Tetanus Antitoxin

  • Category: Vaccine & Wormer
  • Brand: Colorado Serum
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Administration of Tetanus Antitoxin is recommended for use whenever a non-immunized animal or one whose immune status is unknown, suffers a deep penetrating wound that has or may become contaminated with soil. It provides quick but short-term protection.

Vaccination with tetanus toxoid is recommended for healthy domestic animals not infected with tetanus, to establish an active immunity for prevention against disease.

See Label/Directions tab below for dosing and usage instructions.

VACCINE ORDER SHIPPING:  All vaccine orders will be shipped Next Day Air ($35.00) or 2-day air ($22.00) – options provided at checkout.  All vaccines are shipped with ice packs in an insulated foam cooler box for maximum protection.  Next Day Air packages are shipped Monday-Thursday; 2-day air packages are shipped Monday-Wednesday to insure package does not sit in transit over the weekend.

People who live in MN, IA, SD, ND, NE, IL or WI may be eligible for ground shipping if so desired.  Please call 800-328-6652 to place your order and request SpeeDee delivery.


(Excludes Sand-Free)

The map below indicates ground transit time via Fed Ex. All orders placed before 3:00 p.m. CST will be shipped the same day.  ALL orders placed Friday (after 3PM)/Saturday/Sunday will be shipped the following Monday.


Orders placed over the weekend (Friday after 3PM/Saturday/Sunday) will be shipped the following Monday.  All vaccines orders are shipped to be received within the same week (ie. Any order placed Wednesday (after 3 p.m. CST), Thursday or Friday to ship 2 day air, we will hold your order to ship on the following Monday).  No vaccines will be shipped on a Friday.

We strongly recommend ALL vaccine orders be shipped 2nd day or Next day air. Vaccines not shipped in this manner are non-returnable/non-refundable.  All vaccine orders are shipped in a bio-cooler with ice ice packs.  

2-DAY AIR:  $22.00
Next Day Air:  $35.00

NOTE  Express order delivery time:  Example:  2 day air (2 business days) - if your order ships on Monday, you will receive it Wednesday.  Air shipping Flat Rates apply to FedEx service only.  Vaccines are not shipped on Fridays - NO Saturday express deliveries unless requested (additional express charges will apply).

WEATHER DELAYS:  We are not able to reimburse air charges due to inclement weather that is not in our control.



Unless item is designated "FOB", or marked "Freight Charges Apply" shipping by ground service is FREE within the contiguous 48 states (Fed Ex ground or SpeeDee only).

 MVP supplements ship FREE (Exlcuding Sand Free).

If shipping to a commercial address: Your package will be delivered during the work week (Monday through Friday).

WHEN ORDERING REMEMBER $35.00 minimum order necessary for shipment.
$35.00 - $75.00 order add $6.95 handling.
ALL products marked FOB (Freight On Board) OR Freight Charges Apply - will incur a freight charge.






Colorado Serum


GENERAL INFORMATION: Tetanus Antitoxin is prepared from the blood of healthy horses that have been hyperimmunized. It is recommended for use as an aid in the prevention and treatment of tetanus in animals. Each serial is tested for purity, safety, and antitoxin unitage in accordance with applicable standard requirements issued by USDA.

Tetanus is caused by a neurotoxin (poison) produced by the growth of Clostridium tetani, an anaerobic (lives without air) micro-organism, in necrotic tissue.

Affected animals become stiff, have great difficulty swallowing, and an increased pulse rate. Breathing is labored. Spasmodic contractions of the muscle system occurs, extending muscles of the jaw. Thus, the term “lockjaw” is frequently applied. Legs are often spread and the tail is stiff with abdominal muscles retracted. Tetanus stricken animals may be unusually sensitive to light and heat. Temperature of the animal generally remains normal, elevating only shortly before death.


Administration of Tetanus Antitoxin is recommended for use whenever a non-immunized animal, or one whose immune status is unknown, suffers a deep penetrating wound that has or may become contaminated with soil. It provides quick, short-term protection. Antitoxin may also be administered to animals following castration, docking, and other operations performed on premises upon which tetanus infection has been a problem.


Vaccination with tetanus toxoid is recommended for healthy domestic animals not infected with tetanus, to establish an active immunity for prevention against disease. Refer to the product circular for Tetanus Toxoid for full information and consult with a veterinarian.


DIRECTIONS: Do not vaccinate within 21 days before slaughter.


DOSAGE AND ADMINISTRATION: Tetanus antitoxin confers immediate passive immunity lasting about 7 to 14 days. 1500 units administered subcutaneously or intramuscularly is the recommended dose for prevention. 5 ml equals 1500 units.


Large doses of Tetanus Antitoxin may provide a beneficial response in animals already infected with tetanus, but success of treatment is not assured. For treatment; administer 10,000 to 50,000 units to horses and cattle, 3,000 to 15,000 units to sheep and swine.

Animals that suffer slow healing puncture wounds or deep abrasions should be given a second dose of antitoxin in 7 days and additionally as considered necessary.


PRECAUTIONS: Anaphylactoid reaction may occur following administration of products of this nature. If noted, administer adrenalin or equivalent.


A condition referred to as “serum hepatitis” infrequently occurs in horses. The literature associates this partially with the injection of biologics containing equine serum or tissue. This connection is based, at the present time, upon supposition and not upon scientific evidence, as efforts to experimentally reproduce such a condition in horses have not been successful. It seems prudent, however, in view of the published implication, to make users aware of it. Some of the same publications, that refer to “serum hepatitis” continue to recommend the use of Tetanus Antitoxin in horses that have suffered wounds that may have been contaminated with Clostridium tetani and the immunization status is unknown. If user has any questions consult with a veterinarian.


OTHER INFORMATION: Store at 2° to 7°C. Do not freeze. Use entire contents when first opened. Contains phenol and thimerosal as preservatives. Tetanus Antitoxin is available in 1,500 and 15,000 unit vials, and in packages containing 10 x 1,500 unit vials.


SKU:  Size Exp Date Price Quantity
23360088 1 dose Product Expires 11/2018 $4.25
23360090 10 dose vial Product Expires 8/2018 $20.50

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