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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
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 →

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
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 →

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.
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 →

References

References

The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.

Textbooks & handbooks — 5

  • Plumb's Veterinary Drug Handbook
  • Withrow & MacEwen's Small Animal Clinical Oncology
  • Merck Veterinary Manual
  • NRC Nutrient Requirements of Dogs and Cats
  • Veterinary Pharmacology and Therapeutics (Riviere & Papich)

Clinical guidelines & consensus — 4

  • ASPCA Animal Poison Control Center Guidelines
  • AAHA Diabetes Management Guidelines
  • ASPCA Poison Control Guidelines
  • RECOVER CPR Guidelines

Journals & peer-reviewed studies — 2

  • EPIC Study (J Vet Intern Med 2016)
  • JVIM FAT CAT Study

Regulatory & approvals — 1

  • CDSCO Veterinary Drug Approval Registry (1969–2026)

Databases — 1

  • Washington State University VCPL MDR1 Database
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