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Vitamin E (Alpha-Tocopherol)

Fat-Soluble Vitamin / Antioxidant
Last reviewed 22 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
2 available
Formulations
3

Mechanism of action

Primary lipid-soluble antioxidant that intercalates into cell membranes, scavenging peroxyl radicals and protecting polyunsaturated fatty acids from oxidative damage. Also modulates immune function, gene expression, and platelet aggregation.

At a glance

Class
Fat-Soluble Vitamin / Antioxidant
Schedule
OTC
Storage
Store at room temperature, protect from light

Dosing

🐕

Dog

Used for immune-mediated skin disease (with omega-3 fatty acids), inflammatory m
Dose
10–20 IU/kg
Route
PO
Frequency
q12–24h
🐈

Cat

Feline pansteatitis (yellow fat disease) from all-fish diet requires vitamin E s
Dose
30–100 IU
Route
PO
Frequency
q24h
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 — 3

Strength
Strength
Strength

Storage

Store at room temperature, protect from light

Safety

Monitoring parameters

Clinical responseCoagulation if concurrent anticoagulantsNo routine monitoring needed at standard doses
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

Aquasol E
Various supplements

FAQs

Frequently asked questions

What is Vitamin E (Alpha-Tocopherol)?
Vitamin E (Alpha-Tocopherol) is a fat-soluble vitamin / antioxidant used in pets. Primary lipid-soluble antioxidant that intercalates into cell membranes, scavenging peroxyl radicals and protecting polyunsaturated fatty acids from oxidative damage. Also modulates immune function, gene expression, and platelet aggregation.
What is Vitamin E (Alpha-Tocopherol) used for in pets?
Vitamin E (Alpha-Tocopherol) is used in veterinary medicine for: Used for immune-mediated skin disease (with omega-3 fatty acids), inflammatory m; Feline pansteatitis (yellow fat disease) from all-fish diet requires vitamin E s.
What is the Vitamin E (Alpha-Tocopherol) dose for dogs?
For dogs, Vitamin E (Alpha-Tocopherol) is typically dosed as follows — Used for immune-mediated skin disease (with omega-3 fatty acids), inflammatory m: 10–20 IU/kg PO q12–24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Vitamin E (Alpha-Tocopherol) dose for cats?
For cats, Vitamin E (Alpha-Tocopherol) is typically dosed as follows — Feline pansteatitis (yellow fat disease) from all-fish diet requires vitamin E s: 30–100 IU PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Vitamin E (Alpha-Tocopherol) need a prescription?
Vitamin E (Alpha-Tocopherol) 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

Related medicines

Other medicines in the same class (Fat-Soluble Vitamin / Antioxidant).

Vitamin E
Potent lipid-soluble antioxidant that protects cell membranes from oxidative damage by scavenging free radicals; modulates immune function and reduces inflammatory mediators
dogcat
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