Fatroseal 2.6 g Intramammary Suspension for Dry Cows
Active ingredient: Bismuth Subnitrate
Form
Intramammary
Species
Manufacturer
Fatro S.p.A.
VMD MA No.
11557/5002
What it's used for
In cows considered likely to be free of sub-clinical mastitis, the veterinary medicinal product can be used alone in dry cow management and mastitis contro...
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Paying less for Bismuth Subnitrate
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Prescription required
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Fatroseal 2.6 g Intramammary Suspension for Dry Cows — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
product can be used alone in dry cow management and mastitis control.
partially or fully removed. It is recommended to pinch the teat at the base as it aids in
positioning the paste in the teat cistern, sealing the teat canal from the top.
Short tip option: The short tip option allows for a partial insertion technique so that the
syringe only needs to be inserted in the teat end.
Long tip option: The long tip option may be used for treatment convenience for example to
prevent the tip from flipping out due to a moving or nervous cow.
Step 1: Removal of the breakable cap
Step 2: Short or long tip insertion
Infuse the contents of one intramammary syringe of the veterinary medicinal product into
each udder quarter immediately after the last milking of the lactation at drying off. Do not
massage the teat or udder after infusion of the veterinary medicinal product because it is
important that the sealant stays in the teat itself and does not enter the udder.
Care must be taken not to introduce pathogens into the teat in order to reduce the risk of
post-infusion mastitis.
It is essential that the teat is thoroughly cleaned and disinfected, with surgical spirit or
alcohol-impregnated wipes. The teats should be wiped until the wipes are no longer visibly
dirty. Teats should be allowed to dry prior to infusion. Infuse aseptically and take care to
avoid contamination of the syringe nozzle. Following infusion it is advisable to use an
appropriate teat dip or spray.
Under cold conditions the veterinary medicinal product may be warmed to room
temperature in a warm environment, to aid syringeability.
Do not use the veterinary medicinal product alone in cows with sub-clinical mastitis at
drying off.
Do not use in cows with clinical mastitis at drying off.
Do not use in cases of hypersensitivity to the active substance or to any of the excipients.
Very rare
(<1 animal / 10,000 animals treated,
including isolated reports):
Acute mastitis
1
Primarily due to poor infusion technique and lack of hygiene. Please refer to sections
3.5 and 3.9 regarding the importance of aseptic technique.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or its local representative or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.
Selection criteria may be based on the mastitis and cell count history of individual cows or
recognised tests for the detection of subclinical mastitis or bacteriology sampling.
Special precautions for safe use in the target species:
It is good practice to observe dry cows regularly for signs of clinical mastitis.
If a sealed quarter develops clinical mastitis, the affected quarter should be stripped out
manually before appropriate therapy is instituted.
To reduce the risk of contamination, do not immerse the syringe in water.
Use the syringe only once.
Since the veterinary medicinal product does not have antimicrobial activity, in order to
minimize the risk of acute mastitis due to poor infusion technique and lack of hygiene (see
section 3.6), it is crucial to follow the aseptic technique of administration described in
section 3.9.
Do not administer any other intramammary product following administration of the
veterinary medicinal product. In cows that may have sub-clinical mastitis, the veterinary
medicinal product may be used following administration of a suitable dry cow antibiotic
treatment to the infected quarter.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
Bismuth salts have been associated with hypersensitivity reactions.
People with known hypersensitivity (allergy) to bismuth salts should avoid contact with the
veterinary medicinal product.
This veterinary medicinal product may cause skin and eye irritation.
Avoid contact with skin or eyes.
Should skin or eye contact occur, wash the affected area thoroughly with water. If irritation
persists, seek medical advice and show this label to the physician.
If provided, the cleaning wipes may cause skin and eye irritation in some people due to the
presence of isopropyl alcohol and chlorhexidine digluconate. Avoid contact with skin or
eyes.
Wash hands after use.
Special precautions for the protection of the environment:
Not applicable.
subnitrate has only been shown with a cloxacillin-containing dry cow preparation.
See also section 3.5 “Special precautions for safe use in the target species”.
conditions.
Milk: Zero hours.
This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.
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Other Products Containing Bismuth Subnitrate
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Cepralock 2.6 g Intramammary Suspension for Dry Cows
POM-VIntervet International B.V.
Cepralock 2.6 g Intramammary Suspension for Dry Cows
POM-VIntervet International B.V.
DrySeal 2.6 g Intramammary Suspension for Cattle
POM-VElanco GmbH
DrySeal 2.6 g Intramammary Suspension for Cattle
POM-VElanco Europe Ltd
Fatroseal 2.6 g Intramammary Suspension for Dry Cows
POM-VFatro S.p.A.
Mastic Seal 2.6 g Intramammary Suspension for Cattle
POM-VBioveta, a.s.
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