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Trientine

Prescription
Copper Chelating Agent
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
2 available
Formulations
1

Mechanism of action

Polyamine chelator that binds copper in the GI tract (preventing absorption) and in systemic circulation, promoting urinary copper excretion. Alternative to penicillamine for copper storage hepatopathy with fewer side effects.

At a glance

Class
Copper Chelating Agent
Schedule
Prescription
Storage
Refrigerate 2–8°C

Dosing

🐕

Dog

Used for copper-associated hepatopathy (Bedlington Terriers, Labrador Retrievers
Dose
10–15 mg/kg
Route
PO
Frequency
q12h
🐈

Cat

Feline copper hepatopathy is rare
Dose
Route
PO
Frequency
N/A

Formulations

💊

Other — 1

Strength

Storage

Refrigerate 2–8°C

Safety

Monitoring parameters

Hepatic enzymes q3 monthsHepatic copper levels (biopsy)CBC (pancytopenia)Iron status with prolonged use

Interactions

No documented interactions.

Brands

Other markets

Syprine
Trientine HCl

FAQs

Frequently asked questions

What is Trientine?
Trientine is a copper chelating agent used in pets. Polyamine chelator that binds copper in the GI tract (preventing absorption) and in systemic circulation, promoting urinary copper excretion. Alternative to penicillamine for copper storage hepatopathy with fewer side effects.
What is Trientine used for in pets?
Trientine is used in veterinary medicine for: Used for copper-associated hepatopathy (Bedlington Terriers, Labrador Retrievers; Feline copper hepatopathy is rare.
What is the Trientine dose for dogs?
For dogs, Trientine is typically dosed as follows — Used for copper-associated hepatopathy (Bedlington Terriers, Labrador Retrievers: 10–15 mg/kg PO q12h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Trientine dose for cats?
For cats, Trientine is typically dosed as follows — Feline copper hepatopathy is rare: undefined undefined PO N/A. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Trientine need a prescription?
Yes. Trientine is a prescription medication and should only be administered under veterinary supervision.

References

References

Textbooks & handbooks

  • Plumb, D.C. Plumb's Veterinary Drug Handbook. 10th ed., Wiley-Blackwell, 2023.
  • Vail, D.M., Thamm, D.H., & Liptak, J.M. (eds.). Withrow & MacEwen's Small Animal Clinical Oncology. 6th ed., Saunders/Elsevier, 2020.
  • Riviere, J.E., & Papich, M.G. (eds.). Veterinary Pharmacology and Therapeutics. 10th ed., Wiley-Blackwell, 2018.
  • National Research Council. Nutrient Requirements of Dogs and Cats. National Academies Press, Washington DC, 2006.
  • The Merck Veterinary Manual. Merck & Co., Online edition. https://www.merckvetmanual.com/

Clinical guidelines & consensus

  • Fletcher, D.J., Boller, M., Brainard, B.M., et al. "RECOVER Evidence and Knowledge Gap Analysis on Veterinary CPR." Journal of Veterinary Emergency and Critical Care, 2012;22(S1):S102–S131.
  • American Animal Hospital Association. 2018 AAHA Diabetes Management Guidelines for Dogs and Cats. AAHA Press.

Journals & peer-reviewed studies

  • Hogan, D.F., Fox, P.R., Jacob, K., et al. "Secondary prevention of cardiogenic arterial thromboembolism in the cat: The FAT CAT study." Journal of Veterinary Cardiology, 2015;17(Suppl 1):S306–S317.
  • Boswood, A., Häggström, J., Gordon, S.G., et al. "Effect of Pimobendan in Dogs with Preclinical Myxomatous Mitral Valve Disease and Cardiomegaly: The EPIC Study — A Randomized Clinical Trial." Journal of Veterinary Internal Medicine, 2016;30(6):1765–1779.
  • ASPCA Animal Poison Control Center. Toxicology and Poison Management Guidelines. American Society for the Prevention of Cruelty to Animals. https://www.aspca.org/pet-care/animal-poison-control

Regulatory & approvals

  • Central Drugs Standard Control Organisation (CDSCO), Government of India. Veterinary Drug Approval Registry, 1969–2026. Directorate General of Health Services. https://cdsco.gov.in/

Databases

  • Washington State University, College of Veterinary Medicine. Veterinary Clinical Pharmacology Laboratory (VCPL) — MDR1 Multidrug Sensitivity Database. https://vcpl.vetmed.wsu.edu/
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →