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VetoSeal (Canada)

This page contains information on VetoSeal for veterinary use.
The information provided typically includes the following:
  • VetoSeal Indications
  • Warnings and cautions for VetoSeal
  • Direction and dosage information for VetoSeal


This treatment applies to the following species:
Company: Vetoquinol

Dry Cow Intramammary Teat Sealant Device

Non-antibiotic veterinary device

Each syringe contains 4 g intramammary paste

Containing 65% bismuth subnitrate

For use in non-lactating dairy cattle

For animal use only

Read Entire Package Insert Carefully Before Using This Product

VetoSeal™ is a sterile, antibiotic-free, off-white smooth paste. It is presented, ready to use, in syringes, each containing 4 g of intramammary infusion composed of 65% bismuth subnitrate, in a mineral oil vehicle. VetoSeal™ is indicated as an aid in the prevention of new intramammary infection throughout the dry period by providing a malleable barrier in the teat canal. This results in a reduction in the incidence of clinical mastitis in the dry period.

It is recommended that VetoSeal™ be used as part of a herd approach to dry cow management and mastitis control.

WITHDRAWAL INFORMATION: For use in dry cows only. Zero-day milk and meat withdrawal when used alone. If VetoSeal™ is administered following an antibiotic infusion, the withdrawal periods for meat and milk for the antibiotic must be observed.


Keep out of reach of children. For animal treatment only. If VetoSeal™ gets on skin, wash with soap and warm water. If accidentally administered to a lactating cow, product can be stripped out by hand.

Adverse Reactions

Mastitis-causing bacteria introduced into the teat at the time of infusion of VetoSeal™ have been associated with adverse reactions. Each teat must be cleaned and disinfected prior to infusion of VetoSeal™. See below for instructions for administration of infusion products.


VetoSeal™ should be stored at room temperature. In very cold temperatures VetoSeal™ may become difficult to administer and should be warmed to room temperature. Individual syringes should not be immersed in water. The VetoSeal™ bucket can be lowered into a 5 gallon bucket filled with warm water to warm the syringes.

USES: VetoSeal™ is intended as an aid in the prevention of new intramammary infections of dairy cattle throughout the dry period.

INSTRUCTION FOR USE: After last milking at dry-off, clean and disinfect the teats with the alcohol wipes provided. Gently pinch the base of the teat near the udder attachment to close the teat canal. Infuse entire contents of one syringe of VetoSeal™ into each quarter by inserting the nozzle into the teat and applying gentle continuous pressure to the plunger until the paste is expressed. VetoSeal™ must remain in the teat canal to be effective.

Do not massage teat or udder following infusion. If an antibiotic is infused into the teat, the teat should be re-wiped with the alcohol wipe provided prior to infusion with VetoSeal™. If an antibiotic is used, it should always be infused before VetoSeal™. A clean, disinfected and dry teat is essential, as VetoSeal™ possesses no antimicrobial activity. It is advisable to use an appropriate teat disinfectant following the infusion.

VetoSeal™ is presented in syringes with a 2-stage tip. This 2-stage tip allows for either full or partial insertion into the teat orifice. Partial insertion only is preferable, as it may prevent unnecessary damage to the teat orifice and reduce the risk of infection. Full insertion may be needed for large teat orifices.

Option 1: For short tip intramammary administration

Option 2: For long tip intramammary administration

REMOVAL: Do not remove VetoSeal™ by action of the milking machine.

To reduce the potential for VetoSeal™ accumulation in milking machines, aggressively hand-strip VetoSeal™ out of every quarter, 10 to 12 strips per quarter, before milking fresh cows. Bucket-milk fresh cows for a minimum of three milkings, if possible.

Simple steps to avoid introducing infections during administration of intramammary infusions.

1. Do not place individual syringes in warm/hot water during cold weather.

2. Dry cows off abruptly rather than gradually.

3. Clean teat ends as thoroughly as possible with alcohol wipe and leave to air dry. DO NOT use water with or without disinfectant.

4. Clean the two teats furthest away first, followed by the two closest.

5. Ensure the teats are clean and dry before infusing VetoSeal™.

6. Infuse the teats in the opposite order to cleansing: i.e. infuse the closest two teats first, followed by the two furthest away.

7. After infusing, dip teats in teat dip or spray with disinfectant and leave cows standing in yard for at least half an hour to allow the teat canal to close.

8. Check cows regularly for signs of mastitis during the first week after drying off.

Use Only As Directed

Not for Human Use

Manufactured by: Norbrook Laboratories Limited, Newry, BT35 6PU, Co. Down, Northern Ireland

Distributed by: Vetoquinol N.-A. Inc., 2000, chemin, Georges, Lavaltrie, Québec, Canada J5T 3S5

Revised: MAY 2018

Presentation: Available in these package sizes: 144 syringes x 4 g (36 cows).

CPN: 1234456.1

Commercial Division

Telephone:   450-586-2252
Order Desk:   800-363-1700
Fax:   450-586-4649
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Copyright © 2023 Animalytix LLC. Updated: 2023-05-30