Can You Use Hydrogen Peroxide on Dogs? Safety and Poisoning Advice

If your dog or cat may have swallowed something toxic, do not give hydrogen peroxide or another home remedy while searching for an answer online. Call your veterinarian, a local emergency veterinary hospital, or an animal poison control service immediately. In the United States, you can contact ASPCA Poison Control at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661. A consultation fee may apply.

If your pet is having trouble breathing, collapsing, seizing, becoming difficult to wake, or vomiting repeatedly, go to an emergency veterinary hospital now. If possible, have another person call ahead while you travel.

Short answer: Hydrogen peroxide is not a general first-aid treatment for dogs. In a limited number of poisoning cases, a veterinarian or veterinary toxicology professional may decide that inducing vomiting with hydrogen peroxide is appropriate for a particular dog. That decision must be based on the exact substance, the timing of exposure, the dog’s condition, and the risks of vomiting. Never give it unless a professional who has assessed the current incident explicitly tells you to do so.

Why you should call before trying to make a dog vomit

Vomiting is helpful in some poisoning cases and dangerous in others. A veterinary professional needs to identify what your dog swallowed and decide whether bringing it back up could cause more injury.

Inducing vomiting may be unsafe when a dog has swallowed a corrosive cleaner, a petroleum-based or volatile product, or a sharp object. It may also be dangerous when a dog is already vomiting, having a seizure, struggling to breathe or swallow, unusually weak or drowsy, unconscious, or at increased risk of inhaling vomit into the lungs.

This is not a complete list of unsafe situations. Different products—even products that sound similar—can require very different responses. Do not wait for symptoms to appear before asking for professional advice.

When might a professional consider hydrogen peroxide for a dog?

A veterinarian or animal poison control specialist may occasionally consider hydrogen peroxide for a dog after a recent ingestion when vomiting is expected to help, the dog is alert and able to swallow normally, and timely in-clinic treatment is not available. It is only one possible response to poisoning, and veterinary clinics often have more predictable options.

If a professional decides that hydrogen peroxide is appropriate, follow that person’s real-time instructions exactly. Do not guess an amount, substitute another product, use a stronger preparation, or repeat an attempt unless the veterinarian or poison control specialist specifically directs you to do so.

What can go wrong with hydrogen peroxide?

Hydrogen peroxide makes a dog vomit by irritating the digestive tract. Incorrect or unnecessary use can cause inflammation or injury to the mouth, esophagus, stomach, and intestines. Reported complications include prolonged vomiting, ulcers or bleeding, painful gas buildup, and aspiration pneumonia if liquid or vomit enters the lungs.

Concentrated or industrial peroxide products can be corrosive and may cause severe tissue injury. Any accidental swallowing of hydrogen peroxide, or any adverse reaction after it has been given, warrants immediate veterinary or poison control advice.

Never use hydrogen peroxide to make a cat vomit

Do not give hydrogen peroxide to a cat. There is no safe and effective way for a pet owner to induce vomiting in a cat at home. Hydrogen peroxide can severely irritate or damage a cat’s esophagus and stomach and has been associated with life-threatening complications.

If a cat may have swallowed a harmful substance, contact a veterinarian or animal poison control service immediately. Do not try a dog remedy, human remedy, or internet recipe while waiting for help.

Information to collect before you call

Fast, accurate information helps a veterinary professional assess the exposure. Have the following details ready if they are available:

• Your pet’s species, breed, age, approximate weight, and current symptoms
• The exact product, food, medication, plant, or chemical involved
• The package, ingredient list, label, or a clear photo of it
• The estimated amount involved and when the exposure happened
• Whether your pet has already vomited or received any food, medicine, or home remedy
• Relevant health conditions and current medications

Keep the container or packaging with you. If safe to do so, prevent further access to the substance. Do not delay the call because you cannot find every detail.

Home remedies to avoid

Do not use salt, mustard, syrup of ipecac, oil, butter, milk, forced gagging, or another improvised method to make a pet vomit. These methods may fail, create new poisoning risks, injure the throat, or increase the chance that material will enter the lungs.

Do not give activated charcoal, food, medication, or supplements unless a veterinarian or poison control specialist tells you they are appropriate for this specific exposure.

Can hydrogen peroxide be used on a dog’s wound?

Hydrogen peroxide is not recommended as a routine wound cleaner. It can damage healthy cells involved in healing and may delay tissue repair. Unless your veterinarian has given different instructions for a specific injury, clean water or sterile saline is generally a safer temporary way to rinse superficial debris while you arrange veterinary advice.

Deep wounds, punctures, animal bites, contaminated wounds, injuries near the eye, wounds that gape open, uncontrolled bleeding, or increasing pain and swelling need veterinary examination. Do not pour peroxide into a wound or attempt to treat an infection at home.

What if a dog was already given hydrogen peroxide?

Call your veterinarian or animal poison control service and explain what product was used, approximately how much was given, when it was given, and what has happened since. Do not give another amount unless a veterinary professional specifically instructs you to do so.

Seek emergency care for breathing changes, persistent coughing, repeated or bloody vomiting, dark or bloody stool, severe lethargy, abdominal swelling or pain, repeated unproductive retching, collapse, or any rapid deterioration.

Frequently asked questions

Can hydrogen peroxide make a dog vomit?

It can induce vomiting in some dogs, but it can also cause injury and is inappropriate for many types of poisoning. A veterinarian or animal poison control specialist must decide whether its potential benefit outweighs the risk in the individual case.

Should I make my dog vomit after it eats something toxic?

Do not make that decision based only on the name of the substance or advice found online. Some materials cause more damage when vomited, and some dogs have medical or airway risks that make vomiting unsafe. Call for case-specific guidance immediately.

Can I use hydrogen peroxide on a dog’s cut?

Routine use on wounds is discouraged because it can injure healthy tissue and delay healing. Ask your veterinarian how the particular wound should be cleaned and whether it needs an examination.

Can hydrogen peroxide be used to make a cat vomit?

No. Never give hydrogen peroxide to a cat to induce vomiting. Contact a veterinarian or animal poison control service instead.

Veterinary sources

• ASPCA: Is It Ever Safe to Induce Vomiting?
• ASPCA: Emergency Care for Your Pet
• American Veterinary Medical Association: Pet First Aid
• Merck Veterinary Manual: Principles of Toxicosis Treatment in Animals
• Pet Poison Helpline: Should I Make My Pet Vomit at Home?
• American Animal Hospital Association: Wound Management

This article provides general educational information and cannot determine the correct treatment for an individual poisoning or injury. Contact a veterinarian or veterinary poison control service for advice about your pet’s specific situation.