Is Eucalyptus Safe for Dogs?

Table of Contents

Key Takeaways

Even small doses of eucalyptus, particularly the oil form, can be toxic to dogs.
Eucalyptus oil can cause harm to dogs if they inhale it, lick it, or absorb it through their skin.
If your dog shows signs like vomiting, tremors, or weakness after exposure, get help from a vet fast.
Not all natural remedies are safe for pets. Always double-check with your vet before using anything with eucalyptus around your dog.

What Is Eucalyptus?

Quick Introduction to the Plant

Eucalyptus is a tall, fragrant tree that comes from Australia. You’ll often find its leaves in wellness products like oils, balms, and chest rubs because of its fresh scent and ability to help people breathe easier.

It’s also used as a natural insect repellent and in household cleaners. Dogs experience it differently than humans, even though it may seem like a routine to humans.

How People Use Eucalyptus Today

These days, eucalyptus shows up in:

Essential oils and vapor rubs
Reed diffusers and humidifiers
Candles and air fresheners
Lotions and shampoos
Yard landscaping and flower arrangements

Some of these are harmless to humans, but pets process things differently.

Is Eucalyptus Toxic to Dogs?

Short Answer: Yes, it can be.

Eucalyptus is toxic to dogs. The main problem is a compound called eucalyptol (or cineole). This substance can affect a dog’s nervous system and liver. Dogs aren’t built to break it down like we are.

Even a small amount—like a few drops of eucalyptus oil—can lead to trouble.

Different Forms and Their Risks

Here’s how risky different eucalyptus forms can be for dogs:

Eucalyptus oil (undiluted)—Extremely toxic if licked or absorbed through skin
Eucalyptus leaves—chewing or eating them can cause vomiting or worse.
Diffusers—Inhaling the mist may irritate the lungs or cause neurological symptoms.
Trees in yards—Risk depends on how much is ingested.

How Much Eucalyptus Is Dangerous for Dogs?

Toxic Dose and Exposure Levels

The exact toxic dose varies based on the dog’s size and sensitivity, but according to the Pet Poison Helpline, as little as 0.1 mL of eucalyptus oil per kilogram of body weight can be dangerous.

Eucalyptus Forms vs. Risk Table

Form	Risk Level	Exposure Type	Notes
Undiluted oil	Very High	Skin or ingestion	Avoid completely.
Diluted in products	Moderate	Skin or inhalation	Still risky for small dogs
Dried leaves	Medium	Ingestion	May still cause vomiting.
Scent diffusers	Moderate–High	Inhalation	Can irritate lungs
Outdoor trees	Low–Moderate	Chewing leaves	Depends on the amount.

Symptoms of Eucalyptus Poisoning in Dogs

What to Watch For

Dogs react differently based on how much they were exposed to, but here are the most common signs:

Drooling
Vomiting
Diarrhea
Weakness or trouble standing
Tremors or shaking
Confusion or acting off
Seizures (in severe cases)

If your dog starts showing any of these signs and you suspect eucalyptus exposure, don’t wait.

What to Do If Your Dog Eats Eucalyptus

Immediate Steps to Take

Stay calm—your dog can sense your panic.
Remove the source—take away the eucalyptus product right away.
Don’t induce vomiting unless a vet tells you to—doing so could make things worse.
Call your vet or the Pet Poison Helpline (855-764-7661)—share your dog’s weight, age, what they were exposed to, and how much.

How to Handle Eucalyptus Oil on Skin or Fur

Rinse the area with lukewarm water and a mild pet-safe shampoo.
Avoid harsh scrubbing.
Watch for redness, itching, or signs your dog is licking the area again.
Contact your vet if you see swelling or other symptoms.

Is Eucalyptus in the Air Harmful to Dogs?

About Diffusers and Sprays

Yes, even inhaling eucalyptus can be risky for dogs. Diffusers and sprays that use eucalyptus oil release tiny particles into the air. Dogs have a stronger sense of smell and smaller lungs than us, which makes them more sensitive.

Constant exposure can lead to:

Sneezing or coughing
Runny nose
Eye irritation
Disorientation or restlessness

Safe Ventilation Practices

If you really want to use eucalyptus in your space:

Use it only in rooms your dog doesn’t enter.
Keep windows open for airflow.
Don’t leave diffusers running all day.
Store products in closed cabinets.

Can Dogs Smell Eucalyptus? Do They Like It?

How Dogs React to the Scent

Most dogs hate the smell of eucalyptus. It’s overpowering and unnatural for them. Some dogs might whine, pace, or try to leave the room when they catch a whiff.

Others might show physical signs like squinting or pawing at their nose.

If your dog avoids an area where you’re using eucalyptus, listen to them.

Can Eucalyptus Be Used on Dogs for Fleas?

Natural Flea Treatments: Safe or Not?

You might have heard of homemade sprays that use eucalyptus for fleas. Please don’t try this unless your vet says it’s safe.

DIY flea sprays using eucalyptus oil can cause:

Skin irritation
Chemical burns
Serious illness if licked

Even if diluted, most vets recommend skipping it altogether.

Safe Alternatives to Eucalyptus for Dogs

Dog-Friendly Essential Oils

These oils are generally safer but must still be diluted:

Lavender – Calming and soothing
Chamomile – Helps with itching
Cedarwood – Some flea-repelling benefits

Tips for Natural Pet Care

Always use pet-grade essential oils, not human ones.
Dilute with a carrier oil like coconut oil.
Test a small area and wait 24 hours.
Ask your vet before using anything new.

What Vets Say About Eucalyptus and Dogs

Expert Opinions

According to the ASPCA, eucalyptus is toxic to dogs. The Pet Poison Helpline confirms that even a small amount of essential oil can be dangerous if ingested or absorbed.

Veterinarian Dr. Karen Becker writes:

“Essential oils like eucalyptus should be considered off-limits for pets unless prescribed under close supervision.”

How to Dog-Proof Your Home from Eucalyptus Risks

Simple Prevention Tips

Keep essential oils locked away or up high.
Don’t use diffusers near crates or dog beds.
Clean up spills right away.
Warn guests who bring scented items.

FAQs: Eucalyptus and Dogs

1. Can eucalyptus make my dog sick?
Yes. Even a small amount can cause vomiting, weakness, or worse.

2. Is eucalyptus in shampoo safe for dogs?
No. Unless it’s a vet-approved product, avoid it.

3. What if my dog licked a eucalyptus candle?
Call your vet. It depends on how much they ingested and their size.

4. Are dried eucalyptus leaves safe to keep at home?
Keep them out of reach. Dogs might chew on them, which is risky.

5. Should I stop using eucalyptus in my diffuser?
If your dog shares the space, yes. Try safer options or ventilate well.

Conclusion: Should You Use Eucalyptus Around Dogs?

Eucalyptus might seem like a natural fix for a lot of things, but when it comes to dogs, it’s not worth the risk. From oils to diffusers, even a little exposure can lead to problems. If you’re set on using essential oils in your routine, go for safer ones like lavender or cedarwood—and always run it by your vet first.

Last Reviewed: July 15, 2025