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Omega-3 Fatty Acids (EPA/DHA)

Essential fatty acid supplement (anti-inflammatory nutraceutical)
Last reviewed 19 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
4 available
Formulations
2

Mechanism of action

EPA and DHA compete with arachidonic acid in cyclooxygenase and lipoxygenase pathways, producing less inflammatory eicosanoids; supports skin/coat health, joint function, and renal protection

At a glance

Class
Essential fatty acid supplement (anti-inflammatory nutraceutical)
Schedule
OTC
Storage
Store in refrigerator after opening to prevent oxidation; protect from light

Dosing

🐕

Dog

Skin/coat health / Osteoarthritis adjunct / CKD / Cardiac support
Dose
50–100 mg EPA+DHA/kg
Route
PO
Frequency
SID (with food)
Max dose
5000 mg
Duration: Long-term; 4–6 weeks for skin effects
🐈

Cat

Skin/coat health / CKD / Inflammatory conditions
Dose
30–75 mg EPA+DHA/kg
Route
PO
Frequency
SID (with food)
Max dose
750 mg
Duration: Long-term
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

🧴

Liquid — 1

Strength
Variable (check EPA+DHA content)
Available in India
💊

Softgel capsule — 1

Strength
Variable (check EPA+DHA content)
Available in India

Storage

Store in refrigerator after opening to prevent oxidation; protect from light

Safety

Use with caution

  • Coagulopathy / Thrombocytopenia
    High doses may prolong clotting time
  • Concurrent high-dose aspirin
    Additive antiplatelet effect

Adverse effects

Common
Soft stools
Fishy breath/odor
Mild GI upset
Serious
Diarrhoea at excessive doses
Weight gain (caloric supplement)

Monitoring parameters

Coat/skin conditionGI toleranceBody weight
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

International

Welactin
Nutramax
Free Form Omega-3
Bayer

India

Pet Omega
Petcare India
Seaflex
Virbac India

FAQs

Frequently asked questions

What is Omega-3 Fatty Acids (EPA/DHA)?
Omega-3 Fatty Acids (EPA/DHA) is a essential fatty acid supplement (anti-inflammatory nutraceutical) used in pets. EPA and DHA compete with arachidonic acid in cyclooxygenase and lipoxygenase pathways, producing less inflammatory eicosanoids; supports skin/coat health, joint function, and renal protection
What is Omega-3 Fatty Acids (EPA/DHA) used for in pets?
Omega-3 Fatty Acids (EPA/DHA) is used in veterinary medicine for: Skin/coat health / Osteoarthritis adjunct / CKD / Cardiac support; Skin/coat health / CKD / Inflammatory conditions.
What is the Omega-3 Fatty Acids (EPA/DHA) dose for dogs?
For dogs, Omega-3 Fatty Acids (EPA/DHA) is typically dosed as follows — Skin/coat health / Osteoarthritis adjunct / CKD / Cardiac support: 50–100 mg EPA+DHA/kg PO SID (with food). Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Omega-3 Fatty Acids (EPA/DHA) dose for cats?
For cats, Omega-3 Fatty Acids (EPA/DHA) is typically dosed as follows — Skin/coat health / CKD / Inflammatory conditions: 30–75 mg EPA+DHA/kg PO SID (with food). Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What are the side effects of Omega-3 Fatty Acids (EPA/DHA)?
Common: Soft stools, Fishy breath/odor, Mild GI upset. Serious (call your vet immediately): Diarrhoea at excessive doses, Weight gain (caloric supplement).
Does Omega-3 Fatty Acids (EPA/DHA) need a prescription?
Omega-3 Fatty Acids (EPA/DHA) is available over the counter. Even so, you should consult your veterinarian before giving any medication to your pet.
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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