20-01-2021
Page 1 of 13
SUMMARY OF PRODUCT
CHARACTERISTICS
1.
NAME OF THE MEDICINAL PRODUCT
Cefazol 1g
powder for solution for
injection
2.
QUALITATIVE AND QUANTITATIVE COMPOSITION
Cefazol 1g - powder for solution for
injection
Each vial contains 1.048 g cefazolin as sodium salt (equivalent to 1 g
cefazolin
The sodium content of each vial is 2.2 mmol. (48 mg per 1 g cefazolin).
For a full list of excipients see section
6.1.
3.
PHARMACEUTICAL
FORM
Powder for solution for injection
4.
CLINICAL PARTICULARS
4.1
Therapeutic indications
Treatment of serious infections caused by susceptible organisms and also perioperatively for
prophylaxis.
Treatment Respiratory tract: Respiratory tract infections due to streptococcus pneumoniae
(formerly diplococcus pneumoniae) klebsiella species haemophilus influenzae
staphylococcus aureus (penicillin sensitive and penicillin-resistant) and group A B - hemolytic
streptococci.
Cefazol is effective in the eradication of streptococci from the nasopharynx.
However data establishing the efficacy of cefazol in the subsequent prevention of rheumatic
fever are not available at present.
Urinary tract: Infections due to escherichia coli klebsiella species proteus mirabilis and some
strains of Enterobacter and enterococci.
Skin and skin structure: -hemolytic beta Infections due to Staphylococcus aureus (penicillin-
sensitive and penicillin resistant) group A streptococci and other strains of streptococci.
Biliary tract: Infections due to Escherichia coli various strains of streptococci proteus mirabilis
klebsiella species and staphylococcus aureus.
Bone and joint : Infections due to staphylococcus aureus.
Genital infections (i.e. prostatitis epididymitis) due to escherichia coli proteus mirabilis
klebsiella species and some strains of enterococci.
Septicemia due to streptococcus pneumoniae (formerly diplococcus pneumonia)
staphylococcus aureus (penicillin-sensitive and penicillin-resistant) proteus mirabilis
escherichia coli and klebsiella species.
Endocarditis caused by staphylococcus aureus (penicillin-sensitive and penicillin-resistant)
and group A beta-hemolytic streptococci.
Appropriate culture and susceptibility studies should be performed to determine the
susceptibility of the causative organism to cefazol.
Perioperative prophylaxis: The prophylactic administration of cefazol perioperatively
(preoperatively intraoperatively and postoperatively) may reduce the incidence of certain
postoperative infections in patients undergoing surgical procedures (e.g. hysterectomy
gastrointestinal surgery and transurethral prostatectomy) that are classified as contaminated
or potentially contaminated. The perioperative use of cefazol may also be effective in surgical
patients in whom infection at the operative site would present a serious risk (e.g. open-heart
surgery and prosthetic arthroplasty) .
Page 2 of 13
4.2
Posology and method of
administration
Posology
The dosage depends on pathogen sensitivity and the severity of the disease.
Adults
The recommended dosage for adults is shown in the table
below:
Type of
infection
Dose
Dosing
interval
Total daily
dose
Mild infections (caused by
Gram-positive
pathogens)
500 mg
every 8 hours
every 12 hours
1.5 g
Uncomplicated urinary tract
infections
every 12 hours
Moderately severe to severe
infections (caused by Gram-
negative pathogens)
every 6 - 8 hours
3g-4g
Life-threatening infections
1g - 1.5 g
every 6 hours
4g-6g
In individual cases, dosages of up to 12 g have been given.
In adult patients with renal dysfunction
, the following dosage schedule should be observed:
Creatinine
clearance
(ml/min x 1.73
m
2
)
Serum
creatinine
(mg/100
ml
)
Daily
dose
Dosing interval
>
<1.5
normal
dose
unchanged
35-54
1.6-3.0
normal
dose
12-hour interval
11-34
3.1-4.5
half the normal
dose
12-hour interval
<
>
quarter of the
normal
dose
24-hour interval
patients
undergoing
haemodialysis,
dosage
depends
dialysis
conditions.
In perioperative use to prevent infection, the dose depends on the type and duration of
the surgical procedure. The following dosages are recommended:
30 minutes to one hour before surgery, a starting dose of 1 g to 2 g is administered IV or IM.
For surgery of longer duration (2 hours or more), a further 500 mg to 1 g is administered
IV or IM during the operation. The dose level and time of administration depend on the
nature and duration of the surgical procedure.
Postoperatively,
500 mg to 1 g are given IV or IM over 24 hours at intervals of 6 to 8
hours.
possible infections
might
particularly dangerous for the
patient
(e.g.
following
heart surgery or major orthopaedic procedures such as joint replacement), it is advisable
to continue postoperative administration of cefazolin for 24 to 48 hours after surgery.
Elderly
patients
No dose adjustment is necessary for elderly patients with normal renal function.
Children and
adolescents
A total daily dose of 25 - 50 mg/kg BW, divided in 3 - 4 single
doses,
effective
for most
mild
moderately
severe
infections.
For severe
infections,
the total dose can be
increased
to the
maximum recommended
dose
of 100 mg/kg
Page 3 of 13
Dosage
instructions for infants. toddlers and children (guideline
values)
Body
weight
25 mg/kg daily in 3
doses
25 mg/kg daily in 4
doses
Dosing interval
approx. 8
hours
Volume to
withdrawn
concentration
mg/ml
Dosing interval
approx.
hours
Volume
withdrawn
concentration
mg/ml
0.35
0.25
0.45
13.5
0.7ml
18.0
0.9ml
22.5
Body
weight
50 mg/kg daily in 3
doses
50 mg/kg daily in 4
doses
Dosing interval
approx.
hours
Volume
withdrawn
concentration of
mg/ml
Dosing interval
approx.
hours
Volume to
withdrawn
concentration of
mg/ml
0.35
0.25
0.7ml
13.5
0.75
18.0
300mg
1.35
22.5
285 mg
1.25
Full-term newborn infants: Safety of use in full-term
newborn
infants has not
been
established
(see section
Children with renal
dysfunction
Creatinine clearance
(ml/min
x 1.73 m
Cefazolin
dose
mg/kg
Dosing
interval
>
7 {up to 500
mg/dose)
25-50
10-25
24-36
<
48-72
Children undergoing haemodialysis
are given 7 mg/kg BW at the start of the
therapy.
serum
cefazolin
level is
reduced
by 35% to 65% during
dialysis,
a dose of 3
to 4
mg cefazolin/kg
BW is
administered
subsequent dialysis-free interval
(dialysis
interval =72
hours)
Duration of
treatment
The duration of
treatment depends
on the course of the
disease.
As is
customary with
antibiotic therapy, cefazolin
should be given for a further 2
3 days after the patient
become
afebrile or proof is
obtained
that the
pathogens
have been
eliminated.
Method of administration
The prepared solution is administered deep into the muscle or intravenously (see also
section 6.6
Intramuscular
use
For intramuscular use,
the medicine should be dissolved in 0.5% lidocaine solution.
Intramuscular doses (maximum 1 g) should be injected into a large muscle mass.
administration should be used only for uncomplicated infections
Reconstitution takes place with
0.5% lidocaine solution according to the following dilution
table.
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Volume of solvent
Vial size
500 mg
Intravenous
use
For preparation of solutions for IV injection or infusion, the powder is dissolved in water for
injections or 0.9% sodium chloride solution.
Cefazol 1g
powder for
solution
for injection:
For each gram of powder, at least 4 ml of the solvent must be used.
Preparation of solution for IV infusion: The reconstituted solution (prepared as described above)
has to be transferred into a suitable infusion bag or bottle with 50 - 100 ml 0.9% sodium chloride
solution.
Intermittent intravenous
infusion
Higher daily doses
4- 6 g in 2- 3 single doses) are administered by IV infusion (over 20 to
30 minutes).
Direct intravenous
injection
Up to a dose of 1g, cefazol can be administered by slow IV injection (over 3
5 minutes)
directly into a vein or through the cannula.
Solutions of cefazol in lidocaine must not be given intravenously.
4.3
Contraindications
This medicinal product must not be used in cases of known hypersensitivity to cefazolin or other
cephalosporins
patients
have
previously
shown
immediate
and/or
severe
hypersensitivity reactions to penicillin or to any other beta-lactam antibiotic.
For use in children of less than 30 months of age, cefazol must not be dissolved in lidocaine
solutions.
- Hypersensitivity to lidocaine (IM administration).
4.4 Special warnings and precautions for
use
Particular caution is required in patients with an allergic diathesis, with bronchial asthma or hay
fever. Prior to administering cefazol
previous hypersensitivity reactions to other beta-lactams
(penicillins or cephalosporins) must be investigated.
patients
exhibiting
allergic
reactions, the
product
must
discontinued and appropriate
symptomatic therapy instituted. Serious acute hypersensitivity reactions may require adrenaline
(epinephrine) and other emergency measures, including oxygen, i.v. fluids, i.v. antihistamines,
corticosteroids, pressor amines and airway management, as clinically indicated.
Cross-allergy with other cephalosporins and occasional cross-allergies with penicillins must be
borne in mind. In cases of known hypersensitivity to penicillin, cross-allergy with other beta-
lactams, e.g. cephalosporins, must be taken into account. cross-hypersensitivity among beta-
lactam antibiotics has been clearly documented and may occur in up to 10% of patients with a
history of penicillin allergy.
Severe
hypersensitivity
reactions
(anaphylaxis)
with
occasional
fatal
outcomes
have
been
reported in patients undergoing treatment with beta-lactam antibiotics (see section 4.8). These
reactions are more likely to occur in persons with a history of known hypersensitivity to beta-
lactam antibiotics.
In patients with impaired renal function, the dosage and/or dosing frequency must be adjusted to
the degree of renal
dysfunction
(see section 4.2).
As with other
-lactam antibiotics, seizures may
occur if inappropriately high doses are administered to patients with impaired renal function.
While cefazolin only rarely causes
renal
impairment, monitoring of renal function is nonetheless
recommended, especially ·in severely ill patients receiving maximum doses and patients
Page 5 of 13
under concomitant
treatment
with
other potentially nephrotoxic medicinal products, such
aminoglycosides or potent diuretics (e.g. furosemide).
As with all cephalosporins, Cefazolin should be prescribed with caution in individuals with a history
of gastrointestinal disease, particularly colitis.
Coagulation disorders
may rarely
occur during
treatment with
cefazolin.
At risk are patients
with
risk
factors leading
vitamin K
deficiency or
affecting
other coagulation mechanisms
(parenteral nutrition, malnutrition, impaired hepatic and renal function, thrombocytopenia). The
same
applies to
comorbidities
(e.g.
haemophilia,
gastrointestinal
ulcers)
that
trigger
aggravate haemorrhages
Prothrombin values should therefore be monitored in such cases. If
these values are reduced, vitamin K replacement should be given (10 mg/week).
In the event of severe and persistent diarrhoea, antibiotic-associated pseudomembranous colitis
should be considered, which can be life-threatening. Cefazolin should therefore be discontinued
immediately
such
cases
appropriate
therapy
instituted.
Antiperistaltic
agents
contraindicated.
During long-term use of cefazolin, non-sensitive pathogens may proliferate. Patients
should therefore be carefully monitored. If superinfection occurs, appropriate measures should be
taken. Treatment with antibacterial agents 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.”
In patients with hypertension or heart failure, the sodium content of the solution for injection
must be taken into account (48 mg per 1g cefazolin).
Children and adolescents
Cefazol should not be
administered
to premature and newborn infants of less than one month of
age, as no experience is available and the safety of such use has not been demonstrated.
Athletes should bear in mind that positive results may be obtained in anti-doping tests when
cefazol is dissolved in lidocaine.
Not for intrathecal use.
Prescribing cefazol in the absence of a proven or strongly suspected bacterial infection or a
prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the
development of drug-resistant bacteria.
4.5 Interaction with other medicinal
products
and other forms of interaction
Concomitant administration
contraindicated
Antibiotics
Cefazol must
administered
together with
antibiotics
with
bacteriostatic
activity (e.g.
tetracyclines, sulphonamides, erythromycin, chloramphenicol), as antagonistic effects have been
observed during in vitro tests.
Concomitant administration not
recommended
Probenecid
Renal clearance of cefazol is reduced when probenecid is co-administered.
Precautions
Vitamin
K1
Some cephalosporins
such
cefamandole, cefazolin and
cefotetan
interfere with the
metabolisation of
vitamin
particularly in
cases
vitamin
deficiency.
Substitution of
vitamin K1 may therefore be necessary.
Page 6 of 13
Anticoagulants
Cephalosporins may, in very rare cases, lead to coagulation disorders (see section 4.4.).
oral
anticoagulants or high heparin doses are adjuvantly administered, coagulation values must be
monitored.
Nephrotoxic
substances
It cannot be ruled out that the nephrotoxic effect of antibiotics (e.g. aminoglycosides, colistin,
polymyxin
diuretics
(e.g.
furosemide) may
aggravated.
co-administered with
cefazolin, renal function tests should be carefully monitored.
Laboratory tests
Laboratory tests may
give a
false-positive response for urine glucose if Benedict's solution,
Fehling's solution or Clinitest® tablets are used, but not when enzyme-based detection methods
are applied.
The indirect and direct Coombs' test can also give false-positive results. This may also apply to
newborn infants whose mothers have been receiving cephalosporins.
Oral
contraceptives
Cefazolin may influence the efficacy of hormonal contraceptives. For this reason, use of
additional birth
control methods besides hormonal contraceptives is
recommended during
course of treatment with cefazol.
4.6 Fertility,
pregnancy
and
lactation
Pregnancy
To date, there. is insufficient experience for the use of cefazol during human
pregnancy.
Hence, cefazol should only be used during pregnancy after careful benefit/risk
assessment.
This applies particularly to the first trimester. Cefazol crosses the
placenta.
Lactation
Cefazol is excreted in human milk at low concentrations. In breast-fed infants,
sensitisation
and changes
in the intestinal
flora and Candida
infections may
occur.
In these
cases,
breast-
feeding should be suspended during
treatment.
4.7 Effects on ability to drive and use
machines
Cefazol has no influence or negligible influence on the ability to drive and
machines.
However, some adverse reactions (e.g. vertigo, headache,
paraesthesia,
agitation, seizures;
see section 4.8) may affect the ability to concentrate and reaction
times
and may therefore
impair the ability to drive or use
machines.
4.8
Undesirable
effects
The undesirable effects are categorised as
follows:
Very
Common: ≥ 1/10
Common: ≥ 1/100 to < 1/10
Uncommon: ≥ 1/1,000 to <1/100
Rare: ≥1/10,000 to <1/1,000
Very rare: < 1/10,000 .
Not known: cannot be estimated from the available
data
System organ
classes
Common
Uncommon
Rare
Very rare
Not known
Infections and
Infestations
Long-term
treatment or
repeated use
lead
superinfections
Page 7 of 13
System organ
classes
Common
Uncommon
Rare
Very rare
Not known
colonisation
with
resistant
bacteria
or yeast-like fungi
(oral
thrush,
vaginal
candidiasis)
Blood and
lymphatic
system
disorders
Thrombocytopenia,
neutropenia,
leukopenia,
eosinophilia,
agranulocytosis,
haemolytic
anaemia
Coagulation
disorders,
haemorrhages
Leukocytosis,
granulocytosis,
monocytosis,
lymphocytopenia,
basophilia,
reduced
haemoglobin
and/or
haematocrit,
aplastic anaemia,
pancytopenia
Immune
system
disorders
Allergic
skin
reactions
such
erythema,
generalized
exanthema,
Urticaria and
pruritus
Serious
hypersensitivity
reactions such
Angioderma and
drug fever
Life-
threatening
anaphylacti
c shock
Erythema
exsudativum
multiform
Interstitial
pneumonia
pneumonitis,
Lyell´s
syndrome,
Stevens-
Johnson
syndrome
Nervous
system
disorders
Headache,
dizziness,
malaise,
tiredness, vertigo,
paraesthesia,
excitation of
central
nervous
system,
hyperactivity,
nervousness or
anxiety,
sleeplessness,
sleepiness,
weakness,
flushes,
colour
perception
changes
confused
states,
myoclonus,
seizures§
convulsive fits§,
aseptic
meningitis,
Gastrointestinal
disorders
Diarrhoea,
nausea, loss
appetite,
flatulence,
abdominal
Pseudomem-
branous colitis+
Page 8 of 13
System organ
classes
Common
Uncommon
Rare
Very rare
Not known
pain#
Hepatobiliary
disorders
Mild,
transient
elevation of
AST,
ALT and
alkaline
phosphatase
Reversible
hepatitis
cholestatic
jaundice
Raised
GGT,
bilirubin
and/or
Renal
and
urinary
disorders
Interstitial
nephritis
other
renal
disorders$
Transient rise
levels
(blood,
urea,
nitrogen)
serum
creatinine
concentrations,
nephrotoxicity$
General
disorders
and
administration
site
conditions
Phlebitis,
thrombophlebitis
Chest
pains,
pleural
effusion,
dyspnoea
respiratory
distress,
cough,
rhinitis, raised
lowered
serum
glucose
concentration,
genital and
anal
pruritus,
genital
moniliasis,
vaginitis,
pain
from
administration.
Photosensitive
phenomena have
been described
* At risk are patients with risk factors leading to vitamin K deficiency or affecting other
coagulation
mechanisms
as well as patients with disorders that can trigger or
aggravate
haemorrhages.
* * Symptom, which may require appropriate immediate emergency
measures.
§
Particularly in the event of an overdose or unadjusted dosage in patients with
renal
impairment.
# In most cases, the symptoms are mild in nature and often resolve, if not during, then after
discontinuation of
treatment.
+ In the event of severe and persistent diarrhoea during or after treatment with cefazol,
doctor must be consulted, as this may a sign of a severe condition
(pseudomembranous
colitis), which must be treated immediately (e.g.
with
vancomycin oral
250 mg
times
daily). The patient must refrain from all self-medication with antiperistaltic
agents.
$ Mostly occurring in severely ill patients receiving several medicinal
products.
Reporting of suspected adverse reactions
Suspected adverse reactions should be reported by the physician or other healthcare provider to
Ministry
Health
according
National
Regulation
using
online
form
(https://forms.gov.il/globaldata/getsequence/getsequence.aspx?formType=AdversEffectMedic%40
moh.gov.il)
(adr@MOH.HEALTH.GOV.IL
Additionally,
should
also
report
to
www.perrigo‐pharma.co.il.
Page 9 of 13
4.9
Overdose
Symptoms of
overdose:
overdose
cause
pain,
inflammatory
reactions
phlebitis
injection
site.
Administration of very high parenteral cephalosporin doses can result in vertigo, paraesthesia
headache. Particularly
patients
with
renal
disease, seizures
occur
following an
overdose with
cephalosporins.
The following abnormal laboratory test results may occur after an overdose:
elevated
creatinine values, BUN, liver enzyme values and bilirubin; positive Coombs'
test;
thrombocytosis and thrombocytopenia, eosinophilia, leukopenia and prolongation of
prothrombin
time.
Treatment of an
overdose:
If seizures occur, the product must be discontinued immediately. Treatment
with
anticonvulsants
may be indicated. Vital body functions and relevant laboratory
parameters
must be very carefully
monitored. In the event of a severe overdose, a combination
haemodialysis and haemoperfusion
beneficial
other
treatments are
unsuccessful,
although
supportive
data to this are
lacking. Peritoneal dialysis is
ineffective.
5.
PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic
properties
Pharmacotherapeutic group: other beta-lactam antibiotics, 1
-generation
cephalosporins
ATC code:
J01DB04
Mode of
action
The mechanism of action of cefazolin is based on inhibition of bacterial cell wall synthesis
growth phase), due to blockade of penicillin-binding proteins (PBPs),
e.g.
transpeptidases. This
results in a bactericidal
action.
Pharmacokinetic/pharmacodynamic relationship
Efficacy largely depends on the length of time during which the active substance
level
remains
above the minimum inhibitory concentration (MIC) of the
pathogen.
Resistance
mechanisms
Resistance to cefazolin can be due to the following
mechanisms:
Inactivation
by beta-lactamases:
cefazolin is
largely stable against penicillinases
Gram-positive bacteria, although it has only low stability against numerous
plasmid-
encoded
beta-lactamases, e.g. extended-spectrum beta-lactamases (ESBLs)
chromosome-encoded
beta-lactamases of the AmpC
type.
Reduced
affinity
PBPs
cefazolin:
acquired
resistance
pneumococci
other
streptococci is due to modifications of PBPs present as a result of a
mutation.
However, the formation of an additional PBP with reduced affinity for cefazolin
responsible
for resistance in methicillin (oxacillin)-resistant
staphylococci.
In Gram-negative bacteria, insufficient penetration of cefazolin through the outer
cell
wall can lead to insufficient PBP
inhibition.
Cefazolin can be actively transported from the cell by efflux pumps.
Cefazolin is partially or completely cross-resistant with other
cephalosporins
penicillins.
Breakpoints
Cefazolin is tested using the standard dilution series. The following minimum
inhibitory
concentrations for susceptible and resistant germs have been
established:
EUCAST (European Committee on Antimicrobial Susceptibility Testing) breakpoints
(2011-
01-05, version
Page 10 of 13
Pathogen
Susceptibility
Resistance
Staphylococcus
spp.
Streptococcus group A, B, C,
Other streptococci
< 0.5 mg/1
> 0.5 mg/1
Non-species-specific
breakpoints
1 mg/1
> 2 mg/1
* Susceptibility of staphylococci to cefazolin can be derived from their susceptibility to
cefoxitin.
** Beta-lactam susceptibility of. group A, B, C and G beta-haemolytic streptococci can be
derived from their susceptibility to penicillin.
§ For endocarditis, see national or international endocarditis guidelines for Streptococci
viridans breakpoints.
Susceptibility
For individual species, the prevalence of acquired resistance may vary geographically and
over time. Therefore, local information on the resistance situation is required, particularly for
the adequate treatment of severe infections. If, based on the local resistance situation, the
·efficacy of cefazolin is
questionable,
expert
therapeutic
advice should be sought.
Usually susceptible
species
Gram-positive
aerobes
Staphylococcus aureus
(methicillin-sensitive)°
Staphylococcus saprophyticus °
Streptococcus agalactiae°
Streptococcus
pneumoniae
Streptococcus pyogenes
Species, in which acquired resistance may pose a
problem
during
use
Gram-positive
aerobes
Staphylococcus aureus
Staphylococcus epidermidis
Staphylococcus haemolyticus
Staphylococcus hominis
Staphylococcus pneumoniae (penicillin-intermediate)
Gram-negative
aerobes
Escherichia
coli
Haemophilus influenzae
$
Page 11 of 13
Klebsiella
oxytoca
Klebsiella
pneumoniae
Proteus
mirabilis
Naturally resistant species
Gram-positive
aerobes
Enterococcus
spp.
Staphylococcus aureus
(methicillin-sensitive)
Staphylococcus pneumoniae
(penicillin-resistant)
Gram-negative
aerobes
Acinetobacter
baumannii
Citrobacter
freundii
Enterobacter
spp.
Morganella
morganii
Moraxella
catarrhalis
Proteus
vulgaris
Pseudomonas
aeruginosa
Serratia
marcescens
Stenotrophomonas
maltophilia
Anaerobes
Bacteroides
fragilis
Other
micro-organisms
Chlamydia
spp.
Chlamydophila
spp.
Legionella
spp.
Mycoplasma
spp.
° Susceptibility is assumed in the primary literature, standard works and therapeutic
recommendations.
$ Natural susceptibility of most isolates lies within the intermediate range.
+ The rate of resistance is over 50% in at least one region.
No current data available; in studies (more than 5 years old), the proportion of resistant
strains is stated to be> 50%.
Outside the hospital setting, the
resistance
rate is< 10%.
Further
information
Penicillin-resistant Streptococcus pneumoniae is cross-resistant to
cephalosporins
such
cefazolin.
5.2
Pharmacokinetic
properties
Cefazol is administered parenterally. Peak plasma levels
are(reached
after IM
injection
within 30 to 75
minutes.
Plasma concentrations
(µg/ml)
after intramuscular
administration.
Dose
30 min
500 mg 36.2 36.8 37.9 15.5 6.3 3
60.1
63.8
54.3
29.3
13.2
Page 12 of 13
Plasma concentrations
g/ml}
after intravenous administration of 1
5 min 15 min 30 min 1 h 2 h 4h
188.4
135.8
106.8
73.7
45.6
16.5
Approximately 65 - 92% of cefazolin is bound to plasma proteins. Cefazolin has
good
penetration into tissue such as skeletal muscles, myocardium, bone, bile and
gallbladder,
endometrium
and vagina. Cefazolin penetrates the placental barrier and is also excreted
human milk. Diffusion
into cerebrospinal fluid and aqueous humour is
inadequate.
Cefazolin is not metabolised. It is excreted in the microbiologically active form mainly via
kidneys
by means of glomerular filtration. A small moiety is excreted via the bile. The
plasma
elimination half-
life is approximately two hours; in patients with renal insufficiency,
plasma half-life may be
prolonged.
5.3 Preclinical safety
data
Repeated administration of cefazolin to dogs and rats using different routes of injection
over
a period
of one to six months showed no significant effects on biochemical
haematological
values. Signs of neurotoxicity were seen in some
studies.
After IM injection, cefazolin is only poorly tolerated at the injection
site.
In studies on rabbits, the kidney appeared to be the target organ, though not in rats
and dogs.
Cefazolin showed no teratogenic activity and did not affect general reproductive
functions.
No studies
are available concerning mutagenicity and
carcinogenicity.
6.
PHARMACEUTICAL PARTICULARS
6.1 List of
excipients
None.
6.2
Incompatibilities
Cefazolin is incompatible with amikacin disulphate, amobarbital sodium, ascorbic
acid,
bleomycin
sulphate, calcium glucoheptonate, calcium gluconate, cimetidine
hydrochloride,
colistin
methanesulphonate
sodium, erythromycin glucoheptonate, kanamycin
sulphate,
oxytetracycline
hydrochloride, pentobarbital sodium, polymyxin B sulphate and
tetracycline
hydrochloride
6.3
Shelf life
3 years
After reconstitution:
From a microbiological point of view, the ready-to-use solution should be used immediately. If not
used immediately, the observance of storage times and
conditions
prior to administration are the
responsibility of the user. After reconstitution, a period of 24 hours at 2
-
8°C must not be
exceeded, unless the preparation took place
under
controlled and validated aseptic
conditions.
6.4 Special precautions for storage
Powder for solution for injection or infusion:
Store below 25°C. Keep the container in the outer carton in order to protect
from light.
Prepared solution:
Store in a refrigerator
2°C
8°C).
Page 13 of 13
6.5 Nature and contents of container
Nature
15 ml
-clear
glass vials, class Ill (Ph.Eur.), with halogenated isobutene-isoprene rubber stopper with flip-
off crimp cap.
Contents
Vials in packs of: 10 and 25 per box.
6.6 Special precautions for disposal and other handling
Cefazol 1g
powder for solution for injection:
To prepare an IV solution for injection, the powder is dissolved in water for injections or in
0.9% sodium chloride solution. For this, at least 4 ml solvent per gram of powder is used.
Intramuscular injections should be administered into a large muscle mass. For IM administration, the
product should be dissolved in a 0.5% lidocaine solution. 500 mg and 1
powder are dissolved in 2 ml and 4
ml, respectively.
Use only freshly prepared, clear and colourless
solutions.
For single withdrawal only.
Any unused solution should be
discarded.
The prepared solution should be visually inspected for particles and discolouration prior
administration. The prepared solution is
clear.
7.
MANUFACTURER
Sandoz GmbH,
BIOCHEMIESTRASSE 10, A-6250 KUNDL, AUSTRIA
8.
REGISTRATION HOLDER
Perrigo Israel Agencies Ltd. 29 Lehi st., Bnei-Brak 51200
9.
MARKETING
AUTHORISATION NUMBER
Cefazol 1g 141-70-31813-00
General classification for
supply
Medicinal product subject to medical prescription only.
The content of this leaflet was checked and approved by the Ministry of Health in May 2015.
30.07.2015