Open menu Close menu Open Search Close search

AMERICAN DRUGS | ANATOMY | HEALTH TOPICS | HIV/AIDS GLOSSARY | DISEASES | HEALTH ARTICLES | GENOME | OCCUPATIONS

Zactran


Spanish Simplified Chinese French German Russian Hindi Arabic Portuguese
















Summary for the public


What is Zactran?

Zactran is a solution for injection for cattle that contains the active substance gamithromycin (150 mg/ml).


What is Zactran used for?

Zactran is an anibiotic. It is used in cattle to treat or to prevent Bovine Respiratory Disease (BRD) caused by the bacteria Mannheimia haemolytica, Pasteurella multocida and Histophilus somni. When using Zactran to prevent BRD the presence of the disease in the herd should be established first. Zactran is given as a single subcutaneous (under the skin) injection. The dose to use is calculated based on the weight of the animal being treated. Animals weighing more than 250 kg will need to be injected at more than one site.


How does Zactran work?

The active substance of Zactran, gamithromycin, is an antibiotic of the macrolide group. It works by blocking the bacteria’s ribosomes, which are the parts of the cells where proteins are produced, and consequently inhibiting the growth of bacteria.


How has Zactran been studied?

Appropriate studies have been made to show the effectiveness of Zactran in cattle. The main clinical studies were carried out on farms in a number of countries in Europe, as well as outside the EU.

For the treatment of BRD, the effect of Zactran was studied in comparison to another macrolide antibiotic (tulathromycin) already authorised in the EU, in cattle already affected by the disease.

For the prevention of BRD the effect of Zactran was studied in comparison to placebo (dummy treatment) in cattle which had been in contact with diseased animals on the same farm and, therefore, likely to also develop the disease.


What benefit has Zactran shown during the studies?

Zactran has been shown to be efficacious in the treatment and prevention of BRD, associated with Mannheimia haemolytica, Pasteurella multocida and Histophilus somni. In the treatment of BRD Zactran has been shown to be as effective as tulathromycin.


What is the risk associated with Zactran?

After injection of Zactran, up to 45% of animals will show some swelling at the site of injection. The animals may also show some signs of slight pain for one day. The swelling generally resolves in 3 to 14 days but may persist in some animals for up to 35 days after treatment.


What are the precautions for the person who gives the medicine or comes into contact with the animal?

People with known hypersensitivity (allergy) to similar antibiotics (macrolide class) should avoid contact with Zactran. Zactran may cause irritation to the eyes or the skin. Therefore, contact with skin or eyes should be avoided. If Zactran comes in direct contact with the eyes, they should be flushed immediately with clean water. 

Similarly, if Zactran comes into direct contact with skin the affected area should be washed immediately with clean water. In case of accidental self-injection, medical advice should be sought immediately and the package leaflet or the label should be presented to the physician.


What is the time to allow before the animal can be slaughtered and the meat used for human consumption (withdrawal period)?

After the last administration of Zactran, cattle should not be slaughtered for 64 days.


What is the time to allow before milk can be taken from the animal for human consumption?

As the safety of Zactran in breeding animals has not been studied, the medicine should not be used in lactating cows or heifers producing milk for human consumption. It should also not be used in pregnant cows or heifers which are intended to produce milk for human consumption within 2 months of calving.


Why has Zactran been approved?

The Committee for Medicinal Products for Veterinary Use (CVMP) concluded that the benefits of Zactran exceeded the risks for the therapeutic and preventive treatment of bovine respiratory disease (BRD) associated with Mannheimia haemolytica, Pasteurella multocida and Histophilus somni, (the presence of the disease in the herd should be established before preventive treatment) and recommended that Zactran should be given a marketing authorisation. The benefit-risk balance may be found in module 6 of this EPAR.


Other information about Zactran

The European Commission granted a marketing authorisation valid throughout the European Union, for Zactran to Merial on 24/07/2008. Information on the prescription status of this product may be found on the label/outer package.

Authorisation details
Name: Zactran
EMEA Product number: EMEA/V/C/000129
Active substance: gamithromycin
INN or common name: gamithromycin
Species: Cattle
ATCvet Code: QJ01FA95
Marketing Authorisation Holder: Merial
Revision: 5
Date of issue of Market Authorisation valid throughout the European Union: 24/07/2008
Contact address:
Merial
29 avenue Tony Garnier
69007 Lyon
France




Product Characteristics

ANNEX I

SUMMARY OF PRODUCT CHARACTERISTICS


1.
NAME OF VETERINARY THE MEDICINAL PRODUCT
ZACTRAN 150mg/ml solution for injection for cattle
2.
QUALITATIVE AND QUANTITATIVE COMPOSITION
One ml contains:
Active substance:
Gamithromycin
150 mg
For a full list of excipients, see section 6.1.
1 g
3.
PHARMACEUTICAL FORM
Solution for injection. Colourless to pale yellow solution.
4.
CLINICAL PARTICULARS
4.1 Target species
Cattle
4.2 Indications for use, specifying the target species
Therapeutic and preventive treatment of bovine respiratory disease (BRD) associated with
Mannheimia haemolytica , Pasteurella multocida and Histophilus somni .
The presence of the disease in the herd should be established before preventive treatment.
4.3 Contraindications
Do not use in case of hypersensitivity to macrolide antibiotics or to any of the excipients.
Do not use the product simultaneously with other macrolides or lincosamides (see section 4.8).
Do not use in lactating cattle producing milk for human consumption.
Do not use in pregnant cows or heifers, which are intended to produce milk for human consumption,
within 2 months of expected parturition.
4.4 Special warnings
None
4.5 Special precautions for use
Special precautions for use in animals
Use of the veterinary medicinal product should be based on susceptibility testing and take into account
official and local policies on the use of antimicrobials in farm animals.
2/20
Excipient:
onothioglycerol
Special precautions to be taken by the person administering the veterinary medicinal product to
animals
People with known hypersensitivity to the macrolide class should avoid contact with the veterinary
medicinal product. Gamithromycin may cause irritation to eyes or/and skin.
Avoid contact with skin or eyes If eye exposure occurs, flush eyes immediately with clean water. If
skin exposure occurs, wash the affected area immediately with clean water.
In case of accidental self-injection, seek medical advice immediately and show the package leaflet or
the label to the physician.
Wash hands after use.
4.6 Adverse reactions (frequency and seriousness)
During clinical trials no treatment related abnormalities were observed except some transient injection
site swellings. Visible injection site swellings may develop in up to 45% of treated animals associated
with occasional, slight pain evident for one day. The swellings typically resolve within 3 to 14 days
but may persist in some animals for up to 35 days after treatment.
4.7 Use during pregnancy, lactation or lay
Based on laboratory animal data, gamithromycin has not produced any evidence of selective
developmental or reproductive effects. The safety of gamithromycin during pregnancy and lactation
has not been evaluated in cattle. Use only according to the risk/benefit assessment by the responsible
veterinarian.
4.8 Interaction with other medicinal products and other forms of interaction
Cross resistance may occur with other macrolides.
Avoid simultaneous administration of antimicrobials with a similar mode of action such as other
macrolides or lincosamides.
4.9 Amounts to be administered and administration route
A single subcutaneous injection of 6 mg gamithromycin/kg body weight (equivalent to 1 ml/25 kg
body weight) in the neck.
For treatment of cattle over 250 kg body weight, divide the dose so that no more than 10 ml are
injected at one site.
To ensure correct dosage body weight should be determined as accurately as possible to avoid
underdosing.
4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
Clinical studies have demonstrated the wide margin of safety for gamithromycin injection in cattle. In
a young adult cattle study, gamithromycin was administered by subcutaneous injection at 6, 18, and 30
mg/kg (1, 3, and 5 times the recommended dose) and repeated three times at 0, 5 and 10 days (three
times the recommended duration of use). Injection site reactions were noted in a dose related manner.
4.11 Withdrawalperiod
Meat and offal: 64 days
Not permitted for use in lactating animals producing milk for human consumption.
Do not use in pregnant cows or heifers, which are intended to produce milk for human consumption,
within 2 months of expected parturition.
3/20
5.
PHARMACOLOGICAL PROPERTIES
Pharmacotherapeutic group: Macrolides, ATCvet code: QJ01FA95
5.1 Pharmacodynamic properties
Gamithromycin is an azalide, 15-membered semisynthetic macrolide class antibiotic with uniquely
positioned alkylated nitrogen at 7a-position of the lactone ring. This special chemistry facilitates rapid
absorption at physiological pH and a long duration of action at the target tissue, lung.
Macrolides in general have both bacteriostatic and bactericidal action mediated through disruption of
bacterial protein synthesis. Macrolides inhibit bacterial protein biosynthesis by binding to the 50S
ribosomal subunit and by preventing peptide chain elongation. The in vitro data show that
gamithromycin acts in a bactericidal manner. The broad spectrum antimicrobial activity of
gamithromycin includes Mannheimia haemolytica, Pasteurella multocida and Histophilus somni , the
bacterial pathogens most commonly associated with BRD. The MIC and MBC data are reported from
a representative sample of isolates from field materials within different geographic EU areas.
Species
MIC 90s
MBC 90s
µg/ml
Mannheimia haemolytica
0.5
1
Pasteurella multocida
1
2
Histophilus somni
1
2
Three mechanisms are generally considered responsible for resistance to the macrolide class of
compounds. This is often referred to as MLS B resistance as it affects macrolides, lincosamides and
streptogramins. The mechanisms involve the alteration of the ribosomal target site, the utilization of
active efflux mechanism and the production of inactivating enzymes.
5.2 Pharmacokinetic particulars
Gamithromycin administered subcutaneously into the neck of cattle at single dosage of 6 mg/kg body
weight, resulted in rapid absorption with peak plasma concentrations observed after 30 to 60 min with
a long plasma half-life (>2 days). The bioavailability of the drug was >98% with no gender
differences. The volume of distribution at steady-state was 25 l/kg. Gamithromycin levels in lung
reached a maximum in less than 24 hr, with lung-to-plasma ratio of >264 indicating that the drug was
absorbed rapidly into the target tissue for BRD.
In vitro plasma protein binding studies determined that the mean concentration of the free drug was
74%. Biliary excretion of the unchanged drug was the major route of elimination.
6.
PHARMACEUTICAL PARTICULARS
6.1 List of excipients
Monothioglycerol
Succinic Acid
Glycerol Formal
6.2 Incompatibilities
In the absence of compatibility studies, this veterinary medicinal product should not be mixed with
other veterinary medicinal products.
6.3 Shelf life
Shelf life of the veterinary medicinal product as packaged for sale: 3 years
4/20
 
Shelf life after first opening the immediate packaging: 28 days
6.4. Specialprecautionsforstorage
This veterinary medicinal product does not require any special storage conditions.
6.5 Nature and composition of immediate packaging
Type 1 glass vial with a chlorobutyl rubber stopper and an aluminum cap.
Polypropylene vial with a chlorobutyl rubber stopper and an aluminum cap.
Box containing 1 vial of 100, 250 or 500 ml
Not all pack sizes may be marketed.
6.6 Special precautions for the disposal of unused veterinary medicinal product or waste
materials derived from the use of such products
Any unused veterinary medicinal product or waste materials derived from such veterinary medicinal
product should be disposed of in accordance with local requirements.
7.
MARKETING AUTHORISATION HOLDER
MERIAL
29 avenue Tony Garnier
F - 69007 Lyon
France
8.
MARKETING AUTHORISATION NUMBER(S)
EU/2/08/082/001
EU/2/08/082/002
EU/2/08/082/003
EU/2/08/082/004
EU/2/08/082/005
EU/2/08/082/006
9.
DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION
24/07/2008
10. DATE OF REVISION OF THE TEXT
20/07/2009
Detailed information on this veterinary medicinal product is available on the website of the European
Medicines Agency (EMEA) http://www.emea.europa.eu/
PROHIBITION OF SALE, SUPPLY AND/OR USE
Not applicable.
5/20
ANNEX II
A.
MANUFACTURING AUTHORISATION HOLDER RESPONSIBLE FOR
BATCH RELEASE
B.
CONDITIONS OR RESTRICTIONS OF THE MARKETING
AUTHORISATION REGARDING SUPPLY OR USE
C.
CONDITIONS OR RESTRICTIONS OF THE MARKETING
AUTHORISATION WITH REGARD TO SAFE AND EFFECTIVE USE
D.
STATEMENT OF THE MRLs
6/20
A. MANUFACTURING AUTHORISATION HOLDER RESPONSIBLE FOR BATCH
RELEASE
Name and address of the manufacturer responsible for batch release
MERIAL
4, Chemin du Calquet
31057 Toulouse Cedex
France
B. CONDITIONS OR RESTRICTIONS OF THE MARKETING AUTHORISATION
REGARDING SUPPLY OR USE
To be supplied only on veterinary prescription.
C. CONDITIONS OR RESTRICTIONS OF THE MARKETING AUTHORISATION WITH
REGARD TO THE SAFE AND EFFECTIVE USE OF THE PRODUCT
Not applicable.
D. STATEMENT OF THE MRLs
Gamithromycin is included in Annex III of Council Regulation (EEC) No 2377/90 in accordance with
the following table:
Pharmacologically
active substance
Marker residue Animal
species
MRLs
Target
tissues
Other provisions
Gamithromycin
Gamithromycin Bovine 20
µ
g/kg
Fat
Liver
Kidney
Provisional MRLs
expire on 1.7.2009
200
µ
g/kg
100
µ
g/kg
Not for use in animals
producing milk for
human consumption
Annex II of Council Regulation (EEC) No 2377/90:
Pharmacologically active substance(s) Animal species
Other provisions
Monothioglycerol 1
All food animal species
Succinic Acid (E 363) 2
All food animal species
Glycerol Formal 3
All food animal species
1 OJ No. L290 of 05.12.1995
2 OJ No. L61 of 18.03.1995
3 OJ No. L5 of 09.01.1997
7/20
 
ANNEX III
LABELLING AND PACKAGE LEAFLET
8/20
A. LABELLING
9/20
PARTICULARS TO APPEAR ON THE OUTER PACKAGE
{BOX 100 ml, 250ml, 500ml}
1.
NAME OF VETERINARY THE MEDICINAL PRODUCT
ZACTRAN 150 mg/ml solution for injection for cattle
Gamithromycin
2.
STATEMENT OF ACTIVE AND OTHER SUBSTANCES
1 ml contains 150 mg of gamithromycin
1 mg of monothioglycerol
3.
PHARMACEUTICAL FORM
Solution for injection
4.
PACKAGE SIZE
100 ml
250 ml
500 ml
5.
TARGET SPECIES
Cattle
6.
INDICATION(S)
7.
METHOD AND ROUTE(S) OF ADMINISTRATION
Single subcutaneous injection of 6 mg gamithromycin/kg body weight (equivalent to 1 ml/25 kg body
weight).
Read the package leaflet before use.
8.
WITHDRAWAL PERIOD
Withdrawal period
Meat and offal: 64 days
Not permitted for use in lactating animals producing milk for human consumption.
Do not use in pregnant cows or heifers, which are intended to produce milk for human consumption,
within 2 months of expected parturition.
10/20
 
9.
SPECIAL WARNING(S), IF NECESSARY
People with known hypersensitivity to the macrolide class should avoid contact with the product.
Gamithromycin may cause irritation to eyes or/and skin.
Avoid contact with skin or eyes. If eye exposure occurs, flush eyes immediately with clean water. If
skin exposure occurs, wash the affected area immediately with clean water.
In case of accidental self-injection, seek medical advice immediately and show the package leaflet or
the label to the physician.
Wash hands after use.
10. EXPIRY DATE
EXP
Once opened, use within 28 days.
11. SPECIAL STORAGE CONDITIONS
Not applicable.
12. SPECIAL PRECAUTIONS FOR THE DISPOSAL OF UNUSED PRODUCTS OR
WASTE MATERIALS, IF ANY
Dispose of waste material in accordance with local requirements.
13. THE WORDS “FOR ANIMAL TREATMENT ONLY” AND CONDITIONS OR
RESTRICTIONS REGARDING SUPPLY AND USE, if applicable
For animal treatment only - to be supplied only on veterinary prescription.
14. THE WORDS “KEEP OUT OF THE REACH AND SIGHT OF CHILDREN”
Keep out of the reach and sight of children.
15. NAME AND ADDRESS OF THE MARKETING AUTHORISATION HOLDER
MERIAL
29 avenue Tony Garnier
F - 69007 Lyon
France
16. MARKETING AUTHORISATION NUMBER(S)
EU/2/08/082/001
EU/2/08/082/002
EU/2/08/082/003
EU/2/08/082/004
11/20
 
EU/2/08/082/005
EU/2/08/082/006
17. MANUFACTURER’S BATCH NUMBER
Lot
12/20
 
PARTICULARS TO APPEAR ON THE IMMEDIATE PACKAGE
{VIAL , except 100ml trilingual }
1.
NAME OF VETERINARY THE MEDICINAL PRODUCT
ZACTRAN 150 mg/ml solution for injection for cattle
Gamithromycin
2.
STATEMENT OF ACTIVE AND OTHER SUBSTANCES
1 ml contains 150 mg of gamithromycin
1 mg of monothioglycerol
3.
PHARMACEUTICAL FORM
Solution for injection
4.
PACKAGE SIZE
100 ml
250 ml
500 ml
5.
TARGET SPECIES
Cattle
6.
INDICATION(S)
7.
METHOD AND ROUTE(S) OF ADMINISTRATION
Single subcutaneous injection of 6 mg gamithromycin/kg body weight (equivalent to 1 ml/25 kg body
weight).
Read the package leaflet before use.
8.
WITHDRAWAL PERIOD
Withdrawal period
Meat and offal: 64 days
9.
SPECIAL WARNING(S), IF NECESSARY
Gamithromycin may cause irritation to eyes or/and skin.
13/20
 
Avoid contact with skin or eyes. If eye exposure occurs, flush eyes immediately with clean water. If
skin exposure occurs, wash the affected area immediately with clean water.
In case of accidental self-injection, seek medical advice immediately and show the package leaflet or
the label to the physician.
Wash hands after use.
10. EXPIRY DATE
EXP
Once opened, use within 28 days.
11. SPECIAL STORAGE CONDITIONS
Not applicable.
12. SPECIAL PRECAUTIONS FOR THE DISPOSAL OF UNUSED PRODUCTS OR
WASTE MATERIALS, IF ANY
Read the package leaflet before use
13. THE WORDS “FOR ANIMAL TREATMENT ONLY” AND CONDITIONS OR
RESTRICTIONS REGARDING SUPPLY AND USE, if applicable
For animal treatment only - to be supplied only on veterinary prescription.
14. THE WORDS “KEEP OUT OF THE REACH AND SIGHT OF CHILDREN”
Keep out of the reach and sight of children.
15. NAME AND ADDRESS OF THE MARKETING AUTHORISATION HOLDER
MERIAL
29 avenue Tony Garnier
F - 69007 Lyon
France
16. MARKETING AUTHORISATION NUMBER(S)
EU/2/08/082/001
EU/2/08/082/002
EU/2/08/082/003
EU/2/08/082/004
EU/2/08/082/005
EU/2/08/082/006
14/20
 
17. MANUFACTURER’S BATCH NUMBER
Lot
15/20
 
PARTICULARS TO APPEAR ON THE IMMEDIATE PACKAGE
{VIAL, 100ml trilingual}
1.
NAME OF VETERINARY THE MEDICINAL PRODUCT
ZACTRAN 150mg/ml solution for injection for cattle
2.
QUANTITY OF THE ACTIVE SUBSTANCE
Gamithromycin
3.
CONTENTS BY WEIGHT, BY VOLUME OR BY NUMBER OF DOSES
100 ml
4.
ROUTE OF ADMINISTRATION
Subcutaneous use
5.
WITHDRAWAL PERIOD
Withdrawal period. Meat and offal: 64 days
6.
BATCH NUMBER
Lot
7.
EXPIRY DATE
EXP
Once opened, use within 28 days.
8.
THE WORDS “FOR ANIMAL TREATMENT ONLY”
For animal treatment only
16/20
 
B. PACKAGE LEAFLET
17/20
PACKAGE LEAFLET FOR:
ZACTRAN 150mg/ml solution for injection for cattle
1.
NAME AND ADDRESS OF THE MARKETING AUTHORISATION HOLDER AND OF
THE MANUFACTURING AUTHORISATION HOLDER RESPONSIBLE FOR BATCH
RELEASE, IF DIFFERENT
Marketing authorisation holder :
MERIAL
29 avenue Tony Garnier
F - 69007 Lyon
France
Manufacturer for the batch release :
MERIAL
4, Chemin du Calquet
F - 31057 Toulouse Cedex
France
2.
NAME OF VETERINARY THE MEDICINAL PRODUCT
ZACTRAN 150mg/ml solution for injection for cattle
Gamithromycin
3.
STATEMENT OF THE ACTIVE SUBSTANCE AND OTHER INGREDIENT
1 ml contains 150 mg of gamithromycin
1 mg of monothioglycerol
4.
INDICATIONS
Therapeutic and preventive treatment of bovine respiratory disease (BRD) associated with
Mannheimia haemolytica , Pasteurella multocida and Histophilus somni .
The presence of the disease in the herd should be established before preventive treatment.
5.
CONTRAINDICATIONS
Do not use in case of hypersensitivity to a certain type of antibiotics called macrolides or to any of the
excipients.
Do not use this product simultaneously with other macrolides or antibiotics known as lincosamides.
Do not use in lactating cattle producing milk for human consumption.
Do not use in pregnant cows or heifers, which are intended to produce milk for human consumption,
within 2 months of expected parturition.
6.
ADVERSE REACTIONS
Transient injection site swellings with occasional slight pain.
If you notice any serious effects or other effects not mentioned in this leaflet, please inform your
veterinarian.
18/20
7.
TARGET SPECIES
Cattle
8.
DOSAGE FOR EACH SPECIES, ROUTE AND METHOD OF ADMINISTRATION
A single subcutaneous injection of 6 mg gamithromycin/kg body weight (equivalent to 1 ml/25 kg
body weight) in the neck.
For treatment of cattle over 250 kg body weight, divide the dose so that no more than 10 ml are
injected at one site.
9.
ADVICE ON CORRECT ADMINISTRATION
To ensure correct dosage body weight should be determined as accurately as possible to avoid
underdosing.
10. WITHDRAWAL PERIOD
Withdrawal period. Meat and offal: 64 days
Not permitted for use in lactating animals producing milk for human consumption.
Do not use in pregnant cows or heifers, which are intended to produce milk for human consumption,
within 2 months of expected parturition
11. SPECIAL STORAGE PRECAUTIONS
Keep out of the reach and sight of children.
This veterinary medicinal product does not require any special storage conditions.
Do not use after the expiry date which is stated on the vial.
Shelf-life after first opening the container: 28 days.
12. SPECIAL WARNINGS
For the animal:
The safety of gamithromycin during pregnancy and lactation has not been evaluated in cattle. Use
according to the benefit/risk assessment by the responsible veterinarian.
For the user:
People with known hypersensitivity to the macrolide class should avoid contact with the product.
Gamithromycin may cause irritation to eyes or/and skin.
Avoid contact with skin or eyes. If eye exposure occurs, flush eyes immediately with clean water. If
skin exposure occurs, wash the affected area immediately with clean water.
In case of accidental self-injection, seek medical advice immediately and show the package leaflet or
the label to the physician.
Wash hands after use.
Cross resistance may occur with other macrolides.
ZACTRAN should not be mixed with other medicinal products.
19/20
13. SPECIAL PRECAUTIONS FOR THE DISPOSAL OF UNUSED PRODUCT OR WASTE
MATERIALS, IF ANY
Ask your veterinary surgeon how to dispose of medicines no longer required. These measures should
help to protect the environment.
14. DATE ON WHICH THE PACKAGE LEAFLET WAS LAST APPROVED
20/07/2009
Detailed information on this product is available on the website of the European Medicines Agency
(EMEA) http://www.emea.europa.eu/ .
15. OTHER INFORMATION
Box containing 1 vial of 100, 250 or 500 ml.
Not all pack sizes may be marketed.
20/20


Source: European Medicines Agency



- Please bookmark this page (add it to your favorites).
- If you wish to link to this page, you can do so by referring to the URL address below this line.



https://theodora.com/drugs/eu/zactran_veterinary.html

Copyright © 1995-2021 ITA all rights reserved.