulfate because of physical or chemical incompatibility. However, if concurrent therapy with cefepime and gentamicin is indicated, each of these antibiotics can be administered separately to the same patient.

Note.

Parenteral drugs should be inspected visually for particulate matter before administration and not used if particulate matter is present.
As with other cephalosporins, the colour of reconstituted cefepime may darken on storage, however product potency is not adversely affected.
Reconstituted solutions should be protected from light.

Overdosage

Treatment.

In case of severe overdosage, especially in patients with compromised renal function, dialysis will aid in the removal of cefepime from the body; peritoneal dialysis is of no value. Accidental overdosing has occurred when large doses were given to patients with impaired renal function (see Dosage and Administration, Precautions and Adverse Effects). Symptoms of overdosage include encephalopathy (disturbance of consciousness including confusion, hallucinations, stupor and coma), myoclonus, seizures and neuromuscular excitability.
Treatment of overdosage should be symptomatic and consist of general supportive measures.
Contact the Poisons Information Centre on 131 126 for advice on management of overdose.

Presentation

Omegapharm Cefepime for Injection 1 g (AUST R 156642).

White to pale yellow powder filled in 20 mL moulded vials, stoppered with grey colour bromo butyl rubber stoppers and sealed with aluminium seals with light orange colour PP disc. Omegapharm Cefepime for Injection 1 g is presented in single dose vial and is intended for IV or IM administration.

Omegapharm Cefepime for Injection 2 g (AUST R 156641).

White to pale yellow powder filled in 50 mL moulded vials, stoppered with grey colour bromo butyl rubber stoppers and sealed with aluminium seals with violet colour PP disc. Omegapharm Cefepime for Injection 2 g is presented in single dose vial and is intended for IV administration.

Storage

Dry powder.

Store below 25°C.

Reconstituted solution.

Store 2 to 8°C for a maximum of 24 hours.
Protect from light.

Shelf-life.

Unopened packaging: 24 months.

Poison Schedule

S4.