Our Privacy/Cookie Policy contains detailed information about the types of cookies & related technology on our site, and some ways to opt out. By using the site, you agree to the uses of cookies and other technology as outlined in our Policy, and to our Terms of Use.


The Use of Terramycin in Dogs

| Updated September 26, 2017

Terramycin is an antibiotic that is commonly used for bacterial infection treatment in dogs. Like minocycline and doxycycline, the drug is classified as a tetracycline. Since Terramycin is a prescription medication, veterinary prescriptions are necessary for its administration in dogs. Terramycin is also commonly used in felines.

How Terramycin Works

Terramycin restrains bacteria by subduing the growth and synthesis of protein. It prevents bacteria from manufacturing proteins that assist them in multiplying. The drug can combat many bacteria including one-celled organisms. Terramycin can control bacteria that lead to infection of the blood cells, sinuses, bones, oral cavities, eyes and respiratory tract.

Bacterial Infection Treatment

Some examples of the bacterial infections that Terramycin regularly treats are infected wounds, protozoa infections, pneumonia and blood cell infections, among others. This drug comes in eye ointment, capsule and solution form. The solution forms are administered by injection.

Terramycin is not to be used to treat parasitic, fungal, mite or viral infections. It simply isn't successful in fighting these kinds of infections. While Terramycin doesn't have FDA approval for dogs, veterinarians can prescribe the medication on an extra-label drug basis.

Possible Side Effects and Reactions

This drug, when given under veterinary care, is usually safe. Side effects appear in some pets, however. Possible side effects include:

  • Teeth discoloration.
  • Kidney trauma.
  • Reduced appetite.
  • Intestine and stomach troubles. 
  • The ophthalmic ointment form of this medication sometimes causes stinging in pets.

Effects such as kidney trauma, reduced appetite and intestine and stomach woes can develop when Terramycin is administered at high doses.

Anaphylaxis can happen in some pets who are given Terramycin, although this is uncommon. Signs of these serious allergic reactions include:

  • Swelling of the face.
  • Difficulty breathing.
  • Restless behavior.
  • Decreased muscle coordination (ataxia).
  • Salivation.

Precautions For Terramycin Use

Terramycin isn't suitable for all canines. It shouldn't be administered to pregnant dogs as it can trigger liver troubles. It also shouldn't be administered to pets who are hypersensitive or allergic to it.

The antibiotic can cause possible interactions when administered in conjunction with other types of medicines. Oral antacids can interact with Terramycin. Inform your veterinarian of all medications your dog is using prior to administering this drug.


  • Carefully follow the administration guidelines and dosage amounts your veterinarian provides you for this drug. Unless the veterinarian indicates otherwise, make sure your dog finishes his prescription in full. This is important for minimizing the risk of relapse or resistance in your pet.


  • If you notice any side effects or potential signs of allergic reaction to Terramycin in your pet, notify your veterinarian immediately.