Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy



or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.

Pet Family

PetMD Seal

Pennyroyal Oil Poisoning in Dogs

Pennyroyal Oil from Poisonous Plant for Dogs

 

Pennyroyal oil is derived from plants within the mint family known as Labiatae. It is frequently used in flea powders and sprays and in fragrances. It can be toxic to dogs, particularly when ingested. There has been one reported case of a dog suffering pennyroyal oil poisoning from dermal (skin) exposure as well.

 

Symptoms and Types

 

Symptoms expected with pennyroyal oil poisoning include:

 

  • Listlessness
  • Vomiting
  • Diarrhea
  • Coughing up blood
  • Difficulty breathing
  • Bloody nose
  • Lethargy
  • Coma
  • Seizures
  • Death

 

Causes

 

The active poison in pennyroyal oil is a chemical known as pulegone, which is toxic to the liver and can cause severe liver damage.

 

Diagnosis

 

Physical examination findings consistent with pennyroyal oil poisoning together with a history of exposure to plants, fragrances, or flea products containing pennyroyal oil may prompt suspicion of toxicity.

 

Blood tests reveal abnormalities consistent with liver damage, including elevated liver enzymes (alanine aminotransferase, alkaline phosphatase, aspartine aminotransferase, gamma-glyamyl transferase) and evidence of bleeding (anemia and prolonged clotting times.)

 

Evidence of hemorrhage (bleeding) may be seen in internal organs, such as the lungs, liver and kidneys.

 

A definitive diagnosis may be obtained by finding pulegone on gas chromatography (a specialized laboratory test that analyzes for specific chemicals.)

 

 
  • Lifetime Credits:
  • Today's Credits:
Hurry Before All Seats are Taken!
Enroll
Be an A++ Pet Parent! Take fun & free courses to earn badges & certifications. Choose a course»
Search dog Articles

 

Latest In Dog Nutrition

How Obesity May Shorten Your Pet's Lifespan
Obesity is a nationwide epidemic for our pets. Unfortunately, being obese can shorten...
READ MORE
How Your Overweight Pet Could Benefit from ...
Pet obesity has reached epidemic proportions. Fortunately, there are some things...
READ MORE
Five Life-Lengthening Health Tips for Your ...
Anyone who has ever had a dog or cat wishes just one thing — that he or she has a...
READ MORE
Around the Web
MORE FROM PETMD.COM