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Hydrogen Peroxide 3% (Oral Emetic)

Topical Oxidizing Agent / Emetic
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
1 available
Formulations
1

Mechanism of action

Releases nascent oxygen on contact with catalase in gastric mucosa, producing rapid gastric distension and direct mucosal irritation, triggering vomiting within 10–15 minutes. Used as home-administered emetic for recent toxin ingestion.

At a glance

Class
Topical Oxidizing Agent / Emetic
Schedule
OTC
Storage
Store at room temperature, tightly sealed; check expiry — decomposes over time

Dosing

🐕

Dog

Home emetic for dogs that recently ingested toxins (<2h)
Dose
1–2 mL/kg
Route
PO
Frequency
Once; repeat once if needed
🐈

Cat

NOT recommended for cats
Dose
Route
N, A
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

Store at room temperature, tightly sealed; check expiry — decomposes over time

Safety

Monitoring parameters

Vomiting within 15 minAssess ingested material returnedMonitor for bloody vomit (gastric irritation)
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

H2O2 3%

FAQs

Frequently asked questions

What is Hydrogen Peroxide 3% (Oral Emetic)?
Hydrogen Peroxide 3% (Oral Emetic) is a topical oxidizing agent / emetic used in pets. Releases nascent oxygen on contact with catalase in gastric mucosa, producing rapid gastric distension and direct mucosal irritation, triggering vomiting within 10–15 minutes. Used as home-administered emetic for recent toxin ingestion.
What is Hydrogen Peroxide 3% (Oral Emetic) used for in pets?
Hydrogen Peroxide 3% (Oral Emetic) is used in veterinary medicine for: Home emetic for dogs that recently ingested toxins (<2h); NOT recommended for cats.
What is the Hydrogen Peroxide 3% (Oral Emetic) dose for dogs?
For dogs, Hydrogen Peroxide 3% (Oral Emetic) is typically dosed as follows — Home emetic for dogs that recently ingested toxins (<2h): 1–2 mL/kg PO Once; repeat once if needed. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Hydrogen Peroxide 3% (Oral Emetic) dose for cats?
For cats, Hydrogen Peroxide 3% (Oral Emetic) is typically dosed as follows — NOT recommended for cats: undefined undefined N/A N/A. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Hydrogen Peroxide 3% (Oral Emetic) need a prescription?
Hydrogen Peroxide 3% (Oral Emetic) 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

CDSCO approvals (India) — 1

Hyperox peracetic acid + hydrogen peroxide liquid
M/s Pfizer Limited · Approved 01.09.2004
Disinfections of farms for livestock species.
Source: CDSCO Veterinary Drug Approval Registry (1969–2026)

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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